docs updated

src/docs/rest_api/Insert_relational_data.md

@@ -0,0 +1,72 @@
+### INSERT RELATIONAL DATA
+
+setup relational parent table  
+
+```
+//App\Models\objectT.php - set relation after inserted
+protected $dispatchesEvents = [
+    'inserted' => ObjectAfterInsert::class,
+];
+
+//App\Models\Event\ObjectAfterInsert.php - call relation
+
+declare(strict_types=1);
+
+namespace App\Models\Events;
+
+use App\Models\objectT;
+
+class ObjectAfterInsert extends objectT
+{
+    public function __construct($bindings, $tableData)
+    {
+        new TableRelation($this->getTable(), $this->getKeyName(), $bindings, $tableData);
+    }
+}
+
+```
+
+setup relational child table
+
+```
+//App\Models\address.php - set relation before insert
+ protected $dispatchesEvents = [
+    'inserting' => AddressBeforeInsert::class,
+];
+
+//App\Models\Events\AddressBeforeInsert.php - get relation id
+declare(strict_types=1);
+
+namespace App\Models\Events;
+
+class AddressBeforeInsert
+{
+    public function __construct(&$bindings)
+    {
+        if (isset($bindings['table_relation_unique_id'])) {
+
+            $relation = TableRelation::fetch($bindings['table_relation_unique_id']);
+            if( !empty($relation) ) {
+                
+                //die(pre($relation));
+                $bindings['image_table'] = $relation->table_relation_table_name;
+                $bindings['image_table_id'] = $relation->table_relation_table_id;
+            }
+        }
+    }
+}
+
+```
+
+use it on react native app
+
+```
+let object_unique_id = object.insert({
+    'object_name': 'this is object name',
+});
+
+address.insert({
+    'table_relation_unique_id': object_unique_id,//by that unique id two tables are merged in laravel
+    'address_name': 'this is address name',
+});
+```

src/docs/rest_api/README.md

@@ -77,3 +77,8 @@ react-native request will be - https://your_domain.com/fetch/{database_name_wher
 
 debug query - when u send request to laravel api with header "debug=true" then it shows mysql query not data 
 
+
+
+### SEE MORE DOCS  
+
+[Insert relational data](/Insert_relational_data.md)

src/docs/rest_api/laravel/app/Models/Events/AddressBeforeInsert.php

@@ -11,9 +11,12 @@ public function __construct(&$bindings)
         if (isset($bindings['table_relation_unique_id'])) {
 
             $relation = TableRelation::fetch($bindings['table_relation_unique_id']);
-            //die(pre($relation));
-            $bindings['image_table'] = $relation->table_relation_table_name;
-            $bindings['image_table_id'] = $relation->table_relation_table_id;
+            if( !empty($relation) ) {
+
+                //die(pre($relation));
+                $bindings['image_table'] = $relation->table_relation_table_name;
+                $bindings['image_table_id'] = $relation->table_relation_table_id;
+            }
         }
     }
 }