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Commit 3c5404b

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add @relation and @Embedded to PostEntity and implementations
1 parent c1b494b commit 3c5404b

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17 files changed

+519
-62
lines changed

17 files changed

+519
-62
lines changed

‎app/src/main/java/com/smarttoolfactory/postdynamichilt/postlist/PostListFragment.kt

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -16,7 +16,8 @@ class PostListFragment : DynamicNavigationFragment<FragmentPostListBinding>() {
1616

1717
override fun getLayoutRes(): Int = R.layout.fragment_post_list
1818

19-
private val viewModel: PostListViewModel by viewModels()
19+
// private val viewModel: PostListViewModel by viewModels()
20+
private val viewModel: PostStatusViewModel by viewModels()
2021

2122
private lateinit var postListAdapter: PostListAdapter
2223

Lines changed: 75 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,75 @@
1+
package com.smarttoolfactory.postdynamichilt.postlist
2+
3+
import androidx.hilt.Assisted
4+
import androidx.hilt.lifecycle.ViewModelInject
5+
import androidx.lifecycle.LiveData
6+
import androidx.lifecycle.SavedStateHandle
7+
import com.smarttoolfactory.core.util.Event
8+
import com.smarttoolfactory.core.util.convertToFlowViewState
9+
import com.smarttoolfactory.core.viewstate.Status
10+
import com.smarttoolfactory.core.viewstate.ViewState
11+
import com.smarttoolfactory.domain.model.Post
12+
import com.smarttoolfactory.domain.usecase.GetPostsWithStatusUseCaseFlow
13+
import kotlinx.coroutines.CoroutineScope
14+
import kotlinx.coroutines.flow.launchIn
15+
import kotlinx.coroutines.flow.onEach
16+
import kotlinx.coroutines.flow.onStart
17+
18+
class PostStatusViewModel @ViewModelInject constructor(
19+
private val coroutineScope: CoroutineScope,
20+
private val getPostsUseCase: GetPostsWithStatusUseCaseFlow,
21+
@Assisted savedStateHandle: SavedStateHandle
22+
) : AbstractPostListVM() {
23+
24+
private val _goToDetailScreen =
25+
savedStateHandle.getLiveData<Event<Post>>(POST_DETAIL)
26+
27+
override val goToDetailScreen: LiveData<Event<Post>>
28+
get() = _goToDetailScreen
29+
30+
private val _postViewState =
31+
savedStateHandle.getLiveData<ViewState<List<Post>>>(POST_LIST)
32+
33+
override val postViewState: LiveData<ViewState<List<Post>>>
34+
get() = _postViewState
35+
36+
/**
37+
* Function to retrieve data from repository with offline-first which checks
38+
* local data source first.
39+
*
40+
* * Check out Local Source first
41+
* * If empty data or null returned throw empty set exception
42+
* * If error occurred while fetching data from remote: Try to fetch data from db
43+
* * If data is fetched from remote source: delete old data, save new data and return new data
44+
* * If both network and db don't have any data throw empty set exception
45+
*
46+
*/
47+
override fun getPosts() {
48+
49+
getPostsUseCase.getPostFlowOfflineFirst()
50+
.convertToFlowViewState()
51+
.onStart {
52+
_postViewState.value = ViewState(status = Status.LOADING)
53+
}
54+
.onEach {
55+
_postViewState.value = it
56+
}
57+
.launchIn(coroutineScope)
58+
}
59+
60+
override fun refreshPosts() {
61+
getPostsUseCase.getPostFlowOfflineLast()
62+
.convertToFlowViewState()
63+
.onStart {
64+
_postViewState.value = ViewState(status = Status.LOADING)
65+
}
66+
.onEach {
67+
_postViewState.value = it
68+
}
69+
.launchIn(coroutineScope)
70+
}
71+
72+
override fun onClick(post: Post) {
73+
_goToDetailScreen.value = Event(post)
74+
}
75+
}
Lines changed: 118 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,118 @@
1+
{
2+
"formatVersion": 1,
3+
"database": {
4+
"version": 2,
5+
"identityHash": "b146a82a326ba2e588d49914b9f527b2",
6+
"entities": [
7+
{
8+
"tableName": "post",
9+
"createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER NOT NULL, `userId` INTEGER NOT NULL, `title` TEXT NOT NULL, `body` TEXT NOT NULL, PRIMARY KEY(`id`))",
10+
"fields": [
11+
{
12+
"fieldPath": "id",
13+
"columnName": "id",
14+
"affinity": "INTEGER",
15+
"notNull": true
16+
},
17+
{
18+
"fieldPath": "userId",
19+
"columnName": "userId",
20+
"affinity": "INTEGER",
21+
"notNull": true
22+
},
23+
{
24+
"fieldPath": "title",
25+
"columnName": "title",
26+
"affinity": "TEXT",
27+
"notNull": true
28+
},
29+
{
30+
"fieldPath": "body",
31+
"columnName": "body",
32+
"affinity": "TEXT",
33+
"notNull": true
34+
}
35+
],
36+
"primaryKey": {
37+
"columnNames": [
38+
"id"
39+
],
40+
"autoGenerate": false
41+
},
42+
"indices": [],
43+
"foreignKeys": []
44+
},
45+
{
46+
"tableName": "post_status",
47+
"createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`id` INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, `userAccountId` INTEGER NOT NULL, `postId` INTEGER NOT NULL, `displayCount` INTEGER NOT NULL, `isFavorite` INTEGER NOT NULL, FOREIGN KEY(`postId`) REFERENCES `post`(`id`) ON UPDATE NO ACTION ON DELETE NO ACTION )",
48+
"fields": [
49+
{
50+
"fieldPath": "id",
51+
"columnName": "id",
52+
"affinity": "INTEGER",
53+
"notNull": true
54+
},
55+
{
56+
"fieldPath": "userAccountId",
57+
"columnName": "userAccountId",
58+
"affinity": "INTEGER",
59+
"notNull": true
60+
},
61+
{
62+
"fieldPath": "postId",
63+
"columnName": "postId",
64+
"affinity": "INTEGER",
65+
"notNull": true
66+
},
67+
{
68+
"fieldPath": "displayCount",
69+
"columnName": "displayCount",
70+
"affinity": "INTEGER",
71+
"notNull": true
72+
},
73+
{
74+
"fieldPath": "isFavorite",
75+
"columnName": "isFavorite",
76+
"affinity": "INTEGER",
77+
"notNull": true
78+
}
79+
],
80+
"primaryKey": {
81+
"columnNames": [
82+
"id"
83+
],
84+
"autoGenerate": true
85+
},
86+
"indices": [
87+
{
88+
"name": "index_post_status_userAccountId_postId",
89+
"unique": false,
90+
"columnNames": [
91+
"userAccountId",
92+
"postId"
93+
],
94+
"createSql": "CREATE INDEX IF NOT EXISTS `index_post_status_userAccountId_postId` ON `${TABLE_NAME}` (`userAccountId`, `postId`)"
95+
}
96+
],
97+
"foreignKeys": [
98+
{
99+
"table": "post",
100+
"onDelete": "NO ACTION",
101+
"onUpdate": "NO ACTION",
102+
"columns": [
103+
"postId"
104+
],
105+
"referencedColumns": [
106+
"id"
107+
]
108+
}
109+
]
110+
}
111+
],
112+
"views": [],
113+
"setupQueries": [
114+
"CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
115+
"INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, 'b146a82a326ba2e588d49914b9f527b2')"
116+
]
117+
}
118+
}

‎libraries/data/src/main/java/com/smarttoolfactory/data/db/PostDaoCoroutines.kt

Lines changed: 0 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,6 @@ import androidx.room.Delete
55
import androidx.room.Insert
66
import androidx.room.OnConflictStrategy
77
import androidx.room.Query
8-
import androidx.room.Update
98
import com.smarttoolfactory.data.model.PostEntity
109
import kotlinx.coroutines.flow.Flow
1110

@@ -36,7 +35,6 @@ interface PostDaoCoroutines {
3635
*
3736
* *If database is empty returns empty list []
3837
*/
39-
// Suspend
4038
@Query("SELECT * FROM post")
4139
suspend fun getPostList(): List<PostEntity>
4240

@@ -58,12 +56,6 @@ interface PostDaoCoroutines {
5856
// @Query("SELECT * FROM post ORDER BY displayCount DESC")
5957
// suspend fun getDisplayedMostPosts(): List<PostEntity>
6058

61-
/**
62-
* Update a post's favorite or display count status.
63-
*/
64-
@Update
65-
suspend fun updatePostFavoriteOrSelectStatus(postEntity: PostEntity)
66-
6759
/*
6860
***** Flow ******
6961
*/

‎libraries/data/src/main/java/com/smarttoolfactory/data/db/PostDatabase.kt

Lines changed: 18 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -2,32 +2,42 @@ package com.smarttoolfactory.data.db
22

33
import androidx.room.Database
44
import androidx.room.RoomDatabase
5-
import com.smarttoolfactory.data.model.PostAttention
5+
import androidx.room.migration.Migration
6+
import androidx.sqlite.db.SupportSQLiteDatabase
67
import com.smarttoolfactory.data.model.PostEntity
8+
import com.smarttoolfactory.data.model.PostStatus
79

810
const val DATABASE_NAME = "post.db"
911

1012
@Database(
11-
entities = [PostEntity::class, PostAttention::class],
12-
version = 1,
13+
entities = [PostEntity::class, PostStatus::class],
14+
version = 2,
1315
exportSchema = true
1416
)
1517
abstract class PostDatabase : RoomDatabase() {
1618
abstract fun postDao(): PostDaoCoroutines
1719
abstract fun postDaoRxJava(): PostDaoRxJava3
20+
abstract fun postStatusDao(): PostStatusDao
1821
}
1922

20-
/*
2123
val MIGRATION_1_2: Migration = object : Migration(1, 2) {
2224

2325
override fun migrate(database: SupportSQLiteDatabase) {
26+
2427
database.execSQL(
25-
"ALTER TABLE post ADD COLUMN displayCount INTEGER NOT NULL DEFAULT 0"
28+
"CREATE TABLE IF NOT EXISTS post_status " +
29+
"(id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL, " +
30+
"userAccountId INTEGER NOT NULL, " +
31+
"postId INTEGER NOT NULL, " +
32+
"displayCount INTEGER NOT NULL, " +
33+
"isFavorite INTEGER NOT NULL, " +
34+
"FOREIGN KEY(postId) REFERENCES post(id) " +
35+
"ON UPDATE NO ACTION ON DELETE NO ACTION )"
2636
)
2737

2838
database.execSQL(
29-
"ALTER TABLE post ADD COLUMN isFavorite INTEGER NOT NULL DEFAULT 0"
39+
"CREATE INDEX IF NOT EXISTS index_post_status_postId " +
40+
"ON post_status (userAccountId, postId)"
3041
)
3142
}
32-
}
33-
*/
43+
}
Lines changed: 29 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,29 @@
1+
package com.smarttoolfactory.data.db
2+
3+
import androidx.room.Dao
4+
import androidx.room.Embedded
5+
import androidx.room.Query
6+
import androidx.room.Relation
7+
import androidx.room.Transaction
8+
import com.smarttoolfactory.data.model.PostAndStatus
9+
import com.smarttoolfactory.data.model.PostEntity
10+
import com.smarttoolfactory.data.model.PostStatus
11+
12+
@Dao
13+
interface PostStatusDao {
14+
15+
/**
16+
* Update a post's favorite or display count status.
17+
*/
18+
// @Update
19+
// suspend fun updatePostStatus(postStatus: PostStatus)
20+
21+
/**
22+
* This method uses [Embedded] and [Relation] annotations to create a class that contains
23+
* [PostEntity] and [PostStatus] which is display count and like belong to this [PostEntity]
24+
* by a specific account that is currently logged in
25+
*/
26+
@Transaction
27+
@Query("SELECT * FROM post")
28+
suspend fun getPostWithStatus(): List<PostAndStatus>
29+
}

‎libraries/data/src/main/java/com/smarttoolfactory/data/di/DataModule.kt

Lines changed: 17 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -5,10 +5,14 @@ import com.smarttoolfactory.data.repository.PostRepositoryCoroutines
55
import com.smarttoolfactory.data.repository.PostRepositoryCoroutinesImpl
66
import com.smarttoolfactory.data.repository.PostRepositoryRxJava3
77
import com.smarttoolfactory.data.repository.PostRepositoryRxJava3Impl
8+
import com.smarttoolfactory.data.repository.PostStatusRepository
9+
import com.smarttoolfactory.data.repository.PostStatusRepositoryImpl
810
import com.smarttoolfactory.data.source.LocalDataSourceRxJava3Impl
911
import com.smarttoolfactory.data.source.LocalPostDataSourceCoroutines
1012
import com.smarttoolfactory.data.source.LocalPostDataSourceCoroutinesImpl
1113
import com.smarttoolfactory.data.source.LocalPostDataSourceRxJava3
14+
import com.smarttoolfactory.data.source.LocalPostStatusSource
15+
import com.smarttoolfactory.data.source.LocalPostStatusSourceImpl
1216
import com.smarttoolfactory.data.source.RemoteDataSourceRxJava3Impl
1317
import com.smarttoolfactory.data.source.RemotePostDataSourceCoroutines
1418
import com.smarttoolfactory.data.source.RemotePostDataSourceCoroutinesImpl
@@ -59,6 +63,19 @@ interface DataModule {
5963
@Binds
6064
fun bindRepositoryRxJava3(repository: PostRepositoryRxJava3Impl):
6165
PostRepositoryRxJava3
66+
67+
/*
68+
Post Status
69+
*/
70+
@Singleton
71+
@Binds
72+
fun bindLocalPostStatusSource(localDataSource: LocalPostStatusSourceImpl):
73+
LocalPostStatusSource
74+
75+
@Singleton
76+
@Binds
77+
fun bindPostStatusRepository(repository: PostStatusRepositoryImpl):
78+
PostStatusRepository
6279
}
6380

6481
/**

‎libraries/data/src/main/java/com/smarttoolfactory/data/di/DatabaseModule.kt

Lines changed: 9 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -3,9 +3,11 @@ package com.smarttoolfactory.data.di
33
import android.app.Application
44
import androidx.room.Room
55
import com.smarttoolfactory.data.db.DATABASE_NAME
6+
import com.smarttoolfactory.data.db.MIGRATION_1_2
67
import com.smarttoolfactory.data.db.PostDaoCoroutines
78
import com.smarttoolfactory.data.db.PostDaoRxJava3
89
import com.smarttoolfactory.data.db.PostDatabase
10+
import com.smarttoolfactory.data.db.PostStatusDao
911
import dagger.Module
1012
import dagger.Provides
1113
import dagger.hilt.InstallIn
@@ -24,18 +26,18 @@ class DatabaseModule {
2426
PostDatabase::class.java,
2527
DATABASE_NAME
2628
)
27-
// .addMigrations(MIGRATION_1_2)
29+
.addMigrations(MIGRATION_1_2)
2830
.build()
2931
}
3032

3133
@Singleton
3234
@Provides
33-
fun provideWPostDao(appDatabase: PostDatabase): PostDaoCoroutines {
34-
return appDatabase.postDao()
35-
}
35+
fun providePostDao(appDatabase: PostDatabase): PostDaoCoroutines = appDatabase.postDao()
3636

3737
@Provides
38-
fun provideWPostDaoRxJava3(appDatabase: PostDatabase): PostDaoRxJava3 {
39-
return appDatabase.postDaoRxJava()
40-
}
38+
fun providePostDaoRxJava3(appDatabase: PostDatabase): PostDaoRxJava3 =
39+
appDatabase.postDaoRxJava()
40+
41+
@Provides
42+
fun providePostStatusDao(appDatabase: PostDatabase): PostStatusDao = appDatabase.postStatusDao()
4143
}

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