add post and comment entities

add post dao class
add fake service client implementation

Author: lolyzor

app/src/main/java/com/coffeeanddistractions/androidarchitecturecomponentskotlin/database/DatabaseContract.kt

@@ -9,7 +9,7 @@ import android.content.Context
  * Created by Abdu on 12/20/2017.
  */
 
-@Database(version = 2, entities = arrayOf(UserEntity::class), exportSchema = false)
+@Database(version = 3, entities = arrayOf(UserEntity::class), exportSchema = false)
 abstract class ApplicationDatabase : RoomDatabase() {
     abstract public fun userDao(): UserDaoContract
 

app/src/main/java/com/coffeeanddistractions/androidarchitecturecomponentskotlin/database/DatabaseEntities.kt

@@ -1,6 +1,7 @@
 package com.coffeeanddistractions.androidarchitecturecomponentskotlin.database
 
 import android.arch.persistence.room.Entity
+import android.arch.persistence.room.ForeignKey
 import android.arch.persistence.room.PrimaryKey
 
 /*
@@ -12,5 +13,45 @@ class UserEntity {
     @PrimaryKey(autoGenerate = true)
     var id: Long = 0
     var name: String = "Default name"
-    var email: String= "default@email.com"
-}
+    var email: String = "default@email.com"
+}
+
+@Entity(tableName = "posts",
+        foreignKeys = arrayOf(
+                ForeignKey(
+                        entity = UserEntity::class,
+                        parentColumns = arrayOf("id"),
+                        childColumns = arrayOf("userId")
+                )
+        )
+)
+class PostEntity {
+    @PrimaryKey(autoGenerate = true)
+    var id: Long = 0
+    var title: String = "Default Title"
+    var description: String = "Default description"
+    var commentCount: Int = 0
+    var userId: Int = 0
+}
+
+@Entity(tableName = "comments",
+        foreignKeys = arrayOf(
+                ForeignKey(
+                        entity = UserEntity::class,
+                        parentColumns = arrayOf("id"),
+                        childColumns = arrayOf("userId")
+                ),
+                ForeignKey(
+                        entity = PostEntity::class,
+                        parentColumns = arrayOf("id"),
+                        childColumns = arrayOf("postId")
+                )
+        )
+)
+class CommentEntity {
+    @PrimaryKey(autoGenerate = true)
+    var id: Long = 0
+    var body: String = "Default Title"
+    var userId: Int = 0
+    var postId: Int = 0
+}

app/src/main/java/com/coffeeanddistractions/androidarchitecturecomponentskotlin/database/PostDao.kt

@@ -0,0 +1,23 @@
+package com.coffeeanddistractions.androidarchitecturecomponentskotlin.database
+
+import android.arch.lifecycle.LiveData
+import android.arch.persistence.room.Dao
+import android.arch.persistence.room.Insert
+import android.arch.persistence.room.OnConflictStrategy
+import android.arch.persistence.room.Query
+
+/*
+ * Created by Abdu on 12/21/2017.
+ */
+
+@Dao
+interface PostDaoContract {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun createPost(post: PostEntity)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun insertPosts(posts: Array<PostEntity>)
+
+    @Query("select * from posts")
+    fun queryAllPosts() : LiveData<Array<PostEntity>>
+}

app/src/main/java/com/coffeeanddistractions/androidarchitecturecomponentskotlin/models/Models.kt

@@ -6,4 +6,4 @@ package com.coffeeanddistractions.androidarchitecturecomponentskotlin.models
 
 data class User(val id: Long, val name: String, val email: String)
 data class Post(val id: Long, val title: String, val description: String, val commentCount: Int ,val userId: String)
-data class Comment(val id: Long, val text: String, val userId: Long, val postId: Long)
+data class Comment(val id: Long, val body: String, val userId: Long, val postId: Long)

app/src/main/java/com/coffeeanddistractions/androidarchitecturecomponentskotlin/services/ServiceClientImplementation.kt

@@ -16,11 +16,12 @@ class ServiceClientImplementation : ServiceClientDefinition {
     }
 
     suspend override fun getUser(userId: Long): User {
-        // use retrofit for this
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        val user = User(name = "abdu", email = "adil@email.com", id = 1 )
+        delay(3, TimeUnit.SECONDS)
+        return user
     }
 
     suspend override fun updateUser(userId: Long, user: User) {
-        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
+        // todo after retrofit
     }
 }