1+ package fr.free.nrw.commons.upload.depicts
2+
3+ import androidx.room.*
4+ import fr.free.nrw.commons.upload.structure.depictions.DepictedItem
5+ import kotlinx.coroutines.Dispatchers
6+ import kotlinx.coroutines.launch
7+ import kotlinx.coroutines.runBlocking
8+ import java.util.*
9+
10+ /* *
11+ * Dao class for DepictsRoomDataBase
12+ */
13+ @Dao
14+ abstract class DepictsDao {
15+
16+ /* *
17+ * insert Depicts in DepictsRoomDataBase
18+ */
19+ @Insert(onConflict = OnConflictStrategy .REPLACE )
20+ abstract suspend fun insert (depictedItem : Depicts )
21+
22+ /* *
23+ * get all Depicts from roomdatabase
24+ */
25+ @Query(" Select * From depicts_table order by lastUsed DESC"
26+ abstract suspend fun getAllDepict (): List <Depicts >
27+
28+ /* *
29+ * get all Depicts which need to delete from roomdatabase
30+ */
31+ @Query(" Select * From depicts_table order by lastUsed DESC LIMIT :n OFFSET 10"
32+ abstract suspend fun getItemToDelete (n : Int ): List <Depicts >
33+
34+ /* *
35+ * Delete Depicts from roomdatabase
36+ */
37+ @Delete
38+ abstract suspend fun delete (depicts : Depicts )
39+
40+ lateinit var allDepict: List <Depicts >
41+ lateinit var listOfDelete: List <Depicts >
42+
43+ /* *
44+ * get all depicts from DepictsRoomDatabase
45+ */
46+ fun depictsList (): List <Depicts > {
47+ runBlocking {
48+ launch(Dispatchers .IO ) {
49+ allDepict = getAllDepict()
50+ }
51+ }
52+ return allDepict
53+ }
54+
55+ /* *
56+ * insert Depicts in DepictsRoomDataBase
57+ */
58+ fun insertDepict (depictes : Depicts ) {
59+ runBlocking {
60+ launch(Dispatchers .IO ) {
61+ insert(depictes)
62+ }
63+ }
64+ }
65+
66+ /* *
67+ * get all Depicts item which need to delete
68+ */
69+ fun getItemTodelete (number : Int ): List <Depicts > {
70+ runBlocking {
71+ launch(Dispatchers .IO ) {
72+ listOfDelete = getItemToDelete(number)
73+ }
74+ }
75+ return listOfDelete
76+ }
77+
78+ /* *
79+ * delete Depicts in DepictsRoomDataBase
80+ */
81+ fun deleteDepicts (depictes : Depicts ) {
82+ runBlocking {
83+ launch(Dispatchers .IO ) {
84+ delete(depictes)
85+ }
86+ }
87+ }
88+
89+ /* *
90+ * save Depicts in DepictsRoomDataBase
91+ */
92+ fun savingDepictsInRoomDataBase (listDepictedItem : List <DepictedItem >) {
93+ var numberofItemInRoomDataBase: Int
94+ val maxNumberOfItemSaveInRoom = 10
95+
96+ for (depictsItem in listDepictedItem) {
97+ depictsItem.isSelected = false
98+ insertDepict(Depicts (depictsItem, Date ()))
99+ }
100+
101+ numberofItemInRoomDataBase = depictsList().size
102+ // delete the depictItem from depictsroomdataBase when number of element in depictsroomdataBase is greater than 10
103+ if (numberofItemInRoomDataBase > maxNumberOfItemSaveInRoom) {
104+
105+ val listOfDepictsToDelete: List <Depicts > =
106+ getItemTodelete(numberofItemInRoomDataBase)
107+ for (i in listOfDepictsToDelete) {
108+ deleteDepicts(i)
109+ }
110+ }
111+ }
112+ }
0 commit comments