fix: get news by query category and tags filters

internal/accessor/category/get_by_codes.go

@@ -0,0 +1,19 @@
+package categoryrepository
+
+import (
+	categorydomain "legalgo-BE-go/internal/domain/category"
+)
+
+func (a *accessor) GetIDByCode(code string) (string, error) {
+	var category string
+
+	if err := a.db.
+		Model(&categorydomain.Category{}).
+		Select("id").Where("code = ?", code).
+		Pluck("id", &category).
+		Error; err != nil {
+		return "", err
+	}
+
+	return category, nil
+}

internal/accessor/category/impl.go

@@ -12,6 +12,7 @@ type accessor struct {
 type Category interface {
 	GetAllModel() ([]categorydomain.Category, error)
 	GetByIDs([]string) ([]categorydomain.Category, error)
+	GetIDByCode(string) (string, error)
 	CreateModel(categorydomain.CategoryReq) error
 	Update(categorydomain.Category) error
 	Delete(string) error

internal/accessor/news/get_all.go

@@ -2,13 +2,24 @@ package newsrepository
 
 import newsdomain "legalgo-BE-go/internal/domain/news"
 
-func (a *accessor) GetAll() ([]newsdomain.News, error) {
+func (a *accessor) GetAll(filter newsdomain.NewsFilter) ([]newsdomain.News, error) {
 	var news []newsdomain.News
-
-	if err := a.db.
+	query := a.db.
 		Preload("Tags").
 		Preload("Categories").
-		Preload("Author").
+		Preload("Author")
+
+	if filter.Category != "" {
+		query = query.Joins("JOIN news_categories nc ON nc.news_id = news.id").
+			Where("nc.category_id = ?", filter.Category)
+	}
+
+	if len(filter.Tags) > 0 {
+		query = query.Joins("JOIN news_tags nt ON nt.news_id = news.id").
+			Where("nt.tag_id IN (?)", filter.Tags)
+	}
+
+	if err := query.
 		Find(&news).Error; err != nil {
 		return nil, err
 	}

internal/accessor/news/impl.go

@@ -10,7 +10,7 @@ type accessor struct {
 }
 
 type News interface {
-	GetAll() ([]newsdomain.News, error)
+	GetAll(filter newsdomain.NewsFilter) ([]newsdomain.News, error)
 	GetBySlug(string) (*newsdomain.News, error)
 	Create(newsdomain.News) error
 	Update(newsdomain.News) error

internal/accessor/tag/get_by_codes.go

@@ -0,0 +1,17 @@
+package tagrepository
+
+import tagdomain "legalgo-BE-go/internal/domain/tag"
+
+func (a *accessor) GetIDsByCodes(codes []string) ([]string, error) {
+	var tags []string
+
+	if err := a.db.
+		Model(&tagdomain.Tag{}).
+		Select("id").Where("code IN ?", codes).
+		Pluck("id", &tags).
+		Error; err != nil {
+		return nil, err
+	}
+
+	return tags, nil
+}

internal/accessor/tag/impl.go

@@ -13,6 +13,7 @@ type TagAccessor interface {
 	Create(tagdomain.TagReq) error
 	GetAll() ([]tagdomain.Tag, error)
 	GetByIDs([]string) ([]tagdomain.Tag, error)
+	GetIDsByCodes([]string) ([]string, error)
 	Update(tagdomain.Tag) error
 	Delete(string) error
 }

internal/api/http/news/get_all.go

@@ -1,6 +1,7 @@
 package newshttp
 
 import (
+	newsdomain "legalgo-BE-go/internal/domain/news"
 	newssvc "legalgo-BE-go/internal/services/news"
 	"legalgo-BE-go/internal/utilities/response"
 	"net/http"
@@ -13,8 +14,18 @@ func GetAll(
 	newsSvc newssvc.News,
 ) {
 	router.Get("/news", func(w http.ResponseWriter, r *http.Request) {
+		var (
+			news []newsdomain.News
+			err  error
+		)
 		ctx := r.Context()
-		news, err := newsSvc.GetAll()
+		query := r.URL.Query()
+
+		category := query.Get("category")
+		tags := query.Get("tags")
+
+		news, err = newsSvc.GetAll(category, tags)
+
 		if err != nil {
 			response.ResponseWithErrorCode(
 				ctx,

internal/domain/news/spec.go

@@ -49,3 +49,8 @@ type NewsUpdate struct {
 	IsPremium     bool      `json:"is_premium"`
 	LiveAt        time.Time `json:"live_at"`
 }
+
+type NewsFilter struct {
+	Tags     []string
+	Category string
+}

internal/services/news/get_all.go

@@ -1,7 +1,46 @@
 package newssvc
 
-import newsdomain "legalgo-BE-go/internal/domain/news"
+import (
+	newsdomain "legalgo-BE-go/internal/domain/news"
+	"strings"
+)
 
-func (i *impl) GetAll() ([]newsdomain.News, error) {
-	return i.newsRepo.GetAll()
+func (i *impl) GetAll(categoryCode, tagCodes string) ([]newsdomain.News, error) {
+	var (
+		category string
+		err      error
+	)
+
+	tags := []string{}
+	news := []newsdomain.News{}
+
+	tagCodeArr := strings.Split(tagCodes, " ")
+
+	if len(tagCodeArr) > 0 && tagCodeArr[0] != "" {
+		tags, err = i.tagRepo.GetIDsByCodes(tagCodeArr)
+		if err != nil {
+			return news, err
+		}
+
+		if len(tags) < 1 {
+			return news, nil
+		}
+	}
+
+	if categoryCode != "" {
+		category, err = i.categoryRepo.GetIDByCode(categoryCode)
+		if err != nil {
+			return news, err
+		}
+
+		if category == "" {
+			return news, nil
+		}
+	}
+
+	filter := newsdomain.NewsFilter{
+		Tags:     tags,
+		Category: category,
+	}
+	return i.newsRepo.GetAll(filter)
 }

internal/services/news/impl.go

@@ -16,7 +16,7 @@ type impl struct {
 }
 
 type News interface {
-	GetAll() ([]newsdomain.News, error)
+	GetAll(string, string) ([]newsdomain.News, error)
 	GetBySlug(string) (*newsdomain.News, error)
 	Create(newsdomain.NewsReq, string) error
 	Update(string, newsdomain.NewsUpdate) error