added closure support to populate select options from database

README.md

@@ -289,6 +289,24 @@ A select box can be defined with options:
 ],
 ```
 
+### Select options from database
+
+You can also populate select options dynamically. In most cases it will be coming from the database, just use a closure for this:
+
+```php
+[
+    'type' => 'select',
+    'name' => 'city',
+    'label' => 'City',
+    'rules' => 'required',
+    'options' => function() {
+        return App\City::pluck('name', 'id')->toArray()
+    }
+],
+```
+
+> Note: You can use a closure (anonymous function) for most of the fields on inputs if you need to resolve field value dynamically.
+
 #### boolean
 
 Boolean is just a radio input group with yes or no option, you can also change it to select by setting `options` array:

src/SavesSettings.php

@@ -14,10 +14,11 @@ trait SavesSettings
      * Display the settings page
      *
      * @return \Illuminate\View\View
+     * @param AppSettings $appSettings
      */
-    public function index()
+    public function index(AppSettings $appSettings)
     {
-        $settingsUI = config('app_settings', []);
+        $settingsUI = $appSettings->loadConfig(config('app_settings', []));
         $settingViewName = config('app_settings.setting_page_view');
 
         return view($settingViewName, compact('settingsUI'));
@@ -43,4 +44,9 @@ public function store(Request $request, AppSettings $appSettings)
                 'status' => config('app_settings.submit_success_message', 'Settings Saved.')
             ]);
     }
+
+    protected function resolveClosers()
+    {
+
+    }
 }

src/Setting/AppSettings.php

@@ -123,6 +123,29 @@ public function save($request)
         $this->cleanUpSettings($allDefinedSettings);
     }
 
+    /**
+     * Load and resolve closers in config
+     *
+     * @param $config
+     * @return array
+     */
+    public function loadConfig($config)
+    {
+        // resolve any callback for inputs
+        array_walk_recursive($config, function (&$value, $key) {
+            if (!in_array($key, ['mutator', 'accessor', 'rules']) && is_callable($value)) {
+                // skip any string which dont look like namesapce
+                if (is_string($value) && str_contains($value, '\\') == false) {
+                    return;
+                }
+
+                $value = $this->runCallback($value, $key, '');
+            }
+        });
+
+        return $config;
+    }
+
     /**
      * Get the settings UI sections as collection
      *
@@ -211,7 +234,7 @@ private function castValue($dataType, $value, $out = false)
      * @param $callback
      * @param $name
      * @param $value
-     * @return string
+     * @return string|mixed
      */
     protected function runCallback($callback, $name, $value)
     {

tests/SettingUITest.php

@@ -2,6 +2,7 @@
 
 namespace QCod\AppSettings\Tests\Feature;
 
+use Illuminate\Support\Facades\DB;
 use QCod\AppSettings\Tests\TestCase;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 
@@ -173,6 +174,31 @@ public function it_shows_select_input_with_options()
             ->assertSee('IN');
     }
 
+    /**
+     * it can populate options from database dynamically
+     *
+     * @test
+     */
+    public function it_can_populate_options_from_database_dynamically()
+    {
+        $this->configureInputs([
+            [
+                'name' => 'app_migrations',
+                'label' => 'App Migration',
+                'type' => 'select',
+                'options' => function () {
+                    return DB::table('migrations')->pluck('migration', 'id')->toArray();
+                }
+            ]
+        ]);
+
+        // assert
+        $this->get('/settings')
+            ->assertStatus(200)
+            ->assertSee('select')
+            ->assertSee('2014_10_00_000000_create_settings_table');
+    }
+
     /**
      * it shows textarea input
      *