added services, added documentation

common/services/TemplateService.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace common\services;
+
+use common\models\Template;
+
+class TemplateService
+{
+    public static function getTemplateList($document_type = null): array
+    {
+        if (!empty($document_type)) {
+            return Template::find()->where(['document_type' => $document_type])->asArray()->all();
+        }
+        else {
+            return Template::find()->asArray()->all();
+        }
+    }
+
+    public static function getTemplateWithFields($template_id): array
+    {
+        return Template::find()
+//            ->select('title')
+            ->joinWith('templateDocumentFields.field')
+//            ->with([
+//                'fields' => function ($query) { $query->select(['id', 'title', 'field_template']); }
+//            ])
+            ->where(['template.id' => $template_id])
+            ->asArray()
+            ->one();
+    }
+
+    public static function getTemplate($template_id): array
+    {
+        return Template::find()->where(['template.id' => $template_id])
+            ->asArray()
+            ->one();
+    }
+}