Use built-in generation

Author: kitloong

src/Database/Models/DatabaseColumn.php

@@ -79,8 +79,8 @@ public function __construct(string $table, array $column)
         $this->presetValues              = [];
         $this->onUpdateCurrentTimestamp  = false;
         $this->rawDefault                = false;
-        $this->virtualDefinition         = null;
-        $this->storedDefinition          = null;
+        $this->virtualDefinition         = $column['generation'] !== null && $column['generation']['type'] === 'virtual' ? $column['generation']['expression'] : null;
+        $this->storedDefinition          = $column['generation'] !== null && $column['generation']['type'] === 'stored' ? $column['generation']['expression'] : null ;
         $this->spatialSubType            = null;
         $this->spatialSrID               = null;
 

src/Database/Models/MySQL/MySQLColumn.php

@@ -222,31 +222,27 @@ private function isJson(): bool
      */
     private function setVirtualDefinition(): void
     {
-        $virtualDefinition = $this->mysqlRepository->getVirtualDefinition($this->tableName, $this->name);
-
-        if ($virtualDefinition === null) {
+        if ($this->virtualDefinition === null) {
             return;
         }
 
         // The definition of MySQL8 returned `concat(string,_utf8mb4\' \',string_255)`.
         // Replace `\'` to `'` here to avoid double escape.
-        $this->virtualDefinition = str_replace("\'", "'", $virtualDefinition);
+        $this->virtualDefinition = str_replace("\'", "'", $this->virtualDefinition);
     }
 
     /**
      * Set stored definition if the column is stored.
      */
     private function setStoredDefinition(): void
     {
-        $storedDefinition = $this->mysqlRepository->getStoredDefinition($this->tableName, $this->name);
-
-        if ($storedDefinition === null) {
+        if ($this->storedDefinition === null) {
             return;
         }
 
         // The definition of MySQL8 returned `concat(string,_utf8mb4\' \',string_255)`.
         // Replace `\'` to `'` here to avoid double escape.
-        $this->storedDefinition = str_replace("\'", "'", $storedDefinition);
+        $this->storedDefinition = str_replace("\'", "'", $this->storedDefinition);
     }
 
     /**

src/Database/Models/PgSQL/PgSQLColumn.php

@@ -57,8 +57,6 @@ public function __construct(string $table, array $column)
 
             default:
         }
-
-        $this->setStoredDefinition();
     }
 
     /**
@@ -181,19 +179,4 @@ private function getEnumPresetValues(): array
 
         return $presetValues;
     }
-
-    /**
-     * Set stored definition if the column is stored.
-     */
-    private function setStoredDefinition(): void
-    {
-        $this->storedDefinition = $this->repository->getStoredDefinition($this->tableName, $this->name);
-
-        // A generated column cannot have a column default or an identity definition.
-        if ($this->storedDefinition === null) {
-            return;
-        }
-
-        $this->default = null;
-    }
 }