Model: Define missing customvar foreign key in junction models

library/Icingadb/Model/CheckcommandCustomvar.php

@@ -35,6 +35,7 @@ class CheckcommandCustomvar extends Model
             ->setCandidateKey('command_id');
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }

library/Icingadb/Model/EventcommandCustomvar.php

@@ -35,6 +35,7 @@ class EventcommandCustomvar extends Model
             ->setCandidateKey('command_id');
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }

library/Icingadb/Model/HostgroupCustomvar.php

@@ -34,6 +34,7 @@ class HostgroupCustomvar extends Model
         $relations->belongsTo('hostgroup', Hostgroup::class);
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }

library/Icingadb/Model/NotificationCustomvar.php

@@ -34,6 +34,7 @@ class NotificationCustomvar extends Model
         $relations->belongsTo('notification', Notification::class);
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }

library/Icingadb/Model/NotificationcommandCustomvar.php

@@ -35,6 +35,7 @@ class NotificationcommandCustomvar extends Model
             ->setCandidateKey('command_id');
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }

library/Icingadb/Model/ServicegroupCustomvar.php

@@ -34,6 +34,7 @@ class ServicegroupCustomvar extends Model
         $relations->belongsTo('servicegroup', Servicegroup::class);
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }

library/Icingadb/Model/TimeperiodCustomvar.php

@@ -34,6 +34,7 @@ class TimeperiodCustomvar extends Model
         $relations->belongsTo('timeperiod', Timeperiod::class);
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }

library/Icingadb/Model/UserCustomvar.php

@@ -34,6 +34,7 @@ class UserCustomvar extends Model
         $relations->belongsTo('user', User::class);
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }

library/Icingadb/Model/UsergroupCustomvar.php

@@ -34,6 +34,7 @@ class UsergroupCustomvar extends Model
         $relations->belongsTo('usergroup', Usergroup::class);
         $relations->belongsTo('customvar', Customvar::class);
         $relations->belongsTo('customvar_flat', CustomvarFlat::class)
-            ->setCandidateKey('customvar_id');
+            ->setCandidateKey('customvar_id')
+            ->setForeignKey('customvar_id');
     }
 }