FIX[BE]: if project flocs deleted kandangs reset to non_active and add filter get all project_flock by area,kandangs,period and location

internal/database/migrations/20251018072532_project_flock_kandangs.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS project_flock_kandangs;

internal/database/migrations/20251018072532_project_flock_kandangs.up.sql

@@ -0,0 +1,17 @@
+CREATE TABLE project_flock_kandangs (
+    id BIGSERIAL PRIMARY KEY,
+    project_flock_id BIGINT NOT NULL REFERENCES project_flocks (id) ON DELETE CASCADE ON UPDATE CASCADE,
+    kandang_id BIGINT NOT NULL REFERENCES kandangs (id) ON DELETE CASCADE ON UPDATE CASCADE,
+    created_by BIGINT REFERENCES users (id) ON DELETE SET NULL ON UPDATE CASCADE,
+    assigned_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    detached_at TIMESTAMPTZ,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_project_flock_kandangs_project ON project_flock_kandangs (project_flock_id);
+CREATE INDEX idx_project_flock_kandangs_kandang ON project_flock_kandangs (kandang_id);
+
+CREATE UNIQUE INDEX idx_project_flock_kandangs_active ON project_flock_kandangs (project_flock_id, kandang_id)
+WHERE
+    detached_at IS NULL;

internal/database/seed/seeder.go

@@ -378,6 +378,9 @@ func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users
 			if err := tx.Create(&kandang).Error; err != nil {
 				return nil, err
 			}
+			if err := syncPivotRelation(tx, projectFlockID, kandang.Id, createdBy); err != nil {
+				return nil, err
+			}
 		} else if err != nil {
 			return nil, err
 		} else {
@@ -394,6 +397,9 @@ func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users
 			if err := tx.Model(&entity.Kandang{}).Where("id = ?", kandang.Id).Updates(updates).Error; err != nil {
 				return nil, err
 			}
+			if err := syncPivotRelation(tx, projectFlockID, kandang.Id, createdBy); err != nil {
+				return nil, err
+			}
 		}
 		result[seed.Name] = kandang.Id
 	}
@@ -401,6 +407,40 @@ func seedKandangs(tx *gorm.DB, createdBy uint, locations map[string]uint, users
 	return result, nil
 }
 
+func syncPivotRelation(tx *gorm.DB, projectFlockID *uint, kandangID uint, createdBy uint) error {
+	if err := detachActivePivot(tx, kandangID); err != nil {
+		return err
+	}
+	if projectFlockID == nil {
+		return nil
+	}
+	return ensureActivePivot(tx, *projectFlockID, kandangID, createdBy)
+}
+
+func detachActivePivot(tx *gorm.DB, kandangID uint) error {
+	return tx.Model(&entity.ProjectFlockKandang{}).
+		Where("kandang_id = ? AND detached_at IS NULL", kandangID).
+		Updates(map[string]any{"detached_at": time.Now()}).Error
+}
+
+func ensureActivePivot(tx *gorm.DB, projectFlockID, kandangID, createdBy uint) error {
+	var pivot entity.ProjectFlockKandang
+	err := tx.Where("project_flock_id = ? AND kandang_id = ? AND detached_at IS NULL", projectFlockID, kandangID).
+		First(&pivot).Error
+	if err == nil {
+		return nil
+	}
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+		return err
+	}
+	newRecord := entity.ProjectFlockKandang{
+		ProjectFlockId: projectFlockID,
+		KandangId:      kandangID,
+		CreatedBy:      createdBy,
+	}
+	return tx.Create(&newRecord).Error
+}
+
 func seedWarehouses(tx *gorm.DB, createdBy uint, areas map[string]uint, locations map[string]uint, kandangs map[string]uint) error {
 	seeds := []struct {
 		Name     string

internal/entities/projectfloc.go

@@ -7,22 +7,23 @@ import (
 )
 
 type ProjectFlock struct {
-	Id                uint            `gorm:"primaryKey"`
+	Id                uint                  `gorm:"primaryKey"`
-	FlockId           uint            `gorm:"not null;uniqueIndex:idx_project_flocks_flock_period,priority:1"`
+	FlockId           uint                  `gorm:"not null;uniqueIndex:idx_project_flocks_flock_period,priority:1"`
-	AreaId            uint            `gorm:"not null"`
+	AreaId            uint                  `gorm:"not null"`
-	ProductCategoryId uint            `gorm:"not null"`
+	ProductCategoryId uint                  `gorm:"not null"`
-	FcrId             uint            `gorm:"not null"`
+	FcrId             uint                  `gorm:"not null"`
-	LocationId        uint            `gorm:"not null"`
+	LocationId        uint                  `gorm:"not null"`
-	Period            int             `gorm:"not null;uniqueIndex:idx_project_flocks_flock_period,priority:2"`
+	Period            int                   `gorm:"not null;uniqueIndex:idx_project_flocks_flock_period,priority:2"`
-	CreatedBy         uint            `gorm:"not null"`
+	CreatedBy         uint                  `gorm:"not null"`
-	CreatedAt         time.Time       `gorm:"autoCreateTime"`
+	CreatedAt         time.Time             `gorm:"autoCreateTime"`
-	UpdatedAt         time.Time       `gorm:"autoUpdateTime"`
+	UpdatedAt         time.Time             `gorm:"autoUpdateTime"`
-	DeletedAt         gorm.DeletedAt  `gorm:"index" json:"-"`
+	DeletedAt         gorm.DeletedAt        `gorm:"index" json:"-"`
-	Flock             Flock           `gorm:"foreignKey:FlockId;references:Id"`
+	Flock             Flock                 `gorm:"foreignKey:FlockId;references:Id"`
-	Area              Area            `gorm:"foreignKey:AreaId;references:Id"`
+	Area              Area                  `gorm:"foreignKey:AreaId;references:Id"`
-	ProductCategory   ProductCategory `gorm:"foreignKey:ProductCategoryId;references:Id"`
+	ProductCategory   ProductCategory       `gorm:"foreignKey:ProductCategoryId;references:Id"`
-	Fcr               Fcr             `gorm:"foreignKey:FcrId;references:Id"`
+	Fcr               Fcr                   `gorm:"foreignKey:FcrId;references:Id"`
-	Location          Location        `gorm:"foreignKey:LocationId;references:Id"`
+	Location          Location              `gorm:"foreignKey:LocationId;references:Id"`
-	CreatedUser       User            `gorm:"foreignKey:CreatedBy;references:Id"`
+	CreatedUser       User                  `gorm:"foreignKey:CreatedBy;references:Id"`
-	Kandangs          []Kandang       `gorm:"foreignKey:ProjectFlockId;references:Id"`
+	Kandangs          []Kandang             `gorm:"foreignKey:ProjectFlockId;references:Id"`
+	KandangHistory    []ProjectFlockKandang `gorm:"foreignKey:ProjectFlockId;references:Id"`
 }

internal/entities/projectflock_kandang.go

@@ -0,0 +1,17 @@
+package entities
+
+import "time"
+
+type ProjectFlockKandang struct {
+	Id             uint         `gorm:"primaryKey"`
+	ProjectFlockId uint         `gorm:"not null;index:idx_project_flock_kandangs_project;uniqueIndex:idx_project_flock_kandangs_active,priority:1,where:detached_at IS NULL"`
+	KandangId      uint         `gorm:"not null;index:idx_project_flock_kandangs_kandang;uniqueIndex:idx_project_flock_kandangs_active,priority:2,where:detached_at IS NULL"`
+	CreatedBy      uint         `gorm:"not null"`
+	AssignedAt     time.Time    `gorm:"autoCreateTime"`
+	DetachedAt     *time.Time   `gorm:"index"`
+	CreatedAt      time.Time    `gorm:"autoCreateTime"`
+	UpdatedAt      time.Time    `gorm:"autoUpdateTime"`
+	ProjectFlock   ProjectFlock `gorm:"foreignKey:ProjectFlockId;references:Id"`
+	Kandang        Kandang      `gorm:"foreignKey:KandangId;references:Id"`
+	CreatedUser    User         `gorm:"foreignKey:CreatedBy;references:Id"`
+}

internal/modules/production/project_flocks/controllers/projectflock.controller.go

@@ -1,8 +1,11 @@
 package controller
 
 import (
+	"encoding/json"
+	"fmt"
 	"math"
 	"strconv"
+	"strings"
 
 	"gitlab.com/mbugroup/lti-api.git/internal/modules/production/project_flocks/dto"
 	service "gitlab.com/mbugroup/lti-api.git/internal/modules/production/project_flocks/services"
@@ -23,10 +26,58 @@ func NewProjectflockController(projectflockService service.ProjectflockService)
 }
 
 func (u *ProjectflockController) GetAll(c *fiber.Ctx) error {
+	parseUintList := func(raw string) ([]uint, error) {
+		raw = strings.TrimSpace(raw)
+		if raw == "" {
+			return nil, nil
+		}
+
+		var ids []uint
+		if strings.HasPrefix(raw, "[") {
+			if err := json.Unmarshal([]byte(raw), &ids); err == nil {
+				return ids, nil
+			}
+		}
+
+		parts := strings.Split(raw, ",")
+		for _, part := range parts {
+			part = strings.Trim(part, " \"[]")
+			if part == "" {
+				continue
+			}
+			v, err := strconv.Atoi(part)
+			if err != nil || v <= 0 {
+				return nil, fmt.Errorf("invalid kandang id: %s", part)
+			}
+			ids = append(ids, uint(v))
+		}
+		return ids, nil
+	}
+
 	query := &validation.Query{
-		Page:   c.QueryInt("page", 1),
+		Page:      c.QueryInt("page", 1),
-		Limit:  c.QueryInt("limit", 10),
+		Limit:     c.QueryInt("limit", 10),
-		Search: c.Query("search", ""),
+		Search:    c.Query("search", ""),
+		SortBy:    c.Query("sort_by", ""),
+		SortOrder: c.Query("sort_order", ""),
+	}
+
+	if area := c.QueryInt("area_id", 0); area > 0 {
+		query.AreaId = uint(area)
+	}
+	if location := c.QueryInt("location_id", 0); location > 0 {
+		query.LocationId = uint(location)
+	}
+	if period := c.QueryInt("period", 0); period > 0 {
+		query.Period = period
+	}
+
+	if kandangRaw := c.Query("kandang_id", c.Query("kandang_ids", "")); kandangRaw != "" {
+		ids, err := parseUintList(kandangRaw)
+		if err != nil {
+			return fiber.NewError(fiber.StatusBadRequest, err.Error())
+		}
+		query.KandangIds = ids
 	}
 
 	result, totalResults, err := u.ProjectflockService.GetAll(c, query)

internal/modules/production/project_flocks/dto/projectflock.dto.go

@@ -8,24 +8,24 @@ import (
 )
 
 type ProjectFlockBaseDTO struct {
-	Id                uint `json:"id"`
+	Id uint `json:"id"`
 	// FlockId           uint `json:"flock_id"`
 	// AreaId            uint `json:"area_id"`
 	// ProductCategoryId uint `json:"product_category_id"`
 	// FcrId             uint `json:"fcr_id"`
 	// LocationId        uint `json:"location_id"`
-	Period            int  `json:"period"`
+	Period int `json:"period"`
 }
 
 func ToProjectFlockBaseDTO(e entity.ProjectFlock) ProjectFlockBaseDTO {
 	return ProjectFlockBaseDTO{
-		Id:                e.Id,
+		Id: e.Id,
 		// FlockId:           e.FlockId,
 		// AreaId:            e.AreaId,
 		// ProductCategoryId: e.ProductCategoryId,
 		// FcrId:             e.FcrId,
 		// LocationId:        e.LocationId,
-		Period:            e.Period,
+		Period: e.Period,
 	}
 }
 

internal/modules/production/project_flocks/module.go

@@ -20,9 +20,10 @@ func (ProjectflockModule) RegisterRoutes(router fiber.Router, db *gorm.DB, valid
 	flockRepo := rFlock.NewFlockRepository(db)
 	kandangRepo := rKandang.NewKandangRepository(db)
 	projectflockRepo := rProjectflock.NewProjectflockRepository(db)
+	projectflockKandangRepo := rProjectflock.NewProjectFlockKandangRepository(db)
 	userRepo := rUser.NewUserRepository(db)
 
-	projectflockService := sProjectflock.NewProjectflockService(projectflockRepo, flockRepo, kandangRepo, validate)
+	projectflockService := sProjectflock.NewProjectflockService(projectflockRepo, flockRepo, kandangRepo, projectflockKandangRepo, validate)
 	userService := sUser.NewUserService(userRepo, validate)
 
 	ProjectflockRoutes(router, userService, projectflockService)

internal/modules/production/project_flocks/repositories/projectflock_kandang.repository.go

@@ -0,0 +1,64 @@
+package repository
+
+import (
+	"context"
+	"time"
+
+	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
+	"gorm.io/gorm"
+)
+
+type ProjectFlockKandangRepository interface {
+	CreateMany(ctx context.Context, records []*entity.ProjectFlockKandang) error
+	MarkDetached(ctx context.Context, projectFlockID uint, kandangIDs []uint, detachedAt time.Time) error
+	GetAll(ctx context.Context) ([]entity.ProjectFlockKandang, error)
+	WithTx(tx *gorm.DB) ProjectFlockKandangRepository
+	DB() *gorm.DB
+}
+
+type projectFlockKandangRepositoryImpl struct {
+	db *gorm.DB
+}
+
+func NewProjectFlockKandangRepository(db *gorm.DB) ProjectFlockKandangRepository {
+	return &projectFlockKandangRepositoryImpl{db: db}
+}
+
+func (r *projectFlockKandangRepositoryImpl) CreateMany(ctx context.Context, records []*entity.ProjectFlockKandang) error {
+	if len(records) == 0 {
+		return nil
+	}
+	return r.db.WithContext(ctx).Create(&records).Error
+}
+
+func (r *projectFlockKandangRepositoryImpl) MarkDetached(ctx context.Context, projectFlockID uint, kandangIDs []uint, detachedAt time.Time) error {
+	if len(kandangIDs) == 0 {
+		return nil
+	}
+	return r.db.WithContext(ctx).
+		Model(&entity.ProjectFlockKandang{}).
+		Where("project_flock_id = ? AND kandang_id IN ? AND detached_at IS NULL", projectFlockID, kandangIDs).
+		Updates(map[string]any{"detached_at": detachedAt}).Error
+}
+
+func (r *projectFlockKandangRepositoryImpl) GetAll(ctx context.Context) ([]entity.ProjectFlockKandang, error) {
+	var records []entity.ProjectFlockKandang
+	if err := r.db.WithContext(ctx).
+		Preload("ProjectFlock").
+		Preload("ProjectFlock.Flock").
+		Preload("Kandang").
+		Preload("CreatedUser").
+		Order("project_flock_id ASC, assigned_at ASC").
+		Find(&records).Error; err != nil {
+		return nil, err
+	}
+	return records, nil
+}
+
+func (r *projectFlockKandangRepositoryImpl) WithTx(tx *gorm.DB) ProjectFlockKandangRepository {
+	return &projectFlockKandangRepositoryImpl{db: tx}
+}
+
+func (r *projectFlockKandangRepositoryImpl) DB() *gorm.DB {
+	return r.db
+}

internal/modules/production/project_flocks/services/projectflock.service.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"strings"
+	"time"
 
 	commonRepo "gitlab.com/mbugroup/lti-api.git/internal/common/repository"
 	common "gitlab.com/mbugroup/lti-api.git/internal/common/service"
@@ -35,6 +37,7 @@ type projectflockService struct {
 	Repository  repository.ProjectflockRepository
 	FlockRepo   flockRepository.FlockRepository
 	KandangRepo kandangRepository.KandangRepository
+	PivotRepo   repository.ProjectFlockKandangRepository
 }
 
 type FlockPeriodSummary struct {
@@ -46,6 +49,7 @@ func NewProjectflockService(
 	repo repository.ProjectflockRepository,
 	flockRepo flockRepository.FlockRepository,
 	kandangRepo kandangRepository.KandangRepository,
+	pivotRepo repository.ProjectFlockKandangRepository,
 	validate *validator.Validate,
 ) ProjectflockService {
 	return &projectflockService{
@@ -54,6 +58,7 @@ func NewProjectflockService(
 		Repository:  repo,
 		FlockRepo:   flockRepo,
 		KandangRepo: kandangRepo,
+		PivotRepo:   pivotRepo,
 	}
 }
 
@@ -73,11 +78,81 @@ func (s projectflockService) GetAll(c *fiber.Ctx, params *validation.Query) ([]e
 		return nil, 0, err
 	}
 
+	if params.Page <= 0 {
+		params.Page = 1
+	}
+	if params.Limit <= 0 {
+		params.Limit = 10
+	}
+
 	offset := (params.Page - 1) * params.Limit
 
 	projectflocks, total, err := s.Repository.GetAll(c.Context(), offset, params.Limit, func(db *gorm.DB) *gorm.DB {
 		db = s.withRelations(db)
-		return db.Order("created_at DESC").Order("updated_at DESC")
+
+		if params.AreaId > 0 {
+			db = db.Where("project_flocks.area_id = ?", params.AreaId)
+		}
+		if params.LocationId > 0 {
+			db = db.Where("project_flocks.location_id = ?", params.LocationId)
+		}
+		if params.Period > 0 {
+			db = db.Where("project_flocks.period = ?", params.Period)
+		}
+		if len(params.KandangIds) > 0 {
+			db = db.Where("EXISTS (SELECT 1 FROM kandangs WHERE kandangs.project_flock_id = project_flocks.id AND kandangs.id IN ?)", params.KandangIds)
+		}
+
+		if params.Search != "" {
+			normalizedSearch := strings.ToLower(strings.TrimSpace(params.Search))
+			if normalizedSearch == "" {
+				for _, expr := range s.buildOrderExpressions(params.SortBy, params.SortOrder) {
+					db = db.Order(expr)
+				}
+				return db
+			}
+			likeQuery := "%" + normalizedSearch + "%"
+			db = db.
+				Joins("LEFT JOIN flocks ON flocks.id = project_flocks.flock_id").
+				Joins("LEFT JOIN areas ON areas.id = project_flocks.area_id").
+				Joins("LEFT JOIN product_categories ON product_categories.id = project_flocks.product_category_id").
+				Joins("LEFT JOIN fcrs ON fcrs.id = project_flocks.fcr_id").
+				Joins("LEFT JOIN locations ON locations.id = project_flocks.location_id").
+				Joins("LEFT JOIN users AS created_users ON created_users.id = project_flocks.created_by").
+				Where(`
+					LOWER(flocks.name) LIKE ?
+					OR LOWER(areas.name) LIKE ?
+					OR LOWER(product_categories.name) LIKE ?
+					OR LOWER(product_categories.code) LIKE ?
+					OR LOWER(fcrs.name) LIKE ?
+					OR LOWER(locations.name) LIKE ?
+					OR LOWER(locations.address) LIKE ?
+					OR LOWER(created_users.name) LIKE ?
+					OR LOWER(created_users.email) LIKE ?
+					OR LOWER(CAST(project_flocks.period AS TEXT)) LIKE ?
+					OR EXISTS (
+						SELECT 1 FROM kandangs
+						WHERE kandangs.project_flock_id = project_flocks.id
+						AND LOWER(kandangs.name) LIKE ?
+					)
+				`,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+					likeQuery,
+				)
+		}
+		for _, expr := range s.buildOrderExpressions(params.SortBy, params.SortOrder) {
+			db = db.Order(expr)
+		}
+		return db
 	})
 
 	if err != nil {
@@ -167,12 +242,10 @@ func (s *projectflockService) CreateOne(c *fiber.Ctx, req *validation.Create) (*
 		return nil, err
 	}
 
-	if err := tx.Model(&entity.Kandang{}).
+	if err := s.attachKandangs(c.Context(), tx, createBody.Id, kandangIDs, createBody.CreatedBy); err != nil {
-		Where("id IN ?", kandangIDs).
-		Updates(map[string]any{"project_flock_id": createBody.Id}).Error; err != nil {
 		tx.Rollback()
-		s.Log.Errorf("Failed to assign kandangs to projectflock: %+v", err)
+		s.Log.Errorf("Failed to attach kandangs to projectflock %d: %+v", createBody.Id, err)
-		return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to assign kandangs")
+		return nil, err
 	}
 
 	if err := tx.Commit().Error; err != nil {
@@ -315,22 +388,18 @@ func (s projectflockService) UpdateOne(c *fiber.Ctx, req *validation.Update, id
 		}
 
 		if len(toDetach) > 0 {
-			if err := tx.Model(&entity.Kandang{}).
+			if err := s.detachKandangs(c.Context(), tx, id, toDetach, false); err != nil {
-				Where("id IN ?", toDetach).
-				Updates(map[string]any{"project_flock_id": nil}).Error; err != nil {
 				tx.Rollback()
-				s.Log.Errorf("Failed to detach kandangs: %+v", err)
+				s.Log.Errorf("Failed to detach kandangs from projectflock %d: %+v", id, err)
-				return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs")
+				return nil, err
 			}
 		}
 
 		if len(toAttach) > 0 {
-			if err := tx.Model(&entity.Kandang{}).
+			if err := s.attachKandangs(c.Context(), tx, id, toAttach, existing.CreatedBy); err != nil {
-				Where("id IN ?", toAttach).
-				Updates(map[string]any{"project_flock_id": id}).Error; err != nil {
 				tx.Rollback()
-				s.Log.Errorf("Failed to attach kandangs: %+v", err)
+				s.Log.Errorf("Failed to attach kandangs to projectflock %d: %+v", id, err)
-				return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs")
+				return nil, err
 			}
 		}
 	}
@@ -363,12 +432,10 @@ func (s projectflockService) DeleteOne(c *fiber.Ctx, id uint) error {
 		for i, k := range existing.Kandangs {
 			ids[i] = k.Id
 		}
-		if err := tx.Model(&entity.Kandang{}).
+		if err := s.detachKandangs(c.Context(), tx, id, ids, true); err != nil {
-			Where("id IN ?", ids).
-			Updates(map[string]any{"project_flock_id": nil}).Error; err != nil {
 			tx.Rollback()
-			s.Log.Errorf("Failed to detach kandangs before delete: %+v", err)
+			s.Log.Errorf("Failed to detach kandangs before deleting projectflock %d: %+v", id, err)
-			return fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs")
+			return err
 		}
 	}
 
@@ -431,3 +498,93 @@ func relationExistsChecker[T any](db *gorm.DB) func(context.Context, uint) (bool
 		return commonRepo.Exists[T](ctx, db, id)
 	}
 }
+
+func (s projectflockService) buildOrderExpressions(sortBy, sortOrder string) []string {
+	direction := "ASC"
+	if strings.ToLower(sortOrder) == "desc" {
+		direction = "DESC"
+	}
+
+	switch sortBy {
+	case "area":
+		return []string{
+			fmt.Sprintf("(SELECT name FROM areas WHERE areas.id = project_flocks.area_id) %s", direction),
+			fmt.Sprintf("project_flocks.id %s", direction),
+		}
+	case "location":
+		return []string{
+			fmt.Sprintf("(SELECT name FROM locations WHERE locations.id = project_flocks.location_id) %s", direction),
+			fmt.Sprintf("project_flocks.id %s", direction),
+		}
+	case "kandangs":
+		return []string{
+			fmt.Sprintf("(SELECT COUNT(*) FROM kandangs WHERE kandangs.project_flock_id = project_flocks.id) %s", direction),
+			fmt.Sprintf("project_flocks.id %s", direction),
+		}
+	case "period":
+		return []string{
+			fmt.Sprintf("project_flocks.period %s", direction),
+			fmt.Sprintf("project_flocks.id %s", direction),
+		}
+	default:
+		return []string{
+			"project_flocks.created_at DESC",
+			"project_flocks.updated_at DESC",
+		}
+	}
+}
+
+func (s projectflockService) attachKandangs(ctx context.Context, tx *gorm.DB, projectFlockID uint, kandangIDs []uint, createdBy uint) error {
+	if len(kandangIDs) == 0 {
+		return nil
+	}
+
+	if err := tx.Model(&entity.Kandang{}).
+		Where("id IN ?", kandangIDs).
+		Updates(map[string]any{"project_flock_id": projectFlockID}).Error; err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs")
+	}
+
+	pivotRepo := s.pivotRepoWithTx(tx)
+	records := make([]*entity.ProjectFlockKandang, len(kandangIDs))
+	for i, id := range kandangIDs {
+		records[i] = &entity.ProjectFlockKandang{
+			ProjectFlockId: projectFlockID,
+			KandangId:      id,
+			CreatedBy:      createdBy,
+		}
+	}
+	if err := pivotRepo.CreateMany(ctx, records); err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to persist project flock history")
+	}
+	return nil
+}
+
+func (s projectflockService) detachKandangs(ctx context.Context, tx *gorm.DB, projectFlockID uint, kandangIDs []uint, resetStatus bool) error {
+	if len(kandangIDs) == 0 {
+		return nil
+	}
+
+	updates := map[string]any{"project_flock_id": nil}
+	if resetStatus {
+		updates["status"] = string(utils.KandangStatusNonActive)
+	}
+
+	if err := tx.Model(&entity.Kandang{}).
+		Where("id IN ?", kandangIDs).
+		Updates(updates).Error; err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to update kandangs")
+	}
+
+	if err := s.pivotRepoWithTx(tx).MarkDetached(ctx, projectFlockID, kandangIDs, time.Now()); err != nil {
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to persist project flock history")
+	}
+	return nil
+}
+
+func (s projectflockService) pivotRepoWithTx(tx *gorm.DB) repository.ProjectFlockKandangRepository {
+	if s.PivotRepo == nil {
+		return repository.NewProjectFlockKandangRepository(tx)
+	}
+	return s.PivotRepo.WithTx(tx)
+}

internal/modules/production/project_flocks/validations/projectflock.validation.go

@@ -20,7 +20,13 @@ type Update struct {
 }
 
 type Query struct {
-	Page   int    `query:"page" validate:"omitempty,number,min=1"`
+	Page      int    `query:"page" validate:"omitempty,number,min=1"`
-	Limit  int    `query:"limit" validate:"omitempty,number,min=1,max=100"`
+	Limit     int    `query:"limit" validate:"omitempty,number,min=1,max=100"`
-	Search string `query:"search" validate:"omitempty,max=50"`
+	Search    string `query:"search" validate:"omitempty,max=50"`
+	SortBy    string `query:"sort_by" validate:"omitempty,oneof=area location kandangs period"`
+	SortOrder string `query:"sort_order" validate:"omitempty,oneof=asc desc"`
+	AreaId    uint   `query:"area_id" validate:"omitempty,number,gt=0"`
+	LocationId uint  `query:"location_id" validate:"omitempty,number,gt=0"`
+	Period    int    `query:"period" validate:"omitempty,number,gt=0"`
+	KandangIds []uint `query:"kandang_id" validate:"omitempty,dive,gt=0"`
 }

test/integration/master_data/master_data.go

@@ -42,6 +42,7 @@ func setupIntegrationApp(t *testing.T) (*fiber.App, *gorm.DB) {
 		&entities.Location{},
 		&entities.Flock{},
 		&entities.ProjectFlock{},
+		&entities.ProjectFlockKandang{},
 		&entities.Kandang{},
 		&entities.Warehouse{},
 		&entities.Uom{},
@@ -191,6 +192,15 @@ func fetchCustomer(t *testing.T, db *gorm.DB, id uint) entities.Customer {
 	return customer
 }
 
+func fetchKandang(t *testing.T, db *gorm.DB, id uint) entities.Kandang {
+	t.Helper()
+	var kandang entities.Kandang
+	if err := db.Preload("ProjectFlock").First(&kandang, id).Error; err != nil {
+		t.Fatalf("failed to fetch kandang: %v", err)
+	}
+	return kandang
+}
+
 func createSupplier(t *testing.T, app *fiber.App, name, alias, category string) uint {
 	t.Helper()
 	identifier := strings.ToLower(strings.ReplaceAll(name, " ", "_"))

test/integration/master_data/project_flock_test.go

@@ -4,13 +4,17 @@ import (
 	"encoding/json"
 	"fmt"
 	"net/http"
+	"net/url"
 	"testing"
 
 	"github.com/gofiber/fiber/v2"
+
+	"gitlab.com/mbugroup/lti-api.git/internal/entities"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils"
 )
 
 func TestProjectFlockSummary(t *testing.T) {
-	app, _ := setupIntegrationApp(t)
+	app, db := setupIntegrationApp(t)
 
 	areaID := createArea(t, app, "Area Project")
 	locationID := createLocation(t, app, "Location Project", "Address", areaID)
@@ -95,6 +99,21 @@ func TestProjectFlockSummary(t *testing.T) {
 		t.Fatalf("expected period 1 to be assigned automatically, got %d", createResp.Data.Period)
 	}
 
+	var pivotRecords []entities.ProjectFlockKandang
+	if err := db.Where("project_flock_id = ?", createResp.Data.Id).Find(&pivotRecords).Error; err != nil {
+		t.Fatalf("failed to fetch pivot records: %v", err)
+	}
+	if len(pivotRecords) != 1 {
+		t.Fatalf("expected 1 pivot record, got %d", len(pivotRecords))
+	}
+	firstPivotRecord := pivotRecords[0]
+	if firstPivotRecord.KandangId != kandangID {
+		t.Fatalf("expected pivot kandang id %d, got %d", kandangID, firstPivotRecord.KandangId)
+	}
+	if firstPivotRecord.DetachedAt != nil {
+		t.Fatalf("expected pivot DetachedAt to be nil for active assignment, got %v", firstPivotRecord.DetachedAt)
+	}
+
 	secondKandangID := createKandang(t, app, "Kandang Summary 2", locationID, 1)
 	secondPayload := map[string]any{
 		"flock_id":            flockID,
@@ -121,6 +140,21 @@ func TestProjectFlockSummary(t *testing.T) {
 		t.Fatalf("expected second period to be 2, got %d", createRespSecond.Data.Period)
 	}
 
+	pivotRecords = nil
+	if err := db.Where("project_flock_id = ?", createRespSecond.Data.Id).Find(&pivotRecords).Error; err != nil {
+		t.Fatalf("failed to fetch second pivot records: %v", err)
+	}
+	if len(pivotRecords) != 1 {
+		t.Fatalf("expected 1 pivot record for second project, got %d", len(pivotRecords))
+	}
+	secondPivotRecord := pivotRecords[0]
+	if secondPivotRecord.KandangId != secondKandangID {
+		t.Fatalf("expected second pivot kandang id %d, got %d", secondKandangID, secondPivotRecord.KandangId)
+	}
+	if secondPivotRecord.DetachedAt != nil {
+		t.Fatalf("expected second pivot DetachedAt to be nil, got %v", secondPivotRecord.DetachedAt)
+	}
+
 	resp, body = doJSONRequest(t, app, http.MethodGet, "/api/production/project_flocks/flocks/"+uintToString(flockID)+"/periods", nil)
 	if resp.StatusCode != fiber.StatusOK {
 		t.Fatalf("expected 200 when fetching summary, got %d: %s", resp.StatusCode, string(body))
@@ -144,11 +178,49 @@ func TestProjectFlockSummary(t *testing.T) {
 		t.Fatalf("expected 200 when deleting first project flock, got %d: %s", resp.StatusCode, string(body))
 	}
 
+	firstKandang := fetchKandang(t, db, kandangID)
+	if firstKandang.ProjectFlockId != nil {
+		t.Fatalf("expected project_flock_id to be nil after delete, got %v", *firstKandang.ProjectFlockId)
+	}
+	if firstKandang.Status != string(utils.KandangStatusNonActive) {
+		t.Fatalf("expected kandang status to revert to NON_ACTIVE, got %s", firstKandang.Status)
+	}
+
+	var firstPivot entities.ProjectFlockKandang
+	if err := db.First(&firstPivot, firstPivotRecord.Id).Error; err != nil {
+		t.Fatalf("failed to reload first pivot record: %v", err)
+	}
+	if firstPivot.DetachedAt == nil {
+		t.Fatalf("expected first pivot DetachedAt to be set after delete")
+	}
+	if firstPivot.ProjectFlockId != createResp.Data.Id {
+		t.Fatalf("expected first pivot project_flock_id %d, got %d", createResp.Data.Id, firstPivot.ProjectFlockId)
+	}
+
 	resp, body = doJSONRequest(t, app, http.MethodDelete, "/api/production/project_flocks/"+uintToString(createRespSecond.Data.Id), nil)
 	if resp.StatusCode != fiber.StatusOK {
 		t.Fatalf("expected 200 when deleting second project flock, got %d: %s", resp.StatusCode, string(body))
 	}
 
+	secondKandang := fetchKandang(t, db, secondKandangID)
+	if secondKandang.ProjectFlockId != nil {
+		t.Fatalf("expected second project_flock_id to be nil after delete, got %v", *secondKandang.ProjectFlockId)
+	}
+	if secondKandang.Status != string(utils.KandangStatusNonActive) {
+		t.Fatalf("expected second kandang status to revert to NON_ACTIVE, got %s", secondKandang.Status)
+	}
+
+	var secondPivot entities.ProjectFlockKandang
+	if err := db.First(&secondPivot, secondPivotRecord.Id).Error; err != nil {
+		t.Fatalf("failed to reload second pivot record: %v", err)
+	}
+	if secondPivot.DetachedAt == nil {
+		t.Fatalf("expected second pivot DetachedAt to be set after delete")
+	}
+	if secondPivot.ProjectFlockId != createRespSecond.Data.Id {
+		t.Fatalf("expected second pivot project_flock_id %d, got %d", createRespSecond.Data.Id, secondPivot.ProjectFlockId)
+	}
+
 	resp, body = doJSONRequest(t, app, http.MethodGet, "/api/production/project_flocks/flocks/"+uintToString(flockID)+"/periods", nil)
 	if resp.StatusCode != fiber.StatusOK {
 		t.Fatalf("expected 200 when fetching summary after delete, got %d: %s", resp.StatusCode, string(body))
@@ -166,3 +238,178 @@ func TestProjectFlockSummary(t *testing.T) {
 func uintToString(v uint) string {
 	return fmt.Sprintf("%d", v)
 }
+
+func TestProjectFlockSearchByRelatedFields(t *testing.T) {
+	app, _ := setupIntegrationApp(t)
+
+	areaID := createArea(t, app, "Area Search Target")
+	locationID := createLocation(t, app, "Location Search Target", "Location Address Target", areaID)
+	flockID := createFlock(t, app, "Flock Search Target")
+	categoryID := createProductCategory(t, app, "Category Search Target", "CATGT")
+	fcrID := createFcr(t, app, "FCR Search Target", []map[string]any{
+		{"weight": 1.0, "fcr_number": 1.5, "mortality": 2.0},
+	})
+	kandangID := createKandang(t, app, "Kandang Search Target", locationID, 1)
+
+	createPayload := map[string]any{
+		"flock_id":            flockID,
+		"area_id":             areaID,
+		"product_category_id": categoryID,
+		"fcr_id":              fcrID,
+		"location_id":         locationID,
+		"kandang_ids":         []uint{kandangID},
+	}
+
+	resp, body := doJSONRequest(t, app, http.MethodPost, "/api/production/project_flocks", createPayload)
+	if resp.StatusCode != fiber.StatusCreated {
+		t.Fatalf("expected 201 when creating project flock, got %d: %s", resp.StatusCode, string(body))
+	}
+
+	var createResp struct {
+		Data struct {
+			Id uint `json:"id"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(body, &createResp); err != nil {
+		t.Fatalf("failed to parse create response: %v", err)
+	}
+
+	searchTerms := []string{
+		"Flock Search Target",
+		"Area Search Target",
+		"Category Search Target",
+		"CATGT",
+		"FCR Search Target",
+		"Kandang Search Target",
+		"Location Search Target",
+		"Location Address Target",
+		"Tester",
+		"1",
+	}
+
+	for _, term := range searchTerms {
+		path := "/api/production/project_flocks?search=" + url.QueryEscape(term)
+		resp, body := doJSONRequest(t, app, http.MethodGet, path, nil)
+		if resp.StatusCode != fiber.StatusOK {
+			t.Fatalf("expected 200 when searching for %q, got %d: %s", term, resp.StatusCode, string(body))
+		}
+
+		var listResp struct {
+			Data []struct {
+				Id uint `json:"id"`
+			} `json:"data"`
+			Meta struct {
+				TotalResults int64 `json:"total_results"`
+			} `json:"meta"`
+		}
+		if err := json.Unmarshal(body, &listResp); err != nil {
+			t.Fatalf("failed to parse list response for %q: %v", term, err)
+		}
+		if listResp.Meta.TotalResults == 0 {
+			t.Fatalf("expected at least one result when searching for %q", term)
+		}
+		if len(listResp.Data) == 0 {
+			t.Fatalf("expected data when searching for %q", term)
+		}
+		if listResp.Data[0].Id != createResp.Data.Id {
+			t.Fatalf("expected project flock id %d for search term %q, got %d", createResp.Data.Id, term, listResp.Data[0].Id)
+		}
+	}
+}
+
+func TestProjectFlockSorting(t *testing.T) {
+	app, _ := setupIntegrationApp(t)
+
+	areaA := createArea(t, app, "Area Alpha")
+	areaB := createArea(t, app, "Area Beta")
+
+	locationA := createLocation(t, app, "Location Alpha", "Address Alpha", areaA)
+	locationB := createLocation(t, app, "Location Beta", "Address Beta", areaB)
+
+	flockOne := createFlock(t, app, "Flock Sort One")
+	flockTwo := createFlock(t, app, "Flock Sort Two")
+
+	categoryID := createProductCategory(t, app, "Category Sort", "CSORT")
+	fcrID := createFcr(t, app, "FCR Sort", []map[string]any{
+		{"weight": 1.0, "fcr_number": 1.5, "mortality": 2.0},
+	})
+
+	kandangOne := createKandang(t, app, "Kandang Sort One", locationA, 1)
+	kandangTwo := createKandang(t, app, "Kandang Sort Two", locationB, 1)
+	kandangThree := createKandang(t, app, "Kandang Sort Three", locationB, 1)
+
+	projectOnePayload := map[string]any{
+		"flock_id":            flockOne,
+		"area_id":             areaA,
+		"product_category_id": categoryID,
+		"fcr_id":              fcrID,
+		"location_id":         locationA,
+		"kandang_ids":         []uint{kandangOne},
+	}
+	resp, body := doJSONRequest(t, app, http.MethodPost, "/api/production/project_flocks", projectOnePayload)
+	if resp.StatusCode != fiber.StatusCreated {
+		t.Fatalf("expected 201 for project one, got %d: %s", resp.StatusCode, string(body))
+	}
+	projectOneID := parseProjectFlockID(t, body)
+
+	projectTwoPayload := map[string]any{
+		"flock_id":            flockTwo,
+		"area_id":             areaB,
+		"product_category_id": categoryID,
+		"fcr_id":              fcrID,
+		"location_id":         locationB,
+		"kandang_ids":         []uint{kandangTwo, kandangThree},
+	}
+	resp, body = doJSONRequest(t, app, http.MethodPost, "/api/production/project_flocks", projectTwoPayload)
+	if resp.StatusCode != fiber.StatusCreated {
+		t.Fatalf("expected 201 for project two, got %d: %s", resp.StatusCode, string(body))
+	}
+	projectTwoID := parseProjectFlockID(t, body)
+
+	updatePeriodPayload := map[string]any{"period": 5}
+	resp, body = doJSONRequest(t, app, http.MethodPatch, "/api/production/project_flocks/"+uintToString(projectTwoID), updatePeriodPayload)
+	if resp.StatusCode != fiber.StatusOK {
+		t.Fatalf("expected 200 when updating period, got %d: %s", resp.StatusCode, string(body))
+	}
+
+	assertOrder := func(t *testing.T, app *fiber.App, query string, expectedFirst uint) {
+		t.Helper()
+		resp, body := doJSONRequest(t, app, http.MethodGet, "/api/production/project_flocks?"+query, nil)
+		if resp.StatusCode != fiber.StatusOK {
+			t.Fatalf("expected 200 for query %q, got %d: %s", query, resp.StatusCode, string(body))
+		}
+		var listResp struct {
+			Data []struct {
+				Id uint `json:"id"`
+			} `json:"data"`
+		}
+		if err := json.Unmarshal(body, &listResp); err != nil {
+			t.Fatalf("failed to parse list response for %q: %v", query, err)
+		}
+		if len(listResp.Data) == 0 {
+			t.Fatalf("expected data for query %q", query)
+		}
+		if listResp.Data[0].Id != expectedFirst {
+			t.Fatalf("expected first id %d for query %q, got %d", expectedFirst, query, listResp.Data[0].Id)
+		}
+	}
+
+	assertOrder(t, app, "sort_by=area&sort_order=asc", projectOneID)
+	assertOrder(t, app, "sort_by=location&sort_order=desc", projectTwoID)
+	assertOrder(t, app, "sort_by=period&sort_order=desc", projectTwoID)
+	assertOrder(t, app, "sort_by=kandangs&sort_order=desc", projectTwoID)
+	assertOrder(t, app, "sort_by=kandangs&sort_order=asc", projectOneID)
+}
+
+func parseProjectFlockID(t *testing.T, body []byte) uint {
+	t.Helper()
+	var resp struct {
+		Data struct {
+			Id uint `json:"id"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(body, &resp); err != nil {
+		t.Fatalf("failed to parse project flock response: %v", err)
+	}
+	return resp.Data.Id
+}