Adds filters and search for admin

tournaments/admin.py

@@ -31,6 +31,7 @@ class CustomUserAdmin(UserAdmin):
 
 class TeamRegistrationAdmin(admin.ModelAdmin):
     list_display = ['player_names', 'group_stage_position', 'name', 'tournament']
+    list_filter = ['tournament']
 
 class TournamentAdmin(admin.ModelAdmin):
     list_display = ['display_name', 'event', 'is_private', 'start_date', 'payment', 'is_canceled']
@@ -40,21 +41,26 @@ class TeamScoreAdmin(admin.ModelAdmin):
 
 class RoundAdmin(admin.ModelAdmin):
     list_display = ['tournament', 'name', 'index', 'parent']
+    list_filter = ['tournament']
 
 class PlayerRegistrationAdmin(admin.ModelAdmin):
     list_display = ['first_name', 'last_name', 'licence_id', 'rank']
+    search_fields = ('first_name', 'last_name')
 
 class MatchAdmin(admin.ModelAdmin):
     list_display = ['__str__', 'round', 'group_stage', 'start_date', 'index']
 
 class GroupStageAdmin(admin.ModelAdmin):
     list_display = ['tournament', 'index', 'start_date']
+    list_filter = ['tournament']
 
 class EventAdmin(admin.ModelAdmin):
     list_display = ['creation_date', 'name', 'club', 'creator']
+    # search_fields = ('name')
 
 class ClubAdmin(admin.ModelAdmin):
     list_display = ['name', 'acronym', 'city', 'creator', 'events_count', 'broadcast_code']
+    search_fields = ('name', 'acronym')
 
 class PurchaseAdmin(admin.ModelAdmin):
     list_display = ['user', 'identifier', 'product_id', 'quantity', 'purchase_date', 'revocation_date']