Resolve: Description of a property in spec must correspond to DB TABLE COLUMN COMMENT #60

README.md

@@ -465,6 +465,60 @@ Generated URL rules config for above is (in `urls.rest.php` or pertinent file):
 ```
 `x-route` does not support [Yii Modules](https://www.yiiframework.com/doc/guide/2.0/en/structure-modules).
 
+### `x-description-is-comment`
+
+    boolean; default: false
+
+When a new database table is created from new OpenAPI component schema, description of a property will be used as
+comment of column (of database table).
+
+This extension is used when a description is edited for existing property, and you want to generate migration for its
+corresponding column comment changes.
+
+This extension can be used at 3 place:
+
+**1. root level (highest priority)**
+
+```yaml
+openapi: 3.0.3
+x-description-is-comment: true
+info:
+  title: Description
+```
+
+This will create migration of any changed description of component schema property present throughout the spec.
+
+**2. component schema level**
+
+```yaml
+components:
+  schemas:
+    Fruit:
+      type: object
+      x-description-is-comment: true
+```
+
+This will create migration of changed description of only properties of component schema which have this extension.
+
+**3. property level (lowest priority)**
+
+```yaml
+components:
+  schemas:
+    Fruit:
+      type: object
+      properties:
+        id:
+          type: integer
+        name:
+          type: string
+          nullable: false
+          x-description-is-comment: true
+          description: Hi there
+```
+
+Migrations will be only generated for changed description of properties having this extension.
+
 ## Many-to-Many relation definition
 
 There are two ways for define many-to-many relations:

src/lib/AttributeResolver.php

@@ -117,6 +117,7 @@ public function resolve(): DbModel
                 //For valid primary keys for junction tables
                 'junctionCols' => $this->isJunctionSchema ? $this->junctions->junctionCols($this->schemaName) : [],
                 'isNotDb' => $this->componentSchema->isNonDb(),
+                'descriptionIsComment' => !empty(($this->componentSchema->getSchema()->{CustomSpecAttr::DESC_IS_COMMENT}))
             ],
         ]);
     }
@@ -225,6 +226,7 @@ protected function resolveProperty(
                   ->setDefault($property->guessDefault())
                   ->setXDbType($property->getAttr(CustomSpecAttr::DB_TYPE))
                   ->setXDbDefaultExpression($property->getAttr(CustomSpecAttr::DB_DEFAULT_EXPRESSION))
+                  ->setXDescriptionIsComment($property->getAttr(CustomSpecAttr::DESC_IS_COMMENT))
                   ->setNullable($nullableValue)
                   ->setIsPrimary($property->isPrimaryKey())
                   ->setForeignKeyColumnName($property->fkColName)

src/lib/ColumnToCode.php

@@ -84,9 +84,9 @@ class ColumnToCode
      */
     private $isPk = false;
 
-    private $rawParts = ['type' => null, 'nullable' => null, 'default' => null, 'position' => null];
+    private $rawParts = ['type' => null, 'nullable' => null, 'default' => null, 'position' => null, 'comment' => null];
 
-    private $fluentParts = ['type' => null, 'nullable' => null, 'default' => null, 'position' => null];
+    private $fluentParts = ['type' => null, 'nullable' => null, 'default' => null, 'position' => null, 'comment' => null];
 
     /**
      * @var bool
@@ -150,6 +150,60 @@ public function __construct(
         $this->resolve();
     }
 
+    private function resolve():void
+    {
+        $dbType = $this->typeWithoutSize(strtolower($this->column->dbType));
+        $type = $this->column->type;
+        $this->resolvePosition();
+        //Primary Keys
+        if (array_key_exists($type, self::PK_TYPE_MAP)) {
+            $this->rawParts['type'] = $type;
+            $this->fluentParts['type'] = self::PK_TYPE_MAP[$type];
+            $this->isPk = true;
+            return;
+        }
+        if (array_key_exists($dbType, self::PK_TYPE_MAP)) {
+            $this->rawParts['type'] = $dbType;
+            $this->fluentParts['type'] = self::PK_TYPE_MAP[$dbType];
+            $this->isPk = true;
+            return;
+        }
+
+        if ($dbType === 'varchar') {
+            $type = $dbType = 'string';
+        }
+        $fluentSize = $this->column->size ? '(' . $this->column->size . ')' : '()';
+        $rawSize = $this->column->size ? '(' . $this->column->size . ')' : '';
+        $this->rawParts['nullable'] = $this->column->allowNull ? 'NULL' : 'NOT NULL';
+        $this->fluentParts['nullable'] = $this->column->allowNull === true ? 'null()' : 'notNull()';
+
+        $this->fluentParts['comment'] = $this->column->comment ? 'comment('.var_export($this->column->comment, true).')' : $this->fluentParts['comment'];
+        $this->rawParts['comment'] = $this->column->comment ? 'COMMENT '.var_export($this->column->comment, true) : $this->rawParts['comment'];
+
+        if (array_key_exists($dbType, self::INT_TYPE_MAP)) {
+            $this->fluentParts['type'] = self::INT_TYPE_MAP[$dbType] . $fluentSize;
+            $this->rawParts['type'] =
+                $this->column->dbType . (strpos($this->column->dbType, '(') !== false ? '' : $rawSize);
+        } elseif (array_key_exists($type, self::INT_TYPE_MAP)) {
+            $this->fluentParts['type'] = self::INT_TYPE_MAP[$type] . $fluentSize;
+            $this->rawParts['type'] =
+                $this->column->dbType . (strpos($this->column->dbType, '(') !== false ? '' : $rawSize);
+        } elseif ($this->isEnum()) {
+            $this->resolveEnumType();
+        } elseif ($this->isDecimal()) {
+            $this->fluentParts['type'] = $this->column->dbType;
+            $this->rawParts['type'] = $this->column->dbType;
+        } else {
+            $this->fluentParts['type'] = $type . $fluentSize;
+            $this->rawParts['type'] =
+                $this->column->dbType . (strpos($this->column->dbType, '(') !== false ? '' : $rawSize);
+        }
+
+        $this->isBuiltinType = $this->raw ? false : $this->getIsBuiltinType($type, $dbType);
+
+        $this->resolveDefaultValue();
+    }
+
     public function getCode(bool $quoted = false):string
     {
         if ($this->isPk) {
@@ -160,7 +214,8 @@ public function getCode(bool $quoted = false):string
                 $this->fluentParts['type'],
                 $this->fluentParts['nullable'],
                 $this->fluentParts['default'],
-                $this->fluentParts['position']
+                $this->fluentParts['position'],
+                $this->fluentParts['comment'],
             ]);
             array_unshift($parts, '$this');
             return implode('->', array_filter(array_map('trim', $parts)));
@@ -175,9 +230,12 @@ public function getCode(bool $quoted = false):string
         }
 
         $code = $this->rawParts['type'] . ' ' . $this->rawParts['nullable'] . $default;
-        if ((ApiGenerator::isMysql() || ApiGenerator::isMariaDb()) && $this->rawParts['position']) {
-            $code .= ' ' . $this->rawParts['position'];
+
+        if ((ApiGenerator::isMysql() || ApiGenerator::isMariaDb())) {
+            $code .= $this->rawParts['position'] ? ' ' . $this->rawParts['position'] : '';
+            $code .= $this->rawParts['comment'] ? ' '.$this->rawParts['comment'] : '';
         }
+
         if (ApiGenerator::isPostgres() && $this->alterByXDbType) {
             return $quoted ? VarDumper::export($this->rawParts['type']) : $this->rawParts['type'];
         }
@@ -320,56 +378,6 @@ private function defaultValueArray(array $value):string
         return "'{" . trim(Json::encode($value, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_HEX_QUOT), '[]') . "}'";
     }
 
-    private function resolve():void
-    {
-        $dbType = $this->typeWithoutSize(strtolower($this->column->dbType));
-        $type = $this->column->type;
-        $this->resolvePosition();
-        //Primary Keys
-        if (array_key_exists($type, self::PK_TYPE_MAP)) {
-            $this->rawParts['type'] = $type;
-            $this->fluentParts['type'] = self::PK_TYPE_MAP[$type];
-            $this->isPk = true;
-            return;
-        }
-        if (array_key_exists($dbType, self::PK_TYPE_MAP)) {
-            $this->rawParts['type'] = $dbType;
-            $this->fluentParts['type'] = self::PK_TYPE_MAP[$dbType];
-            $this->isPk = true;
-            return;
-        }
-
-        if ($dbType === 'varchar') {
-            $type = $dbType = 'string';
-        }
-        $fluentSize = $this->column->size ? '(' . $this->column->size . ')' : '()';
-        $rawSize = $this->column->size ? '(' . $this->column->size . ')' : '';
-        $this->rawParts['nullable'] = $this->column->allowNull ? 'NULL' : 'NOT NULL';
-        $this->fluentParts['nullable'] = $this->column->allowNull === true ? 'null()' : 'notNull()';
-        if (array_key_exists($dbType, self::INT_TYPE_MAP)) {
-            $this->fluentParts['type'] = self::INT_TYPE_MAP[$dbType] . $fluentSize;
-            $this->rawParts['type'] =
-                $this->column->dbType . (strpos($this->column->dbType, '(') !== false ? '' : $rawSize);
-        } elseif (array_key_exists($type, self::INT_TYPE_MAP)) {
-            $this->fluentParts['type'] = self::INT_TYPE_MAP[$type] . $fluentSize;
-            $this->rawParts['type'] =
-                $this->column->dbType . (strpos($this->column->dbType, '(') !== false ? '' : $rawSize);
-        } elseif ($this->isEnum()) {
-            $this->resolveEnumType();
-        } elseif ($this->isDecimal()) {
-            $this->fluentParts['type'] = $this->column->dbType;
-            $this->rawParts['type'] = $this->column->dbType;
-        } else {
-            $this->fluentParts['type'] = $type . $fluentSize;
-            $this->rawParts['type'] =
-                $this->column->dbType . (strpos($this->column->dbType, '(') !== false ? '' : $rawSize);
-        }
-
-        $this->isBuiltinType = $this->raw ? false : $this->getIsBuiltinType($type, $dbType);
-
-        $this->resolveDefaultValue();
-    }
-
     /**
      * @param $type
      * @param $dbType

src/lib/CustomSpecAttr.php

@@ -56,4 +56,10 @@ class CustomSpecAttr
      * Custom route (controller ID/action ID) instead of auto-generated. See README for usage docs. https://github.com/cebe/yii2-openapi/issues/144
      */
     public const ROUTE = 'x-route';
+
+
+    /**
+     * Generate migrations for changed description of property. More docs is present in README.md file
+     */
+    public const DESC_IS_COMMENT = 'x-description-is-comment';
 }

src/lib/generators/MigrationsGenerator.php

@@ -12,7 +12,6 @@
 use cebe\yii2openapi\lib\items\DbModel;
 use cebe\yii2openapi\lib\items\MigrationModel;
 use cebe\yii2openapi\lib\migrations\BaseMigrationBuilder;
-use cebe\yii2openapi\lib\migrations\MigrationRecordBuilder;
 use cebe\yii2openapi\lib\migrations\MysqlMigrationBuilder;
 use cebe\yii2openapi\lib\migrations\PostgresMigrationBuilder;
 use Exception;
@@ -139,10 +138,11 @@ public function buildMigrations():array
      */
     protected function createBuilder(DbModel $model):BaseMigrationBuilder
     {
+        $params = [$this->db, $model, $this->config];
         if ($this->db->getDriverName() === 'pgsql') {
-            return Yii::createObject(PostgresMigrationBuilder::class, [$this->db, $model]);
+            return Yii::createObject(PostgresMigrationBuilder::class, $params);
         }
-        return Yii::createObject(MysqlMigrationBuilder::class, [$this->db, $model]);
+        return Yii::createObject(MysqlMigrationBuilder::class, $params);
     }
 
     /**

src/lib/items/Attribute.php

@@ -61,13 +61,6 @@ class Attribute extends BaseObject
      */
     public $dbType = 'string';
 
-    /**
-     * Custom db type
-     * string | null | false
-     * if `false` then this attribute is virtual
-     */
-    public $xDbType;
-
     /**
      * nullable
      * bool | null
@@ -128,6 +121,18 @@ class Attribute extends BaseObject
      **/
     public $isVirtual = false;
 
+    /**
+     * Custom db type
+     * string | null | false
+     * if `false` then this attribute is virtual
+     */
+    public $xDbType;
+
+    /**
+     * @see \cebe\yii2openapi\lib\CustomSpecAttr::DESC_IS_COMMENT
+     */
+    public ?bool $xDescriptionIsComment = false;
+
     public function __construct(string $propertyName, array $config = [])
     {
         $this->propertyName = $propertyName;
@@ -322,6 +327,7 @@ public function toColumnSchema(): ColumnSchema
             'allowNull' => $this->allowNull(),
             'size' => $this->size > 0 ? $this->size : null,
             'xDbType' => $this->xDbType,
+            'comment' => $this->description,
         ]);
         $column->isPrimaryKey = $this->primary;
         $column->autoIncrement = $this->primary && $this->phpType === 'int';
@@ -396,4 +402,10 @@ public function handleDecimal(ColumnSchema $columnSchema): void
             $columnSchema->dbType = $decimalAttributes['dbType'];
         }
     }
+
+    public function setXDescriptionIsComment($xDescriptionIsComment): Attribute
+    {
+        $this->xDescriptionIsComment = $xDescriptionIsComment;
+        return $this;
+    }
 }

src/lib/items/DbModel.php

@@ -88,6 +88,8 @@ class DbModel extends BaseObject
      */
     public $scenarioDefaultDescription = "Scenario {scenarioName}";
 
+    public bool $descriptionIsComment = false;
+
     /**
      * @var array Automatically generated scenarios from the model 'x-scenarios'.
      */