mootensai\enhancedgii\crud\Generator::generateSearchConditions PHP Method

    public function generateSearchConditions()
    {
        $columns = [];
        if (($table = $this->getTableSchema()) === false) {
            $class = $this->modelClass;
            /* @var $model Model */
            $model = new $class();
            foreach ($model->attributes() as $attribute) {
                $columns[$attribute] = 'unknown';
            }
        } else {
            foreach ($table->columns as $column) {
                $columns[$column->name] = $column->type;
            }
        }
        $likeConditions = [];
        $hashConditions = [];
        foreach ($columns as $column => $type) {
            switch ($type) {
                case Schema::TYPE_SMALLINT:
                case Schema::TYPE_INTEGER:
                case Schema::TYPE_BIGINT:
                case Schema::TYPE_BOOLEAN:
                case Schema::TYPE_FLOAT:
                case Schema::TYPE_DOUBLE:
                case Schema::TYPE_DECIMAL:
                case Schema::TYPE_MONEY:
                case Schema::TYPE_DATE:
                case Schema::TYPE_TIME:
                case Schema::TYPE_DATETIME:
                case Schema::TYPE_TIMESTAMP:
                    $hashConditions[] = "'{$column}' => \$this->{$column},";
                    break;
                default:
                    $likeConditions[] = "->andFilterWhere(['like', '{$column}', \$this->{$column}])";
                    break;
            }
        }
        $conditions = [];
        if (!empty($hashConditions)) {
            $conditions[] = "\$query->andFilterWhere([\n" . str_repeat(' ', 12) . implode("\n" . str_repeat(' ', 12), $hashConditions) . "\n" . str_repeat(' ', 8) . "]);\n";
        }
        if (!empty($likeConditions)) {
            $conditions[] = "\$query" . implode("\n" . str_repeat(' ', 12), $likeConditions) . ";\n";
        }
        return $conditions;
    }