Add docs

src/Util/Writer/ViewDefinitionSqlWriter.php

@@ -23,8 +23,18 @@ namespace Friendica\Util\Writer;
 
 use Friendica\Database\Definition\ViewDefinition;
 
+/**
+ * SQL writer utility for the db view definition
+ */
 class ViewDefinitionSqlWriter
 {
+	/**
+	 * Creates a complete SQL definition bases on a give View Definition class
+	 *
+	 * @param ViewDefinition $definition The View definition class
+	 *
+	 * @return string The SQL definition as a string
+	 */
 	public static function create(ViewDefinition $definition): string
 	{
 		$sqlString = '';
@@ -40,11 +50,26 @@ class ViewDefinitionSqlWriter
 		return $sqlString;
 	}
 
+	/**
+	 * Creates the SQL definition to drop a view
+	 *
+	 * @param string $viewName the view name
+	 *
+	 * @return string The SQL definition
+	 */
 	public static function dropView(string $viewName): string
 	{
 		return sprintf("DROP VIEW IF EXISTS `%s`", static::escape($viewName)) . ";\n";
 	}
 
+	/**
+	 * Creates the SQL definition to create a new view
+	 *
+	 * @param string $viewName      The view name
+	 * @param array  $viewStructure The structure information of the view
+	 *
+	 * @return string The SQL definition
+	 */
 	public static function createView(string $viewName, array $viewStructure): string
 	{
 		$sql_rows = [];
@@ -59,6 +84,13 @@ class ViewDefinitionSqlWriter
 			   implode(",\n\t", $sql_rows) . "\n\t" . $viewStructure['query'] . ";\n\n";
 	}
 
+	/**
+	 * Standard escaping for SQL definitions
+	 *
+	 * @param string $sqlString the SQL string to escape
+	 *
+	 * @return string escaped SQL string
+	 */
 	public static function escape(string $sqlString): string
 	{
 		return str_replace("'", "\\'", $sqlString);