update

README.md

@@ -15,6 +15,35 @@ database:
   port: "5432"
 ```
 
+## Default Models
+UGin has two models (Post and Tag) as boilerplate to show relational database useage.
+
+**/model/post-model.go** content:
+```
+type Post struct {
+	gorm.Model
+	Name        string `json:"Name" gorm:"type:varchar(255)"`
+	Description string `json:"Description"  gorm:"type:text"`
+	Tags        []Tag  // One-To-Many relationship (has many - use Tag's UserID as foreign key)
+}
+
+type Tag struct {
+	gorm.Model
+	PostID      uint   `gorm:"index"` // Foreign key (belongs to)
+	Name        string `json:"Name" gorm:"type:varchar(255)"`
+	Description string `json:"Description" gorm:"type:text"`
+}
+```
+
+**Query parameters:**
+```
+/posts/?limit=2
+/posts/?offset=0
+/posts/?name=Third
+/posts/?description=My
+/posts/?order=name|asc
+```
+
 ## Filtering, Search and Pagination
 UGin has it's own filtering, search and pagination system. You just need to use these parameters.
 

controller/post-controller.go

@@ -18,6 +18,9 @@ var err error
 // Post struct alias
 type Post = model.Post
 
+// Tag struct alias
+type Tag = model.Tag
+
 // Data is mainle generated for filtering and pagination
 type Data struct {
 	Total int64
@@ -28,11 +31,19 @@ func GetPost(c *gin.Context) {
 	db = include.GetDB()
 	id := c.Params.ByName("id")
 	var post Post
+	var tags []Tag
 
 	if err := db.Where("id = ? ", id).First(&post).Error; err != nil {
+
 		c.AbortWithStatus(404)
 		fmt.Println(err)
+
 	} else {
+
+		db.Model(&post).Related(&tags)
+		// SELECT * FROM "tags"  WHERE ("post_id" = 1)
+
+		post.Tags = tags
 		c.JSON(200, post)
 	}
 }

include/database.go

@@ -54,6 +54,7 @@ func InitDB() *gorm.DB {
 
 	}
 
+	db.LogMode(true)
 	DB = db
 
 	return DB

main.go

@@ -18,7 +18,7 @@ func main() {
 
 	db = include.InitDB()
 	defer db.Close()
-	db.AutoMigrate(&model.Post{})
+	db.AutoMigrate(&model.Post{}, &model.Tag{})
 
 	router := gin.Default()
 	router.Use(include.CORS())

model/post-model.go

@@ -6,17 +6,32 @@ import (
 
 type Post struct {
 	gorm.Model
-	Name        string `json:"Name" gorm:"type:varchar(200)"`
+	Name        string `json:"Name" gorm:"type:varchar(255)"`
 	Description string `json:"Description"  gorm:"type:text"`
+	Tags        []Tag  // One-To-Many relationship (has many - use Tag's UserID as foreign key)
 }
 
+type Tag struct {
+	gorm.Model
+	PostID      uint   `gorm:"index"` // Foreign key (belongs to)
+	Name        string `json:"Name" gorm:"type:varchar(255)"`
+	Description string `json:"Description" gorm:"type:text"`
+}
+
+// You can send this data to API /posts/ endpoint with POST method to create dummy content
 /*
 {
-    "ID": 1,
-    "CreatedAt": "2019-03-10T23:04:15.78791+03:00",
-    "UpdatedAt": "2019-03-10T23:04:15.78791+03:00",
-    "DeletedAt": null,
     "Name": "Hello World",
-    "Description": "This is your first post"
+    "Description": "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.",
+    "Tags": [
+        {
+            "Name": "lorem",
+            "Description": "This is lorem tag"
+		},
+		{
+            "Name": "ipsum",
+            "Description": "This is ipsum tag"
+        }
+    ]
 }
 */