diff --git a/src/app/build.gradle b/src/app/build.gradle
index 0876475..fceb360 100644
--- a/src/app/build.gradle
+++ b/src/app/build.gradle
@@ -1,6 +1,7 @@
 plugins {
     id 'com.android.application'
     id 'org.jetbrains.kotlin.android'
+    id 'kotlin-kapt'
 }
 
 android {
@@ -49,7 +50,10 @@ dependencies {
     // Room
     implementation 'androidx.room:room-runtime:2.5.1'
     implementation 'androidx.room:room-ktx:2.5.1'
+    kapt "androidx.room:room-compiler:2.5.1"
 
+
+    implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.5.1'
     implementation 'androidx.core:core-ktx:1.9.0'
     implementation 'androidx.appcompat:appcompat:1.6.1'
     implementation 'com.google.android.material:material:1.8.0'
diff --git a/src/app/src/main/AndroidManifest.xml b/src/app/src/main/AndroidManifest.xml
index fc1af9b..8208cf0 100644
--- a/src/app/src/main/AndroidManifest.xml
+++ b/src/app/src/main/AndroidManifest.xml
@@ -5,6 +5,7 @@
     <uses-permission android:name="android.permission.INTERNET" />
 
     <application
+        android:name=".application.ScorItApplication"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
diff --git a/src/app/src/main/java/uca/iut/clermont/api/ApiManager.kt b/src/app/src/main/java/uca/iut/clermont/api/ApiManager.kt
index a028163..57ce9bf 100644
--- a/src/app/src/main/java/uca/iut/clermont/api/ApiManager.kt
+++ b/src/app/src/main/java/uca/iut/clermont/api/ApiManager.kt
@@ -1,11 +1,6 @@
 package uca.iut.clermont.api
 
-import AreaManager
-import CompetitionsManager
-import DataManager
-import MatchesManager
-import PeopleManager
-import TeamsManager
+
 import kotlinx.coroutines.coroutineScope
 import retrofit2.Retrofit
 import retrofit2.converter.gson.GsonConverterFactory
diff --git a/src/app/src/main/java/uca/iut/clermont/application/ScorItApplication.kt b/src/app/src/main/java/uca/iut/clermont/application/ScorItApplication.kt
new file mode 100644
index 0000000..939d2d9
--- /dev/null
+++ b/src/app/src/main/java/uca/iut/clermont/application/ScorItApplication.kt
@@ -0,0 +1,10 @@
+package uca.iut.clermont.application
+
+import android.app.Application
+import uca.iut.clermont.data.BDD
+
+class ScorItApplication: Application() {
+
+    val db: BDD by lazy { BDD.getInstance(this) }
+
+}
\ No newline at end of file
diff --git a/src/app/src/main/java/uca/iut/clermont/converters/Converters.kt b/src/app/src/main/java/uca/iut/clermont/converters/Converters.kt
new file mode 100644
index 0000000..ee1bca3
--- /dev/null
+++ b/src/app/src/main/java/uca/iut/clermont/converters/Converters.kt
@@ -0,0 +1,30 @@
+package uca.iut.clermont.converters
+
+import androidx.room.TypeConverter
+import com.google.gson.Gson
+import uca.iut.clermont.model.Area
+import uca.iut.clermont.model.Season
+
+class Converters {
+
+    @TypeConverter
+    fun fromJson(json: String): Season {
+        return Gson().fromJson(json, Season::class.java)
+    }
+
+    @TypeConverter
+    fun toJson(season: Season): String {
+        return Gson().toJson(season)
+    }
+
+    @TypeConverter
+    fun fromJsonArea(json: String): Area {
+        return Gson().fromJson(json, Area::class.java)
+    }
+
+    @TypeConverter
+    fun toJson(area: Area): String {
+        return Gson().toJson(area)
+    }
+
+}
\ No newline at end of file
diff --git a/src/app/src/main/java/uca/iut/clermont/data/BDD.kt b/src/app/src/main/java/uca/iut/clermont/data/BDD.kt
index 78f6798..2287ef3 100644
--- a/src/app/src/main/java/uca/iut/clermont/data/BDD.kt
+++ b/src/app/src/main/java/uca/iut/clermont/data/BDD.kt
@@ -1,13 +1,13 @@
 package uca.iut.clermont.data
 
 import android.content.Context
-import androidx.room.Database
-import androidx.room.Room
-import androidx.room.RoomDatabase
+import androidx.room.*
+import uca.iut.clermont.converters.Converters
 import uca.iut.clermont.data.dao.CompetitionDao
 import uca.iut.clermont.model.Competition
 
 @Database(entities = arrayOf(Competition::class), version = 1)
+@TypeConverters(Converters::class)
 abstract class BDD : RoomDatabase() {
 
     abstract fun competitionDao(): CompetitionDao
@@ -24,6 +24,7 @@ abstract class BDD : RoomDatabase() {
                     "ScorItDB"
                 ).build()
                 INSTANCE = db
+                INSTANCE!!
             }
 
     }
diff --git a/src/app/src/main/java/uca/iut/clermont/data/StubData.kt b/src/app/src/main/java/uca/iut/clermont/data/StubData.kt
index 862cd53..0ddb454 100644
--- a/src/app/src/main/java/uca/iut/clermont/data/StubData.kt
+++ b/src/app/src/main/java/uca/iut/clermont/data/StubData.kt
@@ -1,11 +1,6 @@
 package uca.iut.clermont.data
 
-import AreaManager
-import CompetitionsManager
-import DataManager
-import MatchesManager
-import PeopleManager
-import TeamsManager
+
 import uca.iut.clermont.model.*
 import java.util.*
 
diff --git a/src/app/src/main/java/uca/iut/clermont/data/dao/CompetitionDao.kt b/src/app/src/main/java/uca/iut/clermont/data/dao/CompetitionDao.kt
index 1cd904c..7101d5c 100644
--- a/src/app/src/main/java/uca/iut/clermont/data/dao/CompetitionDao.kt
+++ b/src/app/src/main/java/uca/iut/clermont/data/dao/CompetitionDao.kt
@@ -13,10 +13,13 @@ interface CompetitionDao {
     @Delete
     fun deleteCompetition(competition: Competition)
 
-    @Query("SELECT * FROM competition")
+    @Query("SELECT * FROM competitions")
     fun getAllCompetitions(): Flow<List<Competition>>
 
     @Insert
     fun insertCompetition(competition: Competition)
 
+    @Query("SELECT * FROM competitions WHERE id=:id")
+    fun getCompetitionById(id: Int): Flow<Competition?>
+
 }
\ No newline at end of file
diff --git a/src/app/src/main/java/uca/iut/clermont/model/Competition.kt b/src/app/src/main/java/uca/iut/clermont/model/Competition.kt
index ade30ee..6ee6350 100644
--- a/src/app/src/main/java/uca/iut/clermont/model/Competition.kt
+++ b/src/app/src/main/java/uca/iut/clermont/model/Competition.kt
@@ -11,6 +11,6 @@ class Competition(
     @ColumnInfo val code: String,
     @ColumnInfo val type: String,
     @ColumnInfo val emblem: String,
-    @ColumnInfo val currentSeason: Season,
+    val currentSeason: Season,
     val area: Area
 )
\ No newline at end of file
diff --git a/src/app/src/main/java/uca/iut/clermont/model/DataManager.kt b/src/app/src/main/java/uca/iut/clermont/model/DataManager.kt
index 0910fc8..a7db6b9 100644
--- a/src/app/src/main/java/uca/iut/clermont/model/DataManager.kt
+++ b/src/app/src/main/java/uca/iut/clermont/model/DataManager.kt
@@ -1,4 +1,4 @@
-import uca.iut.clermont.model.*
+package uca.iut.clermont.model
 
 abstract class DataManager {
     abstract val areaMgr: AreaManager
diff --git a/src/app/src/main/java/uca/iut/clermont/view/DetailFragment.kt b/src/app/src/main/java/uca/iut/clermont/view/DetailFragment.kt
index 6aa8f54..5e962b7 100644
--- a/src/app/src/main/java/uca/iut/clermont/view/DetailFragment.kt
+++ b/src/app/src/main/java/uca/iut/clermont/view/DetailFragment.kt
@@ -15,9 +15,11 @@ import uca.iut.clermont.R
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
+import uca.iut.clermont.application.ScorItApplication
 import uca.iut.clermont.model.Competition
 import uca.iut.clermont.view.adapter.MatchesAdapter
 import uca.iut.clermont.view.viewModel.DetailViewModel
+import uca.iut.clermont.view.viewModel.ViewModelFactory
 import java.text.SimpleDateFormat
 import java.util.*
 
@@ -25,8 +27,9 @@ class DetailFragment : Fragment() {
 
     private var isLiked = false
     private lateinit var competition: Competition
-    private val viewModel: DetailViewModel by viewModels()
-
+    private val viewModel: DetailViewModel by viewModels {
+        ViewModelFactory((requireActivity().application as ScorItApplication).db.competitionDao())
+    }
 
     override fun onCreateView(
         inflater: LayoutInflater,
@@ -36,6 +39,7 @@ class DetailFragment : Fragment() {
 
         val view = inflater.inflate(R.layout.fragment_detail, container, false)
 
+        val likeButton = view.findViewById<ImageButton>(R.id.buttonLike)
         val id = arguments?.getInt("idItem")!!
 
         viewModel.competition.observe(viewLifecycleOwner, Observer { comp ->
@@ -54,6 +58,24 @@ class DetailFragment : Fragment() {
             }
         })
 
+        viewModel.check(id).observe(viewLifecycleOwner, Observer { competition ->
+            competition?.let {
+                isLiked = true
+                likeButton.setImageResource(R.drawable.full_like)
+            }
+        })
+
+        likeButton.setOnClickListener {
+            if (isLiked) {
+                viewModel.deleteCompetition(competition)
+                likeButton.setImageResource(R.drawable.empty_like)
+            } else {
+                viewModel.insertCompetition(competition)
+                likeButton.setImageResource(R.drawable.full_like)
+            }
+            isLiked = !isLiked
+        }
+
         viewModel.competitionMatches.observe(viewLifecycleOwner, Observer { competitions ->
             competitions?.let {
                 initRecyclerView(view)
@@ -61,14 +83,12 @@ class DetailFragment : Fragment() {
             }
         })
 
-
         viewModel.loadMatches(id)
 
         return view;
     }
 
     private fun initializeView(view: View) {
-        val button = view.findViewById<ImageButton>(R.id.buttonLike)
         val buttonExit = view.findViewById<ImageButton>(R.id.buttonExit)
         val imageHeader = view.findViewById<ImageView>(R.id.imageDetail)
         val titleHeader = view.findViewById<TextView>(R.id.title)
@@ -83,11 +103,6 @@ class DetailFragment : Fragment() {
             }
         }
 
-        button.setOnClickListener {
-            isLiked = !isLiked
-            button.setImageResource(if (isLiked) R.drawable.full_like else R.drawable.empty_like)
-        }
-
         Glide.with(view.context)
             .load(competition.emblem)
             .error(R.drawable.imagenotfound)
@@ -126,6 +141,5 @@ class DetailFragment : Fragment() {
                 )
             }
         }
-
     }
 }
\ No newline at end of file
diff --git a/src/app/src/main/java/uca/iut/clermont/view/FavoriteFragment.kt b/src/app/src/main/java/uca/iut/clermont/view/FavoriteFragment.kt
index 3627133..3c776b8 100644
--- a/src/app/src/main/java/uca/iut/clermont/view/FavoriteFragment.kt
+++ b/src/app/src/main/java/uca/iut/clermont/view/FavoriteFragment.kt
@@ -14,13 +14,20 @@ import androidx.navigation.fragment.findNavController
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import uca.iut.clermont.R
+import uca.iut.clermont.application.ScorItApplication
 import uca.iut.clermont.model.Competition
+import uca.iut.clermont.model.Match
 import uca.iut.clermont.view.adapter.CompetitionsAdapter
 import uca.iut.clermont.view.viewModel.FavoriteViewModel
+import uca.iut.clermont.view.viewModel.ViewModelFactory
 
 class FavoriteFragment : Fragment(), CompetitionsAdapter.OnItemClickListener {
 
-    private val viewModel: FavoriteViewModel by viewModels()
+    private var favorites: List<Competition> = mutableListOf()
+
+    private val viewModel: FavoriteViewModel by viewModels {
+        ViewModelFactory((requireActivity().application as ScorItApplication).db.competitionDao())
+    }
 
     override fun onCreateView(
         inflater: LayoutInflater,
@@ -28,14 +35,14 @@ class FavoriteFragment : Fragment(), CompetitionsAdapter.OnItemClickListener {
         savedInstanceState: Bundle?
     ): View? {
         val view = inflater.inflate(R.layout.fragment_favorite, container, false)
-        viewModel.competitions.observe(viewLifecycleOwner, Observer { competitions ->
+
+        viewModel.getAllCompetitions().observe(viewLifecycleOwner, Observer { competitions ->
             competitions?.let {
+                favorites = competitions
                 initRecyclerView(view, competitions, this)
             }
         })
 
-        viewModel.loadCompetitions()
-
         initializeView(view)
 
         return view
@@ -71,11 +78,11 @@ class FavoriteFragment : Fragment(), CompetitionsAdapter.OnItemClickListener {
     }
 
     override fun onItemClick(position: Int) {
-        val competitions = viewModel.competitions.value!!
         val bundle = bundleOf(
-            "idItem" to competitions[position].id,
+            "idItem" to favorites[position].id,
             "fragmentId" to R.id.favoriteFragment
         )
         findNavController().navigate(R.id.action_favoriteFragment_to_detailFragment, bundle)
     }
+
 }
\ No newline at end of file
diff --git a/src/app/src/main/java/uca/iut/clermont/view/HomeFragment.kt b/src/app/src/main/java/uca/iut/clermont/view/HomeFragment.kt
index e035845..625ba1d 100644
--- a/src/app/src/main/java/uca/iut/clermont/view/HomeFragment.kt
+++ b/src/app/src/main/java/uca/iut/clermont/view/HomeFragment.kt
@@ -49,7 +49,7 @@ class HomeFragment : Fragment(), CompetitionsAdapter.OnItemClickListener {
         viewModel.matches.observe(viewLifecycleOwner, Observer { matches ->
             matches?.let {
                 if (it.isNotEmpty()) {
-                    initRecyclerView(view, it, this)
+                    initRecyclerView(view, it)
                 } else {
                     text.setText(R.string.noMatches)
                 }
@@ -76,6 +76,7 @@ class HomeFragment : Fragment(), CompetitionsAdapter.OnItemClickListener {
     private val textWatcher = object : TextWatcher {
 
         override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
+            // No need for the function
         }
 
         override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
@@ -83,6 +84,7 @@ class HomeFragment : Fragment(), CompetitionsAdapter.OnItemClickListener {
         }
 
         override fun afterTextChanged(s: Editable?) {
+            // No need for the function
         }
     }
 
@@ -98,8 +100,7 @@ class HomeFragment : Fragment(), CompetitionsAdapter.OnItemClickListener {
 
     private fun initRecyclerView(
         view: View,
-        matches: List<Match>,
-        listener: CompetitionsAdapter.OnItemClickListener
+        matches: List<Match>
     ) {
         val recyclerViewMatches = view.findViewById<RecyclerView>(R.id.listRecentsMatches)
         with(recyclerViewMatches) {
diff --git a/src/app/src/main/java/uca/iut/clermont/view/viewModel/DetailViewModel.kt b/src/app/src/main/java/uca/iut/clermont/view/viewModel/DetailViewModel.kt
index 9e9f9e0..f6554e2 100644
--- a/src/app/src/main/java/uca/iut/clermont/view/viewModel/DetailViewModel.kt
+++ b/src/app/src/main/java/uca/iut/clermont/view/viewModel/DetailViewModel.kt
@@ -3,35 +3,46 @@ package uca.iut.clermont.view.viewModel
 import android.util.Log
 import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
+import androidx.lifecycle.asLiveData
 import androidx.lifecycle.viewModelScope
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 import retrofit2.HttpException
 import uca.iut.clermont.api.ApiManager
+import uca.iut.clermont.data.dao.CompetitionDao
 import uca.iut.clermont.model.Competition
 import uca.iut.clermont.model.Match
 import java.util.*
 
 class DetailViewModel(
-    //val dao: CompetitionDao
+    val dao: CompetitionDao
 ) : ViewModel() {
 
+    val ERROR = "too many requests"
     val manager = ApiManager()
     val competition = MutableLiveData<Competition?>()
     val competitionMatches = MutableLiveData<List<Match>>()
     val nbCompetitionMatches = MutableLiveData<Int>()
+    val isFavorite = MutableLiveData<Boolean>()
 
-    /*fun insertCompetition(competition: Competition) =
-        viewModelScope.launch {
+    fun insertCompetition(competition: Competition) =
+        viewModelScope.launch(Dispatchers.IO) {
             dao.insertCompetition(competition)
         }
-    */
+
+    fun deleteCompetition(competition: Competition) =
+        viewModelScope.launch(Dispatchers.IO) {
+            dao.deleteCompetition(competition)
+        }
+
+    fun check(id: Int) = dao.getCompetitionById(id).asLiveData()
 
     fun loadCurrentCompetition(id: Int) = viewModelScope.launch {
         try {
             val result = manager.competitionsMgr.getItemById(id)
             competition.value = result
         } catch (e: HttpException) {
-            Log.d(e.toString(), ": too many requests")
+            Log.d(e.toString(), ERROR)
         }
     }
 
@@ -44,7 +55,7 @@ class DetailViewModel(
                     .sortedBy { it.competition.name }
                     .sortedByDescending { it.date }
         } catch (e: HttpException) {
-            Log.d(e.toString(), ": too many requests")
+            Log.d(e.toString(), ERROR)
         }
     }
 
@@ -52,7 +63,7 @@ class DetailViewModel(
         try {
             nbCompetitionMatches.value = competitionMatches.value?.size
         } catch (e: HttpException) {
-            Log.d(e.toString(), ": too many requests")
+            Log.d(e.toString(), ERROR)
         }
     }
 }
\ No newline at end of file
diff --git a/src/app/src/main/java/uca/iut/clermont/view/viewModel/FavoriteViewModel.kt b/src/app/src/main/java/uca/iut/clermont/view/viewModel/FavoriteViewModel.kt
index f84c449..29a4055 100644
--- a/src/app/src/main/java/uca/iut/clermont/view/viewModel/FavoriteViewModel.kt
+++ b/src/app/src/main/java/uca/iut/clermont/view/viewModel/FavoriteViewModel.kt
@@ -1,25 +1,11 @@
 package uca.iut.clermont.view.viewModel
 
-import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
-import androidx.lifecycle.viewModelScope
-import kotlinx.coroutines.launch
-import uca.iut.clermont.api.ApiManager
-import uca.iut.clermont.model.Competition
+import androidx.lifecycle.asLiveData
+import uca.iut.clermont.data.dao.CompetitionDao
 
 class FavoriteViewModel(
-    //val dao: CompetitionDao
+    val dao: CompetitionDao
 ) : ViewModel() {
-
-    val manager = ApiManager()
-    val competitions = MutableLiveData<List<Competition>>()
-
-    //fun getAllCompetitions() = dao.getAllCompetitions()
-    //.isLiveDate()
-
-    fun loadCompetitions() = viewModelScope.launch {
-        val result = manager.competitionsMgr.getItems()
-        competitions.value = result
-    }
-
+    fun getAllCompetitions() = dao.getAllCompetitions().asLiveData()
 }
\ No newline at end of file
diff --git a/src/app/src/main/java/uca/iut/clermont/view/viewModel/HomeViewModel.kt b/src/app/src/main/java/uca/iut/clermont/view/viewModel/HomeViewModel.kt
index 1e49caf..2acfcf5 100644
--- a/src/app/src/main/java/uca/iut/clermont/view/viewModel/HomeViewModel.kt
+++ b/src/app/src/main/java/uca/iut/clermont/view/viewModel/HomeViewModel.kt
@@ -13,6 +13,7 @@ import java.util.*
 
 class HomeViewModel : ViewModel() {
 
+    val ERROR = "too many requests"
     val manager = ApiManager()
     val matches = MutableLiveData<List<Match>?>()
     val competitions = MutableLiveData<List<Competition>>()
@@ -25,7 +26,7 @@ class HomeViewModel : ViewModel() {
                 .sortedBy { it.competition.name }
                 .sortedByDescending { it.date }
         } catch (e: HttpException) {
-            Log.d(e.toString(),": too many requests")
+            Log.d(e.toString(),ERROR)
         }
     }
 
@@ -34,7 +35,7 @@ class HomeViewModel : ViewModel() {
             val result = manager.competitionsMgr.getItems()
             competitions.value = result
         } catch (e: HttpException) {
-            Log.d(e.toString(),": too many requests")
+            Log.d(e.toString(),ERROR)
         }
     }
 
diff --git a/src/app/src/main/java/uca/iut/clermont/view/viewModel/ViewModelFactory.kt b/src/app/src/main/java/uca/iut/clermont/view/viewModel/ViewModelFactory.kt
new file mode 100644
index 0000000..64aaac0
--- /dev/null
+++ b/src/app/src/main/java/uca/iut/clermont/view/viewModel/ViewModelFactory.kt
@@ -0,0 +1,19 @@
+package uca.iut.clermont.view.viewModel
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.ViewModelProvider
+import uca.iut.clermont.data.dao.CompetitionDao
+
+class ViewModelFactory(private val dao: CompetitionDao): ViewModelProvider.Factory {
+
+    override fun <T : ViewModel> create(modelClass: Class<T>): T {
+        if (modelClass.isAssignableFrom(FavoriteViewModel::class.java)){
+            return FavoriteViewModel(dao) as T
+        }
+        if (modelClass.isAssignableFrom(DetailViewModel::class.java)){
+            return DetailViewModel(dao) as T
+        }
+        throw IllegalArgumentException("Unknown viewModel class")
+    }
+
+}
\ No newline at end of file