Blogs listing + Categories

backend/api/blogs/blogs.go

@@ -10,11 +10,17 @@ import (
 )
 
 func HandleGetBlogs(w http.ResponseWriter, r *http.Request) {
+	category := r.URL.Query().Get("category")
 	var blog []models.Blog
-	count, err := core.DB.NewSelect().
+	q := core.DB.NewSelect().
 		Model(&blog).
-		Relation("Author").
-		ScanAndCount(context.Background())
+		Relation("Author")
+
+	if len(category) > 0 {
+		q.Where("category = ?", category)
+	}
+
+	count, err := q.ScanAndCount(context.Background())
 	if err != nil {
 		core.JSONError{
 			Status:  core.Error,

backend/api/blogs/categories.go

@@ -0,0 +1,41 @@
+package blogs
+
+import (
+	"context"
+	"net/http"
+
+	"fr.latosa-escrima/core"
+	"fr.latosa-escrima/core/models"
+)
+
+func HandleCategories(w http.ResponseWriter, r *http.Request) {
+	var categories []struct {
+		Category string `json:"category"`
+		Count    int    `json:"count"`
+	}
+	err := core.DB.NewSelect().
+		Model((*models.Blog)(nil)).
+		Column("category").
+		ColumnExpr("COUNT(*) AS count").
+		Where("category IS NOT NULL AND category != ''").
+		Group("category").
+		// Count the occurrences of each distinct category
+		Having("COUNT(category) > 0").
+		// Sort the results by the count in descending order
+		Order("count DESC").
+		Scan(context.Background(), &categories)
+
+	if err != nil {
+		core.JSONError{
+			Status:  core.Error,
+			Message: err.Error(),
+		}.Respond(w, http.StatusInternalServerError)
+		return
+	}
+
+	core.JSONSuccess{
+		Status:  core.Success,
+		Message: "Categories found.",
+		Data:    categories,
+	}.Respond(w, http.StatusOK)
+}

backend/api/blogs_routes.go

@@ -6,10 +6,18 @@ import (
 )
 
 var BlogsRoutes = map[string]core.Handler{
+	"/blogs": {
+		Handler:     blogs.HandleGetBlogs,
+		Middlewares: []core.Middleware{Methods("GET")},
+	},
 	"/blogs/new": {
 		Handler: blogs.HandleNew,
 		Middlewares: []core.Middleware{Methods(("POST")),
 			HasPermissions("blogs", "insert"), AuthJWT}},
+	"/blogs/categories": {
+		Handler:     blogs.HandleCategories,
+		Middlewares: []core.Middleware{Methods("GET")},
+	},
 	"/blogs/{slug}": {
 		Handler:     blogs.HandleBlog,
 		Middlewares: []core.Middleware{Methods("GET")}},

backend/cmd/migrate/migrations/20250224080441_update_blog_category.go

@@ -0,0 +1,24 @@
+package migrations
+
+import (
+	"context"
+	"fmt"
+
+	"fr.latosa-escrima/core/models"
+	"github.com/uptrace/bun"
+)
+
+func init() {
+	Migrations.MustRegister(func(ctx context.Context, db *bun.DB) error {
+		fmt.Print(" [up migration] ")
+		_, err := db.
+			NewAddColumn().
+			Model((*models.Blog)(nil)).
+			ColumnExpr("category TEXT").
+			Exec(ctx)
+		return err
+	}, func(ctx context.Context, db *bun.DB) error {
+		fmt.Print(" [down migration] ")
+		return nil
+	})
+}

backend/core/models/blogs.go

@@ -18,6 +18,7 @@ type Blog struct {
 	Published time.Time `bun:"published,default:current_timestamp" json:"published"`
 	Summary   string    `bun:"summary" json:"summary"`
 	Image     string    `bun:"image" json:"image"`
+	Category  string    `bun:"category" json:"category,omitempty"`
 
 	Author User `bun:"rel:belongs-to,join:author_id=user_id" json:"author"`
 }