feat: add chunk by query methods (#714) #1281

arashackdev · 2025-12-01T02:10:14Z

📑 Description

Addresses goravel/goravel#714 by adding chunk by methods.

This PR adds four new methods to the ORM:

Chunk
ChunkByID
ChunkByIDDesc: Exists in Laravel and is a low-hanging fruit to add here.
OrderedChunkByID: Exists in Laravel and is an enabler to the previous two methods.

codecov · 2025-12-01T02:12:07Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.56%. Comparing base (d029a42) to head (9be5fb6).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1281   +/-   ##
=======================================
  Coverage   68.56%   68.56%           
=======================================
  Files         264      264           
  Lines       15566    15566           
=======================================
  Hits        10673    10673           
  Misses       4430     4430           
  Partials      463      463

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arashackdev · 2025-12-01T02:34:52Z

~~I'm getting this error in actions' mockery (not related to mocks):~~

fatal: invalid reference: feature/chunk-by-queries
Error: Invalid status code: 128
    at ChildProcess.<anonymous> (/home/runner/work/_actions/stefanzweifel/git-auto-commit-action/v7/index.js:17:19)
    at ChildProcess.emit (node:events:508:28)
    at maybeClose (node:internal/child_process:1101:16)
    at ChildProcess._handle.onexit (node:internal/child_process:305:5) {
  code: 128
}
Error: Invalid status code: 128
    at ChildProcess.<anonymous> (/home/runner/work/_actions/stefanzweifel/git-auto-commit-action/v7/index.js:17:19)
    at ChildProcess.emit (node:events:508:28)
    at maybeClose (node:internal/child_process:1101:16)
    at ChildProcess._handle.onexit (node:internal/child_process:305:5)

~~Not sure how critical it is, would check and dive deeper if it becomes a blocker.~~

Edit: Fixed by regenerating mock file.

arashackdev · 2025-12-01T02:36:26Z

Review Ready.

hwbrzzl · 2025-12-01T02:38:11Z

Thanks @arashackdev, I'll check it.

Copilot

Pull request overview

This PR adds chunking functionality to the ORM Query interface, inspired by Laravel's chunking methods. These methods enable efficient processing of large datasets in batches, reducing memory consumption.

Introduces four new chunking methods: Chunk, ChunkByID, ChunkByIDDesc, and OrderedChunkByID
Adds validation error for invalid chunk sizes (OrmQueryChunkZeroOrLess)
Includes mock implementations for testing

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
`contracts/database/orm/orm.go`	Adds interface definitions for the four new chunking methods with documentation
`database/gorm/query.go`	Implements the chunking logic with offset-based (`Chunk`) and ID-based (`ChunkByID`, `ChunkByIDDesc`, `OrderedChunkByID`) pagination strategies
`errors/list.go`	Adds `OrmQueryChunkZeroOrLess` error for chunk count validation
`mocks/database/orm/Query.go`	Auto-generated mock implementations for the new chunking methods

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Copilot · 2025-12-01T14:15:17Z

contracts/database/orm/orm.go

 	BeginTransaction() (Query, error)
+	// Chunk processes a given number of records in batches.
+	Chunk(count int, callback func([]any) error) error
+	// Chunk the results of a query by comparing numeric IDs.


The documentation comment is incorrect. It should describe the ChunkByID method, not be a duplicate of the Chunk comment.

The comment should indicate that ChunkByID chunks results by comparing numeric IDs in ascending order, which avoids issues with offset-based pagination when records are added/deleted during processing.

Suggested change

// Chunk the results of a query by comparing numeric IDs.

// ChunkByID processes records in batches by comparing numeric IDs in ascending order.

// This avoids issues with offset-based pagination when records are added or deleted during processing.

Copilot · 2025-12-01T14:15:18Z

database/gorm/query.go

+func (r *Query) Chunk(count int, callback func([]any) error) error {
+	if count <= 0 {
+		return errors.OrmQueryChunkZeroOrLess
+	}
+
+	var remaining *int
+	if r.conditions.limit != nil {
+		limit := *r.conditions.limit
+		remaining = &limit
+	}
+
+	query := r.addGlobalScopes().buildConditions()
+
+	destType := reflect.TypeOf(r.conditions.model)
+	sliceType := reflect.SliceOf(reflect.PointerTo(destType))
+	offset := 0
+
+	for remaining == nil || *remaining > 0 {
+		chunkLimit := count
+		if remaining != nil && *remaining < count {
+			chunkLimit = *remaining
+		}
+
+		results := reflect.New(sliceType).Interface()
+
+		chunkQuery := query.Offset(offset).Limit(chunkLimit).(*Query)
+		err := chunkQuery.Find(results)
+		if err != nil {
+			return err
+		}
+
+		resultsValue := reflect.ValueOf(results).Elem()
+		length := resultsValue.Len()
+		if length == 0 {
+			return nil
+		}
+
+		if remaining != nil {
+			*remaining = max(*remaining-length, 0)
+		}
+
+		values := make([]any, length)
+		for i := 0; i < length; i++ {
+			values[i] = resultsValue.Index(i).Interface()
+		}
+
+		if err = callback(values); err != nil {
+			return err
+		}
+
+		if length < chunkLimit {
+			return nil
+		}
+
+		offset += chunkLimit
+	}
+
+	return nil
+}


The new chunking methods (Chunk, ChunkByID, ChunkByIDDesc, and OrderedChunkByID) lack test coverage. Given that the repository includes comprehensive test coverage for other query methods (e.g., in database/gorm/query_test.go), these new methods should also have corresponding tests to verify:

Correct chunking behavior with various count values

Proper handling of offset and limit constraints

Error handling for invalid count values (count <= 0)

Callback error propagation

Correct ordering behavior for ChunkByID variants

Edge cases like empty results or results smaller than chunk size

+1, and please add test cases in tests/query_test.go as well.

Copilot · 2025-12-01T14:15:18Z

database/gorm/query.go

+		return errors.OrmQueryChunkZeroOrLess
+	}
+
+	column := "id"


The OrderedChunkByID method hardcodes the primary key column name as "id" (line 265), which assumes all models use this column name. This could cause issues when:

Models use a different primary key column name (e.g., user_id, uuid)

The database column name differs from the struct field name due to GORM's column: tag

While database.GetID can retrieve the primary key value using reflection and GORM tags, there's no corresponding mechanism to get the actual database column name for use in the WHERE clauses (lines 305, 307) and ORDER BY clauses (lines 298, 300).

Consider either:

Adding a parameter to allow users to specify a custom column name (similar to Laravel's implementation)

Creating a utility function to extract the primary key column name from GORM model metadata

Documenting this limitation clearly in the method's documentation

hwbrzzl

Thanks, great PR 👍 Left a few questions.

hwbrzzl · 2025-12-02T12:07:36Z

contracts/database/orm/orm.go

 	// OrderByRaw specifies the order should be raw.
 	OrderByRaw(raw string) Query
+	// OrderedChunkByID processes a given number of records in batches, ordered by ID.
+	OrderedChunkByID(count int, callback func([]any) error, descending bool) error


It's unnecessary to expose this function.

The functionality is indeed achieved by the other two added methods. I exposed it since it existed in the Laravel interface, but I'm fine with keeping it private. (changed)

hwbrzzl · 2025-12-02T12:08:00Z

database/gorm/query.go

+func (r *Query) Chunk(count int, callback func([]any) error) error {
+	if count <= 0 {
+		return errors.OrmQueryChunkZeroOrLess
+	}
+
+	var remaining *int
+	if r.conditions.limit != nil {
+		limit := *r.conditions.limit
+		remaining = &limit
+	}
+
+	query := r.addGlobalScopes().buildConditions()
+
+	destType := reflect.TypeOf(r.conditions.model)
+	sliceType := reflect.SliceOf(reflect.PointerTo(destType))
+	offset := 0
+
+	for remaining == nil || *remaining > 0 {
+		chunkLimit := count
+		if remaining != nil && *remaining < count {
+			chunkLimit = *remaining
+		}
+
+		results := reflect.New(sliceType).Interface()
+
+		chunkQuery := query.Offset(offset).Limit(chunkLimit).(*Query)
+		err := chunkQuery.Find(results)
+		if err != nil {
+			return err
+		}
+
+		resultsValue := reflect.ValueOf(results).Elem()
+		length := resultsValue.Len()
+		if length == 0 {
+			return nil
+		}
+
+		if remaining != nil {
+			*remaining = max(*remaining-length, 0)
+		}
+
+		values := make([]any, length)
+		for i := 0; i < length; i++ {
+			values[i] = resultsValue.Index(i).Interface()
+		}
+
+		if err = callback(values); err != nil {
+			return err
+		}
+
+		if length < chunkLimit {
+			return nil
+		}
+
+		offset += chunkLimit
+	}
+
+	return nil
+}


+1, and please add test cases in tests/query_test.go as well.

hwbrzzl · 2025-12-02T12:09:04Z

contracts/database/orm/orm.go

Could you add the same functions in db.go?

database/gorm/query.go

hwbrzzl · 2025-12-02T12:24:47Z

contracts/database/orm/orm.go

+	ChunkByID(count int, callback func([]any) error) error
+	// ChunkByIDDesc processes a given number of records in batches, ordered by ID in descending order.
+	ChunkByIDDesc(count int, callback func([]any) error) error


The default column is id.

Suggested change

ChunkByID(count int, callback func([]any) error) error

// ChunkByIDDesc processes a given number of records in batches, ordered by ID in descending order.

ChunkByIDDesc(count int, callback func([]any) error) error

ChunkByID(count int, callback func([]any) error, column ...string) error

// ChunkByIDDesc processes a given number of records in batches, ordered by ID in descending order.

ChunkByIDDesc(count int, callback func([]any) error, column ...string) error

database/gorm/query.go

hwbrzzl · 2025-12-02T12:30:04Z

database/gorm/query.go

+		}
+
+		lastRecord := values[length-1]
+		lastID = database.GetID(lastRecord)


lastID may be nil

…handling - Enhanced ChunkByID method documentation to clarify its purpose. - Removed the OrderedChunkByID method and replaced its usage with an internal orderedChunkByID method. - Added validation for nil model conditions in Chunk and orderedChunkByID methods. - Updated mock definitions to reflect the removal of OrderedChunkByID.

feat: add chunk by query methods (goravel#714)

9232f6d

arashackdev force-pushed the feature/chunk-by-queries branch from 853bd60 to 9232f6d Compare December 1, 2025 02:22

arashackdev marked this pull request as ready for review December 1, 2025 02:35

arashackdev requested a review from a team as a code owner December 1, 2025 02:35

fix: regenerate Query mockfile

1ce05cb

hwbrzzl requested a review from Copilot December 1, 2025 14:09

Copilot started reviewing on behalf of hwbrzzl December 1, 2025 14:10 View session

Copilot finished reviewing on behalf of hwbrzzl December 1, 2025 14:14

Copilot AI reviewed Dec 1, 2025

View reviewed changes

hwbrzzl reviewed Dec 2, 2025

View reviewed changes

	// Chunk the results of a query by comparing numeric IDs.
	// ChunkByID processes records in batches by comparing numeric IDs in ascending order.
	// This avoids issues with offset-based pagination when records are added or deleted during processing.

feat: add chunk by query methods (#714) #1281

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feat: add chunk by query methods (#714) #1281

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