Add column comment support to postgres.

Author: markstory

lib/Cake/Database/Schema/PostgresSchema.php

@@ -313,11 +313,22 @@ public function constraintSql(Table $table, $name) {
 	public function createTableSql($table, $columns, $constraints, $indexes) {
 		$content = array_merge($columns, $constraints);
 		$content = implode(",\n", array_filter($content));
+		$tableName = $this->_driver->quoteIdentifier($table->name());
 		$out = [];
-		$out[] = sprintf("CREATE TABLE \"%s\" (\n%s\n)", $table, $content);
+		$out[] = sprintf("CREATE TABLE %s (\n%s\n)", $tableName, $content);
 		foreach ($indexes as $index) {
 			$out[] = $index;
 		}
+		foreach ($table->columns() as $column) {
+			$columnData = $table->column($column);
+			if (isset($columnData['comment'])) {
+				$out[] = sprintf('COMMENT ON COLUMN %s.%s IS %s',
+					$tableName,
+					$this->_driver->quoteIdentifier($column),
+					$this->_driver->schemaValue($columnData['comment'])
+				);
+			}
+		}
 		return $out;
 	}
 

lib/Cake/Test/TestCase/Database/Schema/PostgresSchemaTest.php

@@ -509,6 +509,7 @@ public function testCreateTableSql() {
 			->addColumn('title', [
 				'type' => 'string',
 				'null' => false,
+				'comment' => 'This is the title',
 			])
 			->addColumn('body', ['type' => 'text'])
 			->addColumn('created', 'datetime')
@@ -532,12 +533,16 @@ public function testCreateTableSql() {
 SQL;
 		$result = $table->createTableSql($connection);
 
-		$this->assertCount(2, $result);
+		$this->assertCount(3, $result);
 		$this->assertEquals($expected, $result[0]);
 		$this->assertEquals(
-			'CREATE INDEX "title_idx" ON "atricles" ("title")',
+			'CREATE INDEX "title_idx" ON "articles" ("title")',
 			$result[1]
 		);
+		$this->assertEquals(
+			'COMMENT ON COLUMN "articles"."title" IS "This is the title"',
+			$result[2]
+		);
 	}
 
 /**