Implement

Author: SOHELAHMED7

src/generator/default/dbmodel.php

@@ -144,4 +144,14 @@ public function get<?= $relation->getCamelName() ?>()
 <?php endif;?>
     }
 <?php endforeach; ?>
+<?php $i = 1;
+foreach ($model->belongsToRelations as $relationName => $relation): ?>
+
+    # belongs to relation
+    public function get<?= $relation->getCamelName() . ($i === 1 ? '' : $i) ?>()
+    {
+        return $this-><?= $relation->getMethod() ?>(\<?= trim($relationNamespace, '\\') ?>\<?= $relation->getClassName() ?>::class, <?php
+    echo $relation->linkToString() ?>);
+    }
+<?php $i++; endforeach; ?>
 }

src/lib/AttributeResolver.php

@@ -37,6 +37,11 @@ class AttributeResolver
      */
     public array $relations = [];
 
+    /**
+     * @var AttributeRelation[]|array
+     */
+    public array $belongsToRelations = [];
+
     /**
      * @var NonDbRelation[]|array
      */
@@ -273,6 +278,13 @@ protected function resolveProperty(
             $relation->onDeleteFkConstraint = $property->onDeleteFkConstraint;
             if ($property->isRefPointerToSelf()) {
                 $relation->asSelfReference();
+            } else { # belongs to relations https://github.com/php-openapi/yii2-openapi/issues/90
+                $belongsToRelation = Yii::createObject(
+                    AttributeRelation::class,
+                    [$this->schemaName, $this->tableName, $this->schemaName]
+                )
+                    ->asHasOne([$attribute->columnName => $fkProperty->getName()]);
+                $this->belongsToRelations[$property->getRefClassName()][] = $belongsToRelation;
             }
             $this->relations[$property->getName()] = $relation;
         }

src/lib/SchemaToDatabase.php

@@ -110,6 +110,16 @@ public function prepareModels(): array
             $models[$schemaName] = $resolvers[$schemaName]->resolve();
         }
 
+        // handle belongs to relation
+        foreach ($resolvers as $aResolver) {
+            foreach ($aResolver->belongsToRelations as $name => $relations) {
+                foreach ($relations as $relation) {
+                    /** @var AttributeRelation $relation */
+                    $models[$name]->belongsToRelations[] = $relation;
+                }
+            }
+        }
+
         foreach ($models as $model) {
             foreach ($model->many2many as $relation) {
                 if (isset($models[$relation->viaModelName])) {

src/lib/items/DbModel.php

@@ -86,9 +86,9 @@ class DbModel extends BaseObject
     public bool $descriptionIsComment = false;
 
     /**
-     * @var array Automatically generated scenarios from the model 'x-scenarios'.
+     * @var array|AttributeRelation[] belongs to relations
      */
-    private $_scenarios;
+    public array $belongsToRelations = [];
 
     /**
      * @var bool
@@ -98,6 +98,11 @@ class DbModel extends BaseObject
      */
     public $drop = false;
 
+    /**
+     * @var array Automatically generated scenarios from the model 'x-scenarios'.
+     */
+    private $_scenarios;
+
     public function getTableAlias(): string
     {
         return '{{%' . $this->tableName . '}}';