Fix broken migration rollbacks

Author: DaneEveritt

database/migrations/2017_04_15_125021_UpgradeTaskSystem.php

@@ -36,8 +36,8 @@ public function up()
     public function down()
     {
         Schema::table('tasks', function (Blueprint $table) {
-            $table->dropForeign(['server_id']);
-            $table->dropForeign(['user_id']);
+//            $table->dropForeign(['server_id']);
+//            $table->dropForeign(['user_id']);
 
             $table->renameColumn('server_id', 'server');
             $table->dropColumn('user_id');

database/migrations/2017_07_24_194433_DeleteTaskWhenParentServerIsDeleted.php

@@ -23,10 +23,6 @@ public function up()
      */
     public function down()
     {
-        Schema::table('tasks', function (Blueprint $table) {
-            $table->dropForeign(['server_id']);
-
-            $table->foreign('server_id')->references('id')->on('servers');
-        });
+        //
     }
 }

database/migrations/2018_01_11_213943_AddApiKeyPermissionColumns.php

@@ -41,7 +41,7 @@ public function down()
             $table->unsignedInteger('key_id');
             $table->string('permission');
 
-            $table->foreign('key_id')->references('id')->on('keys')->onDelete('cascade');
+            $table->foreign('key_id')->references('id')->on('api_keys')->onDelete('cascade');
         });
 
         Schema::table('api_keys', function (Blueprint $table) {

database/migrations/2018_02_17_134254_ensure_unique_allocation_id_on_servers_table.php

@@ -26,7 +26,10 @@ public function up()
     public function down()
     {
         Schema::table('servers', function (Blueprint $table) {
+            $table->dropForeign(['allocation_id']);
             $table->dropUnique(['allocation_id']);
+
+            $table->foreign('allocation_id')->references('id')->on('allocations');
         });
     }
 }