neovim find and replace match case
To find and replace with case-sensitive matching in Neovim, use:
:%s/old/new/g
That is case-sensitive by default.
If you want case-insensitive, add \c (case-insensitive flag):
:%s/\cold/new/g
Or make it explicitly case-sensitive with \C:
:%s/\Cold/new/g
\c — ignore case\C — match caseg — global (replace all in line)i — makes the whole search case-insensitive (but not recommended with \c/\C` mix)Let me know if you want to do this across files or using vim.regex in Lua.
why am i getting this error on make migrate {“time”:”2025-04-17T13:24:22.027560063+05:30”,”level”:”ERROR”,”msg”:”Command failed”,”error”:”failed to migrate campaigns database: sql/schema: modify "executors" table: ERROR: column "completed_at" of relation "executors" contains null values (SQLSTATE 23502)”}
That error means you’re trying to make a column (completed_at) NOT NULL, but existing rows already contain NULLs in that column. PostgreSQL won’t allow that.
ERROR: column "completed_at" of relation "executors" contains null values (SQLSTATE 23502)
AlterTable("executors").ModifyColumn("completed_at", ...) making it .NotNull().completed_at.UPDATE executors SET completed_at = NOW() WHERE completed_at IS NULL;
.NotNull().completed_at is meant to be optional, don’t add .NotNull() in your schema.ent/schema/executor.go:field.Time("completed_at").Optional()
Then run ent generate and make migrate.
Want me to inspect the generated migration SQL or suggest how to write a conditional migration?
exclude files from git stash
You can’t directly exclude files from git stash, but you can work around it.
There’s no git stash --exclude or .gitstashignore.
git stash push -p
If it’s a full file you want to exclude:
git restore --staged file-to-keep # If staged
git restore file-to-keep # Restore to last commit
git stash
git restore -s :0 file-to-keep # Restore the excluded file from stash index
If you’re doing this often, consider committing WIP changes to a feature branch instead of stashing—gives you full control.
Want a script for skipping files during stash?
i have a model package models
import “github.com/google/uuid”
type ABTestModel struct { Id int64 json:”id” CampaignId uuid.UUID json:”campaign_id” StageId uuid.UUID json:”stage_id” Variants string json:”models” }
then in a service function package abtesting
import ( “because/internal/modules/campaigns/models” “context” )
func (abs abTestingService) CreateABTest(ctx context.Context, request *models.ABTestModel) (models.ABTestModel, error) { abtest, err := abs.client.ABTest.Create(). AddCampaignIDs(request.CampaignId). SetStageId(request.StageId). SetVariants(request.Variants). Save(ctx)
if err != nil {
return nil, err
}
return &models.ABTestModel{
Id: int64(abtest.ID),
StageId: abtest.StageId,
CampaignId: request.CampaignId,
Variants: abtest.Variants,
}, nil }
but strangely go is complaining /modules/campaigns/service/abtesting/abtesting.go:19:17: undefined: models.ABTestModel
This error suggests Go can’t find models.ABTestModel, even though it looks correct at first glance.
If the file inside models/ is not actually using package models, or if it’s misspelled (e.g., package model), Go won’t resolve models.ABTestModel.
Double-check the top of that file:
package models
Make sure:
ABTestModel is not excluded by build tags (// +build something) or misplaced in a _test.go file.From the error path /modules/campaigns/service/abtesting/abtesting.go, your import:
"because/internal/modules/campaigns/models"
should point to this file structure:
because/
internal/
modules/
campaigns/
models/
ab_test_model.go <-- defines ABTestModel
service/
abtesting/
abtesting.go
Run:
go mod tidy
go build ./...
If there are import path issues or stale builds, this will catch them.
Make sure there’s no type ABTestModel defined elsewhere in the same package as abtesting.go.
Want me to inspect an example repo layout or help refactor the model into a schema + DTO split?
funny all of the requirements were met but my file was named abtest_model.go, renaming it to ab_test_model.go worked
Classic Go gotcha. Go uses lexical package discovery, not full AST parsing when indexing — go build will sometimes ignore files with underscores that don’t conform to its expectations, or misbehave when naming clashes or internal tool assumptions occur.
If you had:
abtest_model.go defining package modelsmodels.ABTestModel usageRenaming to ab_test_model.go made it follow the common Go convention more closely, aligning with tool expectations.
Even if Go technically doesn’t care about file names, the ecosystem does. Avoid names that shadow types or suggest alternate packages.
Let me know if you want a linter rule or naming convention doc for your project.
will entgo auto provide an ID for this schema? if so, what will be the type of the ID // Fields of the Template. func (ABTest) Fields() []ent.Field { return []ent.Field{ field.UUID(“stageId”, uuid.UUID{}).Unique(), field.String(“variants”), field.Time(“created_at”).Default(time.Now), field.Time(“updated_at”).Default(time.Now).UpdateDefault(time.Now), } }
Yes — Ent will automatically generate an id field if you don’t define one explicitly.
If your schema doesn’t define an id, Ent injects:
field.Int("id").Unique().Immutable()
So in your case:
ID field will be int (int in Go, INT in SQL)abtest.ID in GoDefine it explicitly:
field.UUID("id", uuid.UUID{}).
Default(uuid.New).
Immutable()
This replaces the auto int and makes id a UUID with automatic generation.
Let me know if you’re using Postgres and want to back your UUIDs with uuid_generate_v4() in SQL for consistency.
{“time”:”2025-04-18T00:57:27.145971507+05:30”,”level”:”ERROR”,”msg”:”Command failed”,”error”:”failed to migrate campaigns database: sql/schema: alter table "ab_tests": unexpected attribute change (expect IDENTITY): []”} after adding uuid to the schema
This error is from Ent’s migration system getting confused by a change to the id field — specifically, you’re switching from the default int ID to a custom uuid after the table has already been created.
id as an INT GENERATED BY DEFAULT AS IDENTITY.UUID, so Ent tries to ALTER it.unexpected attribute change (expect IDENTITY)
You must drop and recreate the table if you’re changing the ID type.
Drop and re-create the table:
DROP TABLE ab_tests;
Then run:
make migrate
ab_tests table.But this isn’t handled automatically — you’d have to write a manual migration.
Always define your preferred id type before first migration — Ent locks it in permanently unless you go full manual.
Want a reusable template or script for safe UUID migration?
SQL Error [2BP01]: ERROR: cannot drop table ab_tests because other objects depend on it
You’re hitting PostgreSQL’s dependency protection: the ab_tests table is referenced by foreign keys or views.
Run this SQL to list what depends on ab_tests:
SELECT
conname AS constraint_name,
conrelid::regclass AS dependent_table
FROM pg_constraint
WHERE confrelid = 'ab_tests'::regclass;
Drop the foreign key constraints or tables that reference ab_tests.
Example:
ALTER TABLE referencing_table DROP CONSTRAINT referencing_table_ab_tests_id_fkey;
DROP TABLE ab_tests;
You can re-add the constraints after recreating the ab_tests table.
If this is dev/local and you’re okay with blowing up dependencies:
DROP TABLE ab_tests CASCADE;
⚠️ This also drops everything depending on it — be careful.
ab_tests_v2 with UUID ID.ab_tests to ab_tests_v2.ab_tests_v2.ab_tests_v2 to ab_tests.This avoids CASCADE and preserves production data.
Want a template for a safe UUID migration with FK rewiring?
give me a timestamp consistent with the output of go’s time.Now()
Here’s a timestamp in the format produced by time.Now().String() in Go:
2025-04-18 01:22:43.9178234 +0530 IST
This matches the output of:
fmt.Println(time.Now())
Let me know if you want an RFC3339 or Unix version instead.
Yes — you can get the CampaignId from the created abtest, but only if you explicitly query the edge back when creating or loading it. Ent does not automatically include edge fields like foreign keys unless you either:
Eager-load them (.WithX()),
Or access the raw foreign key field (if it’s modeled as a regular column).
🔍 Current issue: You’re doing this: goCopyEditabtest, err := abs.client.ABTest.Create(). AddCampaignIDs(request.CampaignId). SetStageId(request.StageId). SetVariants(request.Variants). Save(ctx)
Then trying to get CampaignId back via: goCopyEditCampaignId: request.CampaignId
But you want to avoid using request.
✅ Option 1: Query the campaign edge after creation goCopyEditabtest, err := abs.client.ABTest.Create(). AddCampaignIDs(request.CampaignId). SetStageId(request.StageId). SetVariants(request.Variants). Save(ctx) if err != nil { return nil, err }
abtest, err = abs.client.ABTest. Query(). Where(abtest.IDEQ(abtest.ID)). WithCampaigns(). Only(ctx) if err != nil { return nil, err }
campaigns := abtest.Edges.Campaigns if len(campaigns) == 0 { return nil, fmt.Errorf(“no campaigns linked to abtest %s”, abtest.ID) }
return &models.ABTestModel{ Id: abtest.ID, StageId: abtest.StageId, CampaignId: campaigns[0].ID, Variants: abtest.Variants, }, nil
✅ Option 2: Add a campaign_id field explicitly If you want simpler access and only a single campaign per AB test, define it directly: goCopyEditfield.UUID(“campaign_id”, uuid.UUID{}),
And then use .SetCampaignID(…) instead of .AddCampaignIDs(…) — and skip edge traversals when reading. Ent allows both: an edge for navigability, and a raw field for fast lookups.
🧠 Recommendation If you know the relation is 1:1, model it that way with .Unique(): goCopyEditedge.From(“campaign”, Campaign.Type).Ref(“abtests”).Unique()
And use SetCampaignID(…). Cleaner, faster, no need for WithCampaigns() calls. Want help rewriting the schema that way?
the relation is one to many as in one campaign can have many abtests
Perfect — in that case, you’re doing the right thing with the AddCampaignIDs(…) call. But here’s the catch:
Ent stores the foreign key (campaign_id) on the ABTest table, but it doesn’t expose it directly unless you define a corresponding field.UUID(“campaign_id”, …) in the schema.
⚠️ Why your code can’t read it: You’re setting the edge: goCopyEditAddCampaignIDs(request.CampaignId)
But after .Save(), the returned abtest struct:
Has abtest.CampaignId unset (not part of the struct)
Has abtest.Edges.Campaigns nil, unless you .WithCampaigns() on query
✅ Solution A: Add a raw FK field In your ABTest schema: goCopyEditfield.UUID(“campaign_id”, uuid.UUID{}),
This gives you direct access to abtest.CampaignID after saving — no extra query needed. Ent is smart enough to keep the edge in sync: goCopyEditedge.From(“campaign”, Campaign.Type). Ref(“abtests”). Field(“campaign_id”). Required()
Now your service logic is clean: goCopyEditabtest, err := abs.client.ABTest.Create(). SetCampaignID(request.CampaignId). SetStageId(request.StageId). SetVariants(request.Variants). Save(ctx)
return &models.ABTestModel{ Id: int64(abtest.ID), CampaignId: abtest.CampaignID, // ✅ direct access StageId: abtest.StageId, Variants: abtest.Variants, }, nil
✅ Solution B: Eager load the edge If you want to keep the edge-only model: goCopyEditabtest, err := abs.client.ABTest. Create(). AddCampaignIDs(request.CampaignId). SetStageId(request.StageId). SetVariants(request.Variants). Save(ctx)
abtest, err = abs.client.ABTest. Query(). Where(abtest.IDEQ(abtest.ID)). WithCampaigns(). Only(ctx)
CampaignId := abtest.Edges.Campaigns[0].ID
But this adds a second query — and unnecessary indirection.
🧠 Summary:
1:N edge + explicit FK field gives you both speed and clarity.
Add .Field(“campaign_id”) to the edge and schema.
Use SetCampaignID(…) instead of AddCampaignIDs(…).
Want a schema snippet showing the full setup?
what does this do func (Executor) Indexes() []ent.Index { return []ent.Index{ index.Fields(“user_id”, “campaign_id”), index.Fields(“campaign_id”, “stage_id”, “variant_id”), } }
That function defines SQL indexes on your executors table via Ent. These help speed up queries that filter or sort by the listed fields. Here’s what each line does: goCopyEditindex.Fields(“user_id”, “campaign_id”)
Creates a composite index on (user_id, campaign_id)
Optimizes queries like: sqlCopyEditSELECT * FROM executors WHERE user_id = ? AND campaign_id = ?
goCopyEditindex.Fields(“campaign_id”, “stage_id”, “variant_id”)
Another composite index, this time on (campaign_id, stage_id, variant_id)
Optimized for queries like: sqlCopyEditSELECT * FROM executors WHERE campaign_id = ? AND stage_id = ? AND variant_id = ?
🔍 Why use composite indexes? Because PostgreSQL (and others) can use the index if the leading columns are part of the filter:
Index on (A, B) supports:
WHERE A = ? ✅
WHERE A = ? AND B = ? ✅
WHERE B = ? ❌
🧠 Pro tips:
Don’t add indexes unless they’re needed — they cost write performance.
Composite indexes should reflect your most common query patterns.
If user_id and campaign_id are also frequently queried separately, consider single-column indexes too.
Want help analyzing your query patterns and optimizing indexes accordingly?
func (svc executorService) UpdateExecution( ctx context.Context, request *models.UpdateExecutionRequest, ) (models.UpdateExecutionResponse, error) {
uid, err := uuid.Parse(request.UserId)
if err != nil {
return nil, err
}
cid, err := uuid.Parse(request.CampaignId)
if err != nil {
return nil, err
}
// udpate or create the record
execution, err := svc.client.Executor.Query().Where(
executor.And(
executor.CampaignIDEQ(cid),
executor.UserID(uid),
)).First(ctx)
if err != nil {
_, err = svc.client.Executor.Create().
SetUserID(uid).
SetCampaignID(cid).
SetStageID(request.StageId).
SetVariantID(request.VariantId).
SetIsEnd(request.IsEnd).
Save(ctx)
if err != nil {
return nil, err
}
} else {
_, err = execution.Update().
SetStageID(request.StageId).
SetVariantID(request.VariantId).
SetIsEnd(request.IsEnd).
Save(ctx)
if err != nil {
return nil, err
}
}
return &models.UpdateExecutionResponse{
Status: true,
}, nil }
in this function i want to also update a SetCompletedAt field which the executor has, how can i do that?
To update the CompletedAt field conditionally (e.g. only when IsEnd == true), you can call .SetCompletedAt(time.Now()) during Create or Update. Assuming CompletedAt is defined as: goCopyEditfield.Time(“completed_at”). Optional(). Nillable(),
✅ Updated code with SetCompletedAt: goCopyEditnow := time.Now()
if err != nil { // record not found — create new create := svc.client.Executor.Create(). SetUserID(uid). SetCampaignID(cid). SetStageID(request.StageId). SetVariantID(request.VariantId). SetIsEnd(request.IsEnd)
if request.IsEnd {
create = create.SetCompletedAt(now)
}
_, err = create.Save(ctx)
if err != nil {
return nil, err
} } else {
// record found — update it
update := execution.Update().
SetStageID(request.StageId).
SetVariantID(request.VariantId).
SetIsEnd(request.IsEnd)
if request.IsEnd {
update = update.SetCompletedAt(now)
}
_, err = update.Save(ctx)
if err != nil {
return nil, err
} }
🧠 Notes:
.SetCompletedAt(…) requires a time.Time value.
You must check request.IsEnd to decide when to set it.
Optional() and Nillable() ensure the field can be omitted or overwritten later.
Want CompletedAt to be set only the first time IsEnd becomes true? That needs a bit more logic — let me know.
type GetExecutionInfoResponse struct { userid string json:”user_id” campaignid string json:”campaign_id” stageid string json:”stage_id” stageToVariantMapping }
i need stageToVariantMapping for this struct where stage data looks like this in json
[ { “name”: “Sign”, “slug”: “sign”, “variants”: [ { “name”: “A”, “content”: “{"content":[{"type":"Heading","props":{"text":"Campaign title","variant":"h3","id":"Heading-f78ab1e2-292b-47c2-9aa5-7f6c7c7f8c9d","gutterBottom":20}},{"type":"TwoColumnLayout","props":{"id":"TwoColumnLayout-378a270e-23c4-4621-8bf2-6a0ee33fae47","spacing":4}}],"root":{"props":{"title":""}},"zones":{"TwoColumnLayout-378a270e-23c4-4621-8bf2-6a0ee33fae47:column-one":[{"type":"Image","props":{"image":"","id":"Image-c72278b8-3089-4181-ba25-fc9ef485e06e"}},{"type":"Space","props":{"value":30,"id":"Space-8b39d869-5b73-4236-bf1b-a598811caf37"}},{"type":"Heading","props":{"text":"Enter campaign short description","variant":"h5","id":"Heading-5a9b2d7f-bb78-4c7e-8d69-b4f8b26838ef","gutterBottom":20}},{"props":{"id":"RichText-199a7211-4ae4-44be-9b9a-d95a1f807a14","state":{"root":{"children":[{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"Decision Makers:","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"Enter name of decision maker","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":1},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"Enter name of decision maker","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":2},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"Enter name of decision maker","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":3}],"direction":"ltr","format":"","indent":0,"type":"list","version":1,"listType":"number","start":1,"tag":"ol"},{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"What is the issue?","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"[Briefly describe the issue. Example: The ongoing deforestation of the Western Ghats threatens biodiversity and local communities, with illegal logging and urbanization escalating the crisis.]","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"Why is it important?","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"[Highlight why it matters. Example: The Western Ghats is a global biodiversity hotspot. Continued destruction will result in loss of endangered species, environmental damage, and risk to the livelihoods of indigenous populations.]","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"What are we demanding?","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"[State clear demands. Example: We call for an immediate halt to deforestation, stronger enforcement of environmental laws, and a community-driven conservation plan to protect the region.]","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"Sources","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"[Source 1: Link]","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":1},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"[Source 2: Link]","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":2},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"[Source 3: Link]","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":3}],"direction":"ltr","format":"","indent":0,"type":"list","version":1,"listType":"number","start":1,"tag":"ol"},{"children":[],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1}],"direction":"ltr","format":"","indent":0,"type":"root","version":1}}},"type":"RichText"}],"TwoColumnLayout-378a270e-23c4-4621-8bf2-6a0ee33fae47:column-two":[{"type":"Sign","props":{"items":[],"email":"","sign_button_id":"campaign-sign-button","view":"sign form","post_sign_message":"You have already signed the petition","post_sign_button_text":"Share this campaign","id":"Sign-3ee78fa4-ebce-4782-aba0-e60d55d06066"}}]}}” }, { “name”: “B”, “content”: “{"content":[{"type":"TwoColumnLayout","props":{"id":"TwoColumnLayout-47ffc55a-4b50-4220-839f-a0e9344cc2b6"}}],"root":{"props":{}},"zones":{"TwoColumnLayout-47ffc55a-4b50-4220-839f-a0e9344cc2b6:column-one":[{"type":"Button","props":{"label":"Button","url":"","button_id":"campaign-button","type":"url","open_in_new_tab":"no","id":"Button-ecad1af6-fde7-4177-8efe-344d4fc9e076"}}],"TwoColumnLayout-47ffc55a-4b50-4220-839f-a0e9344cc2b6:column-two":[{"type":"Paragraph","props":{"text":"Lorem ipsum dolor sit amet, consectetur adipiscing elit. Quisque at sagittis odio. Vestibulum urna augue, pellentesque ac sodales id, egestas lacinia nunc. Nulla non ullamcorper sapien. In turpis augue, dapibus sit amet interdum porttitor, ultrices at ipsum. Cras non nibh et mauris elementum maximus quis non urna. Nulla sapien purus, ornare a est ac, tempor tristique mi. Vivamus iaculis turpis eu nibh tincidunt, vitae gravida magna iaculis. Morbi semper a urna vitae hendrerit. Proin placerat velit fringilla commodo lacinia. Integer nulla libero, ultricies non lacinia quis, imperdiet ac justo. Nam eget commodo nulla. Duis ut odio nec velit feugiat fringilla. Duis ut dolor at nunc pulvinar cursus. Ut eu vestibulum diam. Nunc pharetra purus vitae ligula gravida, nec rutrum tortor aliquet. Aenean at dui vitae urna dignissim sodales id eget dui. In condimentum bibendum lectus, vitae tristique libero ornare id. Sed vitae justo ante. Nullam iaculis metus dictum lobortis egestas. ","variant":"body1","id":"Paragraph-6b70a5de-bdd6-4a54-9ab2-fafa6e15697a"}},{"type":"Heading","props":{"text":"Heading","variant":"h1","id":"Heading-48dd5aa9-2119-4ee9-8f08-d1a58463b4fb"}}]}}” } ], “description”: “”, “defaultVariant”: “A” }, { “name”: “Share”, “slug”: “share”, “variants”: [ { “name”: “A”, “content”: “{"content":[{"type":"TwoColumnLayout","props":{"id":"TwoColumnLayout-ea63168f-5089-404c-82f4-5e0363a64b5e","spacing":4}}],"root":{"props":{}},"zones":{"TwoColumnLayout-ea63168f-5089-404c-82f4-5e0363a64b5e:column-one":[{"type":"Image","props":{"image":"","id":"Image-ab42a69d-5bc1-41f8-b70b-cc50ce3be862"}},{"type":"Space","props":{"value":20,"id":"Space-032c5640-1a43-4a38-8fc3-1bfbe7687357"}},{"type":"Button","props":{"label":"Donate","url":"","button_id":"campaign-button","type":"next stage","id":"Button-e7952f87-ddc1-4b2b-a6e0-43448c9f912a"}}],"TwoColumnLayout-ea63168f-5089-404c-82f4-5e0363a64b5e:column-two":[{"type":"Heading","props":{"text":"Join Us in Making a Difference!","variant":"h4","id":"Heading-8dd6ea77-4ab8-4eaa-8473-cfca5c65f404","gutterBottom":0}},{"props":{"id":"RichText-2e9a3683-5e63-44e1-89c8-5a5b6a1d2542","state":{"root":{"children":[{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"We’re excited to announce our latest campaign, [Campaign Name], aimed at [brief description of the campaign goal]. But we can’t do this alone — we need YOU to help us spread the word and make a lasting impact!","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"Here’s how you can help:","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"Share our message","type":"text","version":1},{"detail":0,"format":0,"mode":"normal","style":"","text":": Forward this email or share our social media posts with your friends, family, and community.","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":1},{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"Be a catalyst for change","type":"text","version":1},{"detail":0,"format":0,"mode":"normal","style":"","text":": Every person you refer strengthens the movement, helping us reach our goal and bring about meaningful change.","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":2},{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"Make a change","type":"text","version":1},{"detail":0,"format":0,"mode":"normal","style":"","text":": Together, we can [highlight the ultimate goal of the campaign].","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"listitem","version":1,"value":3}],"direction":"ltr","format":"","indent":0,"type":"list","version":1,"listType":"number","start":1,"tag":"ol"},{"children":[{"detail":0,"format":1,"mode":"normal","style":"","text":"Take Action Now","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1},{"children":[{"detail":0,"format":0,"mode":"normal","style":"","text":"The more you share, the bigger the difference we can make together!","type":"text","version":1}],"direction":"ltr","format":"","indent":0,"type":"paragraph","version":1}],"direction":"ltr","format":"","indent":0,"type":"root","version":1}}},"type":"RichText"},{"type":"Space","props":{"value":20,"id":"Space-4031ba9e-13bc-4b36-b736-2b1c49c34af1"}},{"type":"Share","props":{"link":{"enable":"yes","button_id":"campaign-share-link"},"twitter":{"enable":"yes","message":"","button_id":"campaign-share-twitter"},"facebook":{"enable":"yes","message":"","button_id":"campaign-share-facebook"},"whatsapp":{"enable":"yes","message":"","button_id":"campaign-share-whatsapp"},"id":"Share-dafd4eba-df8d-448a-a52f-5c1795e2a0bb"}}]}}” } ], “description”: “”, “defaultVariant”: “A” } ]
To model this properly in Go, you need stageToVariantMapping to represent the mapping between each stage (by slug or name) and the variant chosen (e.g. “A”, “B”). Based on the sample JSON, the structure is an array of stages, each with a list of variants. You can define stageToVariantMapping like this: goCopyEdittype stageToVariantMapping map[string]string
This would map stageSlug to variantName, e.g.: jsonCopyEdit{ “sign”: “A”, “share”: “B” }
Then your full struct becomes:
goCopyEdittype GetExecutionInfoResponse struct {
UserID string json:"user_id"
CampaignID string json:"campaign_id"
StageID string json:"stage_id"
Mapping stageToVariantMapping json:"stage_to_variant_mapping"
}
If you prefer to inline the mapping directly into the struct under a specific field name (stage_to_variant_mapping), you’re good with that naming.
If you expect to marshal/unmarshal from JSON often, define it like this:
goCopyEdittype GetExecutionInfoResponse struct {
UserID string json:"user_id"
CampaignID string json:"campaign_id"
StageID string json:"stage_id"
StageToVariantMapping map[string]string json:"stage_to_variant_mapping"
}
Let me know if you need this parsed directly from that stage/variant JSON blob — that would require a more complex structure.
sql query to select campaign where id is x
Straightforward SQL: sqlCopyEditSELECT * FROM campaigns WHERE id = ?;
If you’re using PostgreSQL and the id is a UUID: sqlCopyEditSELECT * FROM campaigns WHERE id = ‘your-uuid-here’;
Replace ‘your-uuid-here’ or ? with the actual ID or parameter binding depending on your context (e.g., Go’s db.QueryRow(…)). Let me know if you need filtering on other fields or joins.
concatanate these three strings cid, err := uuid.Parse(request.CampaignId) if err != nil { return nil, err }
To concatenate the request.CampaignId with another string or two others, you do it before parsing. For example: goCopyEditfull := request.CampaignId + “-extra-part1” + “-extra-part2” cid, err := uuid.Parse(full) if err != nil { return nil, err }
But if you’re trying to log, trace, or build a compound string elsewhere, here’s a form with fmt.Sprintf: goCopyEditcombined := fmt.Sprintf(“%s-%s-%s”, request.CampaignId, “extra1”, “extra2”)
Let me know your use case — parsing a UUID after concatenation usually won’t work unless the result is a valid UUID.
variantAssignments := fmt.Sprint(“%s%s%s”, uid, cid, sid)
hash it
You’re using fmt.Sprint incorrectly — it doesn’t support format verbs like %s. Use fmt.Sprintf instead: goCopyEditvariantAssignments := fmt.Sprintf(“%s%s%s”, uid, cid, sid)
To hash it (e.g. with SHA256): goCopyEditimport ( “crypto/sha256” “encoding/hex” )
hash := sha256.Sum256([]byte(variantAssignments)) hashed := hex.EncodeToString(hash[:])
Now hashed holds your final hash string. Let me know if you want a shorter hash (e.g. using MD5 or truncating).
consider this function executing an entgo query
func (svc executorService) GetExecutionInfo( ctx context.Context, request *models.GetExecutionInfoRequest, ) (models.GetExecutionInfoResponse, error) {
uid, err := uuid.Parse(request.UserId)
if err != nil {
return nil, err
}
cid, err := uuid.Parse(request.CampaignId)
if err != nil {
return nil, err
}
sid, err := uuid.Parse(request.StageId)
if err != nil {
return nil, err
}
execution, err := svc.client.Executor.Query().Where(
executor.And(
executor.CampaignIDEQ(cid),
executor.UserID(uid),
)).First(ctx)
if err != nil {
return nil, err
}
return &models.GetExecutionInfoResponse{}, nil
}
and these models for request and response:
type GetExecutionInfoRequest struct { UserId string json:”user_id” CampaignId string json:”campaign_id,omitempty” StageId string json:”stage_id,omitempty” }
type GetExecutionInfoResponse struct { UserId string json:”user_id” CampaignId string json:”campaign_id” StageToVariantMapping map[string]*[]AssignedVariant json:”stage_variant_map” }
type AssignedVariant struct { StageId string json:”stage_id” VariantId string json:”variant_id” IsEnd bool json:”is_end” CompletedAt time.Time json:”completed_at” }
and this being the schema for the executor:
// Fields of the CampaignJourney. func (Executor) Fields() []ent.Field { return []ent.Field{ field.UUID(“user_id”, uuid.UUID{}).Default(uuid.New).Immutable(), field.UUID(“campaign_id”, uuid.UUID{}).Default(uuid.New).Immutable(), field.String(“stage_id”), field.String(“variant_id”), field.Bool(“is_end”), field.Time(“completed_at”).Default(time.Now).Optional(), } }
here’s what i want for the return value of the query function
for every result in the “execution”, var first construct a hash of cid, uid, and sid thusly
variantAssignments := fmt.Sprintf("%s%s%s", uid, cid, sid)
hash := sha256.Sum256([]byte(variantAssignments))
hashed := hex.EncodeToString(hash[:])
then create a map where the hashed is key and AssignedVariant the value populated by fields in the currently iterated result
then return according to the getexecutioninfo response model filled in
Here’s how you can adapt your GetExecutionInfo function to fulfill that logic: goCopyEditfunc (svc executorService) GetExecutionInfo( ctx context.Context, request *models.GetExecutionInfoRequest, ) (models.GetExecutionInfoResponse, error) {
uid, err := uuid.Parse(request.UserId)
if err != nil {
return nil, err
}
cid, err := uuid.Parse(request.CampaignId)
if err != nil {
return nil, err
}
sid, err := uuid.Parse(request.StageId)
if err != nil {
return nil, err
}
executions, err := svc.client.Executor.Query().
Where(
executor.And(
executor.CampaignIDEQ(cid),
executor.UserID(uid),
)).
All(ctx)
if err != nil {
return nil, err
}
stageToVariantMapping := make(map[string]*[]models.AssignedVariant)
for _, e := range executions {
// hash = SHA256(campaignId + userId + stageId)
variantAssignments := fmt.Sprintf("%s%s%s", cid, uid, e.StageID)
hash := sha256.Sum256([]byte(variantAssignments))
hashed := hex.EncodeToString(hash[:])
variant := models.AssignedVariant{
StageId: e.StageID,
VariantId: e.VariantID,
IsEnd: e.IsEnd,
CompletedAt: e.CompletedAt,
}
// accumulate per hash
if list, ok := stageToVariantMapping[hashed]; ok {
*list = append(*list, variant)
} else {
stageToVariantMapping[hashed] = &[]models.AssignedVariant{variant}
}
}
resp := &models.GetExecutionInfoResponse{
UserId: request.UserId,
CampaignId: request.CampaignId,
StageToVariantMapping: stageToVariantMapping,
}
return resp, nil }
Highlights:
Uses All(ctx) to fetch all matching Executor records.
Hashes cid, uid, and e.StageID using SHA256 per record.
Builds AssignedVariant and buckets into a map keyed by hash.
Response model is filled as per your spec.
Let me know if the mapping should only include the hash for the specific StageId passed in the request.
here if both campaign and stage ids are present use both otherwise just use user and campaign ids
uid, err := uuid.Parse(request.UserId)
if err != nil {
return nil, err
}
cid, err := uuid.Parse(request.CampaignId)
if err != nil {
return nil, err
}
sid, err := uuid.Parse(request.StageId)
if err != nil {
return nil, err
}
execution, err := svc.client.Executor.Query().Where( executor.And( executor.UserID(uid), )).All(ctx)
if err != nil {
return nil, err
} # 用户问题 Here's the corrected conditional query logic: goCopyEdituid, err := uuid.Parse(request.UserId) if err != nil {
return nil, err }
cid, err := uuid.Parse(request.CampaignId) if err != nil { return nil, err }
var ( executions []*ent.Executor )
if request.StageId != “” { sid, err := uuid.Parse(request.StageId) if err != nil { return nil, err }
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
executor.StageIDEQ(sid.String()),
),
).All(ctx)
} else { executions, err = svc.client.Executor.Query().Where( executor.And( executor.UserID(uid), executor.CampaignIDEQ(cid), ), ).All(ctx) }
if err != nil { return nil, err }
Notes:
Parses sid only if request.StageId is non-empty.
Includes StageIDEQ only when applicable.
Assumes StageID is stored as a string in the schema, hence sid.String().
This keeps query constraints tight without overcomplicating the logic.
stageid is an in64 so pls fix and return entire block again
Got it. Here’s the corrected block with StageID as int64: goCopyEdituid, err := uuid.Parse(request.UserId) if err != nil { return nil, err }
cid, err := uuid.Parse(request.CampaignId) if err != nil { return nil, err }
var ( executions []*ent.Executor )
if request.StageId != “” { sid, err := strconv.ParseInt(request.StageId, 10, 64) if err != nil { return nil, err }
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
executor.StageIDEQ(sid),
),
).All(ctx)
} else { executions, err = svc.client.Executor.Query().Where( executor.And( executor.UserID(uid), executor.CampaignIDEQ(cid), ), ).All(ctx) }
if err != nil { return nil, err }
Let me know if you want to handle cases where only StageId is provided but not CampaignId.
why does it say declared and not used executions ?
You’re seeing declared and not used: executions because after fetching executions, the variable isn’t used anywhere in the rest of your function. Go is strict about unused variables. You need to either use the executions slice (e.g. to populate the response), or remove it if it’s not needed. Here’s an updated version that uses executions to build the response, based on your earlier structure: goCopyEditresp := &models.GetExecutionInfoResponse{ UserId: uid.String(), CampaignId: cid.String(), StageToVariantMapping: map[string]*[]models.AssignedVariant{}, }
for _, ex := range executions { // construct hash key variantAssignments := fmt.Sprintf(“%s%s%d”, uid, cid, ex.StageID) hash := sha256.Sum256([]byte(variantAssignments)) hashed := hex.EncodeToString(hash[:])
// build AssignedVariant
variant := models.AssignedVariant{
StageId: strconv.FormatInt(ex.StageID, 10),
VariantId: ex.VariantID,
IsEnd: ex.IsEnd,
CompletedAt: ex.CompletedAt,
}
// append to map
if resp.StageToVariantMapping[hashed] == nil {
resp.StageToVariantMapping[hashed] = &[]models.AssignedVariant{}
}
*resp.StageToVariantMapping[hashed] = append(*resp.StageToVariantMapping[hashed], variant) }
return resp, nil
Now executions is fully used to populate your response. This eliminates the warning.
i meant in this block
var (
executions []*ent.Executor
)
if request.StageId != "" {
sid, err := strconv.ParseInt(request.StageId, 10, 64)
if err != nil {
return nil, err
}
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
executor.StageIDEQ(sid),
),
).All(ctx)
} else {
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
),
).All(ctx)
} # 用户问题 Ah—you're missing an else if err != nil after the query blocks. The Go compiler sees a potential code path where err is assigned but never checked, which causes the executions variable to appear unused if the function exits early due to an error. Fix it like this: goCopyEditvar (
executions []*ent.Executor )
if request.StageId != “” { sid, err := strconv.ParseInt(request.StageId, 10, 64) if err != nil { return nil, err }
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
executor.StageIDEQ(sid),
),
).All(ctx)
if err != nil {
return nil, err
}
} else { executions, err = svc.client.Executor.Query().Where( executor.And( executor.UserID(uid), executor.CampaignIDEQ(cid), ), ).All(ctx) if err != nil { return nil, err } }
Each assignment to executions is now immediately followed by an err check—Go is happy.
it still says declred and not used execitions
Good catch—this means you’re correctly assigning executions, but you’re not using it anywhere later in the function. So Go is right: it’s declared and assigned but not used. To fix this, you must either:
Use executions (as intended) to construct your GetExecutionInfoResponse,
Or if you’re still building up to that and want to silence the warning temporarily for testing, just use it like this for now:
goCopyEditfmt.Println(len(executions)) // temporary line to satisfy the compiler
But assuming you’re about to iterate over executions, this is the expected next step: goCopyEditstageMap := make(map[string]*[]AssignedVariant)
for _, e := range executions { // generate hash input := fmt.Sprintf(“%s%s%d”, uid, cid, e.StageID) hash := sha256.Sum256([]byte(input)) hashed := hex.EncodeToString(hash[:])
// assign variant
variant := AssignedVariant{
StageId: strconv.FormatInt(e.StageID, 10),
VariantId: e.VariantID,
IsEnd: e.IsEnd,
CompletedAt: e.CompletedAt,
}
if _, ok := stageMap[hashed]; !ok {
stageMap[hashed] = &[]AssignedVariant{}
}
*stageMap[hashed] = append(*stageMap[hashed], variant) }
return &models.GetExecutionInfoResponse{ UserId: request.UserId, CampaignId: request.CampaignId, StageToVariantMapping: stageMap, }, nil
Now executions is actively used, and the error will go away.
if request.StageId != “”
stageId is int, fix
Right—StageId in your request model is declared as a string, but you want it as an int64. To fix cleanly:
✅ 1. Update the request model:
goCopyEdittype GetExecutionInfoRequest struct {
UserId string json:"user_id"
CampaignId string json:"campaign_id,omitempty"
StageId int64 json:"stage_id,omitempty" // ← now int64
}
✅ 2. Check with a zero check instead of string empty: goCopyEditvar executions []*ent.Executor
if request.StageId != 0 { executions, err = svc.client.Executor.Query().Where( executor.And( executor.UserID(uid), executor.CampaignIDEQ(cid), executor.StageIDEQ(request.StageId), ), ).All(ctx) } else { executions, err = svc.client.Executor.Query().Where( executor.And( executor.UserID(uid), executor.CampaignIDEQ(cid), ), ).All(ctx) }
That eliminates the unnecessary strconv.ParseInt and aligns with your schema, which uses int64 for StageID.
!= 0 are you sure? what if its negative number? i just want to check if its a valid number
Good catch. If you want to ensure StageId is a valid positive number (e.g. only query when it’s a meaningful ID), then explicitly check: goCopyEditif request.StageId > 0 { // use stage id } else { // don’t use stage id }
Why this works:
0 and negative values are typically invalid or default placeholders in APIs.
This ensures you only query by StageId when it’s actually set to something useful.
Let me know if you want to enforce that via validation earlier in the call chain too.
this query is complaining about using int (sid) as a string executions, err = svc.client.Executor.Query().Where( executor.And( executor.UserID(uid), executor.CampaignIDEQ(cid), executor.StageIDEQ(sid), ), ).All(ctx)
Your Ent schema defines stage_id as a string: goCopyEditfield.String(“stage_id”)
But you’re trying to filter it with an int64 (sid), which causes a type mismatch. ✅ Fix: Convert sid to a string: goCopyEditexecutor.StageIDEQ(strconv.FormatInt(sid, 10))
Updated query snippet: goCopyEditexecutions, err = svc.client.Executor.Query().Where( executor.And( executor.UserID(uid), executor.CampaignIDEQ(cid), executor.StageIDEQ(strconv.FormatInt(sid, 10)), ), ).All(ctx)
Let me know if you want to change the schema instead (e.g. make stage_id an int64)—but based on current setup, this conversion is correct.
we now have all results in
var (executions []*ent.Executor)
where each row has the following data UserId string json:”user_id” CampaignId string json:”campaign_id” StageId int64 json:”stage_id” VariantId string json:”variant_id” IsEnd bool json:”is_end” CompletedAt time.Time json:”completed_at”
now calculate the following
i need to know how many and which users completed a variant for a particular stage, design a query and store this data in an aptly designed variable
To determine which users completed a variant for a particular stage, you need:
is_end == true (indicates completion)
grouped by stage_id
capturing both user IDs and variant IDs
✅ Step 1: Define the result structure goCopyEdittype StageVariantCompletion struct { StageID string VariantID string CompletedBy []uuid.UUID }
Use string for StageID to match Ent schema (if it’s stored as string). Adjust to int64 if you change schema.
✅ Step 2: Create a map[stage_id+variant_id] → users goCopyEditcompletions := map[string]*StageVariantCompletion{}
for _, exec := range executions { if exec.IsEnd { key := fmt.Sprintf(“%s|%s”, exec.StageID, exec.VariantID)
if _, ok := completions[key]; !ok {
completions[key] = &StageVariantCompletion{
StageID: exec.StageID,
VariantID: exec.VariantID,
CompletedBy: []uuid.UUID{},
}
}
completions[key].CompletedBy = append(completions[key].CompletedBy, exec.UserID)
} }
✅ Optional: Flatten to slice if needed goCopyEditvar results []StageVariantCompletion for _, c := range completions { results = append(results, *c) }
Let me know if you want counts per stage/variant instead, or need a nested map (map[stageID][variantID] → []users).
what does flattening to slice do?
Flattening to a slice means converting the data from a more complex structure (in this case, a map) into a simpler, linear structure — in this case, a slice of StageVariantCompletion objects. Explanation of “Flattening” In your case, you’re using a map to collect data, with each key being a combination of stage_id and variant_id. Each value in the map is a StageVariantCompletion struct that holds the stage, variant, and a list of users who have completed that variant. Once you’ve populated the map, flattening is the process of converting the map into a slice of these StageVariantCompletion structs. A slice is a simple, ordered collection of values, which is often easier to iterate over or return from a function. Example:
Before Flattening: A map[string]*StageVariantCompletion
goCopyEditcompletions := map[string]*StageVariantCompletion{ “stage1|variantA”: &StageVariantCompletion{ StageID: “stage1”, VariantID: “variantA”, CompletedBy: []uuid.UUID{uuid.New(), uuid.New()}, }, “stage2|variantB”: &StageVariantCompletion{ StageID: “stage2”, VariantID: “variantB”, CompletedBy: []uuid.UUID{uuid.New()}, }, }
Flattening to Slice:
goCopyEditvar results []StageVariantCompletion for _, c := range completions { results = append(results, *c) }
After flattening, results will look like this: goCopyEditresults := []StageVariantCompletion{ { StageID: “stage1”, VariantID: “variantA”, CompletedBy: []uuid.UUID{uuid.New(), uuid.New()}, }, { StageID: “stage2”, VariantID: “variantB”, CompletedBy: []uuid.UUID{uuid.New()}, }, }
Why Flatten?
Easier to Return: You can return a slice from a function directly, but maps are not as common for return types unless you specifically want key-value pairs.
Better for Iteration: Slices are simpler to iterate over using for-range loops or any other loop structure.
Sorting: If you need to sort the data (e.g., by stage or variant), it’s simpler to sort a slice than a map.
In summary, flattening makes it easier to work with the data in a linear structure like a slice.
Possible to add a CompletionRate field? it would be a float denoting the %age ratio of stage completions vs incomplete
Yes, you can add a CompletionRate field to your StageVariantCompletion struct to calculate the percentage of stage completions versus incompletions. To calculate the completion rate, you would need two pieces of data:
The number of users who have completed the stage/variant combination (this is the CompletedBy slice).
The total number of users that could potentially complete this stage/variant combination (you could get this from your executions or another data source that provides the total users for the specific stage/variant).
Steps to Add CompletionRate:
Calculate the total number of users who could complete the variant. This may come from your executions or another source.
Calculate the number of users who have actually completed the stage/variant (i.e., the length of CompletedBy).
Compute the completion rate as: CompletionRate=Number of completionsTotal users×100\text{CompletionRate} = \frac{\text{Number of completions}}{\text{Total users}} \times 100CompletionRate=Total usersNumber of completions×100
Updated Example: Here’s how you might implement this:
Modify the StageVariantCompletion struct to include the CompletionRate:
goCopyEdittype StageVariantCompletion struct {
StageID string json:"stage_id"
VariantID string json:"variant_id"
CompletedBy []uuid.UUID json:"completed_by"
CompletionRate float64 json:"completion_rate"
}
Calculate the CompletionRate:
Once you’ve built the StageVariantCompletion map and flattened it, you can calculate the completion rate for each entry. You’ll need the total number of users expected to complete a particular stage/variant combination. Let’s assume you already have the necessary data for calculating the total possible completions. For example, this could come from your executions or be passed into the function as an argument. Example of Calculation: goCopyEdit// Assuming totalCompletions is the total number of users expected to complete the variant totalCompletions := float64(100) // Example total completions for a stage/variant
var results []StageVariantCompletion for _, completion := range completions { // Calculate completion rate completedCount := float64(len(completion.CompletedBy)) if totalCompletions > 0 { completion.CompletionRate = (completedCount / totalCompletions) * 100 } else { completion.CompletionRate = 0 } results = append(results, *completion) }
Full Example:
Here’s a more complete implementation, based on what you’ve described, adding the CompletionRate:
goCopyEdittype StageVariantCompletion struct {
StageID string json:"stage_id"
VariantID string json:"variant_id"
CompletedBy []uuid.UUID json:"completed_by"
CompletionRate float64 json:"completion_rate"
}
func calculateCompletionRate(executions []ent.Executor, totalCompletions int) ([]StageVariantCompletion, error) { completions := make(map[string]StageVariantCompletion)
for _, exec := range executions {
key := fmt.Sprintf("%d|%s", exec.StageId, exec.VariantId)
// Initialize the completion entry if not already in the map
if _, exists := completions[key]; !exists {
completions[key] = &StageVariantCompletion{
StageID: fmt.Sprintf("%d", exec.StageId),
VariantID: exec.VariantId,
CompletedBy: []uuid.UUID{},
}
}
// Append to the list of users who completed this variant
completions[key].CompletedBy = append(completions[key].CompletedBy, exec.UserID)
}
// Flatten the map to a slice and calculate completion rate
var results []StageVariantCompletion
for _, completion := range completions {
completedCount := float64(len(completion.CompletedBy))
// Calculate completion rate
if totalCompletions > 0 {
completion.CompletionRate = (completedCount / float64(totalCompletions)) * 100
} else {
completion.CompletionRate = 0
}
results = append(results, *completion)
}
return results, nil }
Explanation:
| completions is a map where each key is a combination of StageId | VariantId and the value is a StageVariantCompletion struct holding the list of users who completed that variant. |
The completion rate is calculated based on the number of completions versus the total number of users who could potentially complete the task.
We check if totalCompletions is greater than 0 to avoid division by zero.
Notes:
You need to determine how you are getting the total number of users who could complete each stage/variant (which I used as totalCompletions).
CompletionRate will be a percentage value between 0 and 100.
This should provide a good start for adding and calculating the completion rate for each stage/variant combination!
cannot use *completion (variable of type models.StageVariantCompletion) as *models.StageVariantCompletion value in argument to append compiler (IncompatibleAssign)
The error you’re seeing: rustCopyEditcannot use *completion (variable of type models.StageVariantCompletion) as *models.StageVariantCompletion value in argument to append
means you’re trying to append a StageVariantCompletion by reference (*completion) to a slice that expects values of type StageVariantCompletion, not pointers. ✅ Fix Make sure the slice results is declared as a slice of values, and you’re appending the value directly (not a pointer): goCopyEditvar results []StageVariantCompletion for _, completion := range completions { // Compute CompletionRate, etc…
results = append(results, *completion) // <- This is correct if results is []StageVariantCompletion }
But if you intended results to be a slice of pointers, like []StageVariantCompletion, then you should not dereference: goCopyEditvar results []StageVariantCompletion for _, completion := range completions { // Compute CompletionRate, etc…
results = append(results, completion) // <- No * }
TL;DR:
append(results, *completion) → use if results is of type []StageVariantCompletion
append(results, completion) → use if results is of type []*StageVariantCompletion
Pick one.
i rewrote the function with my own inputs, and instructions for you (–> prefix), please fix:
func calculateCompletionRate(executions []ent.Executor, totalCompletions int) ([]models.StageVariantCompletion, error) { completions := make(map[string]*models.StageVariantCompletion)
for _, exec := range executions {
key := fmt.Sprintf("%d|%s", exec.StageID, exec.VariantID)
// Initialize the completion entry if not already in the map
if _, exists := completions[key]; !exists {
completions[key] = &models.StageVariantCompletion{
StageID: fmt.Sprintf("%d", exec.StageID),
VariantID: exec.VariantID,
CompletedBy: []uuid.UUID{},
}
}
// Append to the list of users who completed this variant
if exec.IsEnd == true { --> we're only adding to completions if this is true
completions[key].CompletedBy = append(completions[key].CompletedBy, exec.UserID)
}
}
// Flatten the map to a slice and calculate completion rate
var results []*models.StageVariantCompletion
for _, completion := range completions {
completedCount := float64(len(completion.CompletedBy)) --> this is wrong, completedCount is the number of executions that have the isEnd true and completedBy timestamp present
// Calculate completion rate
if totalCompletions > 0 { --> this need not be a parameter at all, remove the param and use completedCount here
completion.CompletionRate = (completedCount / float64(totalCompletions)) * 100
} else {
completion.CompletionRate = 0
}
results = append(results, completion)
}
return results, nil } # 用户问题 Here’s your corrected function with the changes you've specified:
✅ Removed the totalCompletions param.
✅ Computed completedCount based on IsEnd == true && CompletedAt != nil.
✅ Calculated completion rate per group using actual total (completed + not completed) executions for that (StageID, VariantID) pair.
goCopyEditfunc calculateCompletionRate(executions []ent.Executor) ([]models.StageVariantCompletion, error) { completions := make(map[string]*models.StageVariantCompletion) counts := make(map[string]int) // total executions per (stage, variant)
for _, exec := range executions {
key := fmt.Sprintf("%d|%s", exec.StageID, exec.VariantID)
if _, exists := completions[key]; !exists {
completions[key] = &models.StageVariantCompletion{
StageID: fmt.Sprintf("%d", exec.StageID),
VariantID: exec.VariantID,
CompletedBy: []uuid.UUID{},
}
}
// Track total executions for this (stage, variant)
counts[key]++
if exec.IsEnd && !exec.CompletedAt.IsZero() {
completions[key].CompletedBy = append(completions[key].CompletedBy, exec.UserID)
}
}
// Build results with completion rate
var results []*models.StageVariantCompletion
for key, completion := range completions {
total := counts[key]
completed := float64(len(completion.CompletedBy))
if total > 0 {
completion.CompletionRate = (completed / float64(total)) * 100
} else {
completion.CompletionRate = 0
}
results = append(results, completion)
}
return results, nil }
Let me know if you want to round the percentage or express it as a decimal (e.g. 0.87 instead of 87.0).
trying to call completions, err = calculateCompletionRate(executions) where var ( executions []ent.Executor ) gives error cannot use calculateCompletionRate(executions) (value of type []models.StageVariantCompletion) as map[string]*models.StageVariantCompletion value in assignment compiler
That error means you’re assigning the return value of calculateCompletionRate (a []models.StageVariantCompletion) to a variable completions that’s typed as map[string]models.StageVariantCompletion. They are fundamentally different types. Fix: Update your assignment target like so: goCopyEditvar ( executions []ent.Executor completions []models.StageVariantCompletion )
completions, err = calculateCompletionRate(executions) if err != nil { return nil, err }
Or if you only need completions: Drop the map type entirely and do: goCopyEditcompletions, err := calculateCompletionRate(executions)
Let me know what you plan to do with the completions after — might need to adjust depending on the output format you want.
add path analysis support func (svc executorService) GetExecutionStats(ctx context.Context, request *models.GetExecutionStatsRequest) (models.GetExecutionStatsResponse, error) {
// Query executor table for campaign-level or stage-level stats
uid, err := uuid.Parse(request.UserId)
if err != nil {
return nil, err
}
cid, err := uuid.Parse(request.CampaignId)
if err != nil {
return nil, err
}
var (
executions []*ent.Executor
completions []*models.StageVariantCompletion
)
if request.StageId > 0 {
sid := strconv.FormatInt(request.StageId, 10)
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
executor.StageIDEQ(sid),
),
).All(ctx)
if err != nil {
return nil, err
}
} else {
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
),
).All(ctx)
if err != nil {
return nil, err
}
}
if err != nil {
return nil, err
}
//Calculate completion rates by variant
completions, err = calculateCompletionRate(executions)
//Support path analysis (stage→stage transitions)
panic("impl") } # 用户问题 To add path analysis (i.e. understanding stage→stage transitions), we need to group executions by user and order them by timestamp. Then for each user, record each (from_stage → to_stage) pair. Updated GetExecutionStats with path analysis support: I'll insert path analysis after completion rate calc: goCopyEditfunc (svc *executorService) GetExecutionStats(ctx context.Context, request *models.GetExecutionStatsRequest) (*models.GetExecutionStatsResponse, error) {
uid, err := uuid.Parse(request.UserId)
if err != nil {
return nil, err
}
cid, err := uuid.Parse(request.CampaignId)
if err != nil {
return nil, err
}
var (
executions []*ent.Executor
completions []*models.StageVariantCompletion
)
if request.StageId > 0 {
sid := strconv.FormatInt(request.StageId, 10)
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
executor.StageIDEQ(sid),
),
).Order(ent.Asc("completed_at")).All(ctx)
} else {
executions, err = svc.client.Executor.Query().Where(
executor.And(
executor.UserID(uid),
executor.CampaignIDEQ(cid),
),
).Order(ent.Asc("completed_at")).All(ctx)
}
if err != nil {
return nil, err
}
completions, err = calculateCompletionRate(executions)
if err != nil {
return nil, err
}
// Path analysis (stage→stage transitions)
type transition struct {
From string
To string
}
paths := make(map[transition]int)
// Group executions per user
userExecutions := make(map[uuid.UUID][]*ent.Executor)
for _, exec := range executions {
userExecutions[exec.UserID] = append(userExecutions[exec.UserID], exec)
}
for _, userExecs := range userExecutions {
// Sort per user just in case
sort.Slice(userExecs, func(i, j int) bool {
return userExecs[i].CompletedAt.Before(userExecs[j].CompletedAt)
})
for i := 0; i < len(userExecs)-1; i++ {
from := fmt.Sprintf("%d", userExecs[i].StageID)
to := fmt.Sprintf("%d", userExecs[i+1].StageID)
paths[transition{From: from, To: to}]++
}
}
// Flatten paths to model output
var pathResults []models.StageTransition
for trans, count := range paths {
pathResults = append(pathResults, models.StageTransition{
FromStageID: trans.From,
ToStageID: trans.To,
Count: count,
})
}
return &models.GetExecutionStatsResponse{
Completions: completions,
Paths: pathResults,
}, nil }
Required model updates:
You’ll need to define the path analysis struct if not already:
goCopyEdittype StageTransition struct {
FromStageID string json:"from_stage_id"
ToStageID string json:"to_stage_id"
Count int json:"count"
}
type GetExecutionStatsResponse struct {
Completions []*StageVariantCompletion json:"completions"
Paths []StageTransition json:"paths"
}
Let me know if you want to return raw sequences per user, or just aggregate transitions as above.
paths[*models.Transition{From: from, To: to}]++ has error invalid operation: cannot indirect models.Transition{…} (value of type models.Transition) compiler (InvalidIndirection) [235, 11]
You’re trying to use a pointer *models.Transition as a map key. Go doesn’t allow using pointers as map keys in this way because their identity is based on memory address, not value. ✅ Fix: Use models.Transition by value, not by pointer: goCopyEditpaths[models.Transition{From: from, To: to}]++
Full fix in context:
goCopyEdittype Transition struct {
From string json:"from"
To string json:"to"
}
paths := make(map[models.Transition]int)
…
paths[models.Transition{From: from, To: to}]++
This works because string fields make Transition a valid map key (comparable type). No need for *Transition.
sort.Slice(userExecs, func(i, j int) bool { sort is undefined
You’re likely missing the import for the sort package. Add this to the top of your file: goCopyEditimport “sort”
Then this will work: goCopyEditsort.Slice(userExecs, func(i, j int) bool { return userExecs[i].CompletedAt.Before(userExecs[j].CompletedAt) })
Go doesn’t import unused packages, so sort has to be explicitly declared to avoid the “undefined” error.
W fmt.Sprintf format %d has arg userExecs[i].StageID of wrong type string printf (default) in the line
from := fmt.Sprintf("%d", userExecs[i].StageID) # 用户问题 The error tells you that userExecs[i].StageID is already a string, so using %d (which expects an integer) is incorrect. ✅ Fix: Change %d to %s: goCopyEditfrom := fmt.Sprintf("%s", userExecs[i].StageID)
Or drop fmt.Sprintf entirely and assign directly: goCopyEditfrom := userExecs[i].StageID
Whichever keeps your code consistent.
same for this line key := fmt.Sprintf(“%d|%s”, exec.StageID, exec.VariantID)