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Implement DELETE queries using new parser

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This commit is contained in:
Kijin Sung 2020-06-27 00:32:23 +09:00
parent a086c93935
commit 03279788da
1 changed files with 118 additions and 47 deletions
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165
common/framework/parsers/dbquery/query.php
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@ -184,54 +184,13 @@ class Query extends VariableBase
// Compose the ORDER BY clause.
if ($this->navigation && count($this->navigation->orderby) && !$count_only)
{
$orderby_list = array();
foreach ($this->navigation->orderby as $orderby)
{
$column_name = '';
list($is_expression, $column_name) = $orderby->getValue($this->_args);
if (!$column_name)
{
continue;
}
if (!$is_expression && self::isValidColumnName($column_name))
{
$column_name = self::quoteName($column_name);
}
if (isset($this->_args[$orderby->order_var]))
{
$column_order = preg_replace('/[^A-Z]/', '', strtoupper($this->_args[$orderby->order_var]));
}
else
{
$column_order = preg_replace('/[^A-Z]/', '', strtoupper($orderby->order_default));
}
$orderby_list[] = $column_name . ' ' . $column_order;
}
$result .= ' ORDER BY ' . implode(', ', $orderby_list);
$result .= ' ORDER BY ' . $this->_arrangeOrderBy($this->navigation);
}
// Compose the LIMIT clause.
// Compose the LIMIT/OFFSET clause.
if ($this->navigation && $this->navigation->list_count && !$count_only)
{
list($is_expression, $list_count) = $this->navigation->list_count->getValue($this->_args);
if ($list_count > 0)
{
if ($this->navigation->page)
{
list($is_expression, $page) = $this->navigation->page->getValue($this->_args);
}
if ($this->navigation->offset)
{
list($is_expression, $offset) = $this->navigation->offset->getValue($this->_args);
}
if ($page > 0)
{
$offset = $list_count * ($page - 1);
}
$result .= ' LIMIT ' . ($offset > 0 ? (intval($offset) . ', ') : '') . intval($list_count);
}
$result .= ' LIMIT ' . $this->_arrangeLimitOffset($this->navigation);
}
// Return the final query string.
@ -265,7 +224,43 @@ class Query extends VariableBase
*/
protected function _getDeleteQueryString(): string
{
return '';
// Initialize the query string.
$result = 'DELETE';
// Compose the FROM clause.
if (count($this->tables))
{
$tables = $this->_arrangeTables($this->tables);
if ($tables !== '')
{
$result .= ' FROM ' . $tables;
}
}
// Compose the WHERE clause.
if (count($this->conditions))
{
$where = $this->_arrangeConditions($this->conditions);
if ($where !== '')
{
$result .= ' WHERE ' . $where;
}
}
// Compose the ORDER BY clause.
if ($this->navigation && count($this->navigation->orderby))
{
$result .= ' ORDER BY ' . $this->_arrangeOrderBy($this->navigation);
}
// Compose the LIMIT/OFFSET clause.
if ($this->navigation && $this->navigation->list_count)
{
$result .= ' LIMIT ' . $this->_arrangeLimitOffset($this->navigation);
}
// Return the final query string.
return $result;
}
/**
@ -292,10 +287,10 @@ class Query extends VariableBase
}
}
// Simple table
// Regular table
else
{
$tabledef = self::quoteName($table->name) . ($table->alias ? (' AS `' . $table->alias . '`') : '');
$tabledef = self::quoteName($this->_prefix . $table->name) . ($table->alias ? (' AS `' . $table->alias . '`') : '');
}
// Add join conditions
@ -367,6 +362,82 @@ class Query extends VariableBase
return $result;
}
/**
* Generate a ORDER BY clause from navigation settings.
*
* @param object $navigation
* @return string
*/
protected function _arrangeOrderBy(Navigation $navigation): string
{
// Initialize the result.
$result = array();
// Process each column definition.
foreach ($navigation->orderby as $orderby)
{
// Get the name of the column or expression to order by.
$column_name = '';
list($is_expression, $column_name) = $orderby->getValue($this->_args);
if (!$column_name)
{
continue;
}
if (!$is_expression && self::isValidColumnName($column_name))
{
$column_name = self::quoteName($column_name);
}
// Get the ordering (ASC or DESC).
if (isset($this->_args[$orderby->order_var]))
{
$column_order = preg_replace('/[^A-Z]/', '', strtoupper($this->_args[$orderby->order_var]));
}
else
{
$column_order = preg_replace('/[^A-Z]/', '', strtoupper($orderby->order_default));
}
$result[] = $column_name . ' ' . $column_order;
}
// Return the ORDER BY clause.
return implode(', ', $result);
}
/**
* Generate a LIMIT/OFFSET clause from navigation settings.
*
* @param object $navigation
* @return string
*/
protected function _arrangeLimitOffset(Navigation $navigation): string
{
// Get the list count.
list($is_expression, $list_count) = $navigation->list_count->getValue($this->_args);
if ($list_count <= 0)
{
return '';
}
// Get the offset from the page or offset variable.
if ($navigation->page)
{
list($is_expression, $page) = $navigation->page->getValue($this->_args);
}
if ($navigation->offset)
{
list($is_expression, $offset) = $navigation->offset->getValue($this->_args);
}
if ($page > 0)
{
$offset = $list_count * ($page - 1);
}
// Return the LIMIT/OFFSET clause.
return ($offset > 0 ? (intval($offset) . ', ') : '') . intval($list_count);
}
/**
* Generate each condition in a WHERE clause.
*