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Finish work on condition parsing

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This commit is contained in:
Kijin Sung 2020-06-26 20:56:32 +09:00
parent 6eca8736c1
commit db13d110b8
2 changed files with 154 additions and 51 deletions
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45
common/framework/parsers/dbquery/query.php
View file

@ -5,7 +5,7 @@ namespace Rhymix\Framework\Parsers\DBQuery;
/**
* Query class.
*/
class Query
class Query extends VariableBase
{
public $name;
public $alias;
@ -89,9 +89,9 @@ class Query
if ($column instanceof self)
{
$subquery = $column->getQueryString($this->_prefix, $this->_args);
foreach ($column->getQueryParams() as $key => $val)
foreach ($column->getQueryParams() as $param)
{
$this->_params[$key] = $val;
$this->_params[] = $param;
}
$columns[] = sprintf('(%s) AS %s', $subquery, self::quoteName($column->alias));
}
@ -114,28 +114,31 @@ class Query
if ($table instanceof self)
{
$subquery = $table->getQueryString($this->_prefix, $this->_args);
foreach ($table->getQueryParams() as $key => $val)
foreach ($table->getQueryParams() as $param)
{
$this->_params[$key] = $val;
$this->_params[] = $param;
}
$tables[] = sprintf('(%s) AS `%s`', $subquery, $table->alias);
$tables[] = (count($tables) ? ', ' : '') . sprintf('(%s) AS `%s`', $subquery, $table->alias);
}
else
{
$tabledef = self::quoteName($table->name) . ($table->alias ? (' AS `' . $table->alias . '`') : '');
if ($table->join_type)
{
$tabledef = $table->join_type . ' ' . $tabledef;
$join_where = $this->_arrangeConditions($table->join_conditions);
if ($join_where !== '')
{
$tabledef = $tabledef . ' ON ' . $join_where;
}
$tables[] = ' ' . $table->join_type . ' ' . $tabledef;
}
else
{
$tables[] = (count($tables) ? ', ' : '') . $tabledef;
}
$tables[] = $tabledef;
}
}
$result .= ' FROM ' . implode(', ', $tables);
$result .= ' FROM ' . implode('', $tables);
// Compose the conditions.
if (count($this->conditions))
@ -172,29 +175,31 @@ class Query
// Subquery
if ($condition instanceof self)
{
// TODO
$condition_string = $this->_parseCondition($condition);
if ($condition_string !== '')
{
$result .= ($result === '' ? '' : (' ' . $condition->pipe . ' ')) . $condition_string;
}
}
// Condition group
elseif ($condition instanceof ConditionGroup)
{
$condition_string = $this->_arrangeConditions($condition->conditions);
if ($condition_string === '')
if ($condition_string !== '')
{
continue;
$result .= ($result === '' ? '' : (' ' . $condition->pipe . ' ')) . '(' . $condition_string . ')';
}
$result .= ($result === '' ? '' : (' ' . $condition->pipe . ' ')) . '(' . $condition_string . ')';
}
// Simple condition
else
{
$condition_string = $this->_parseCondition($condition);
if ($condition_string === '')
if ($condition_string !== '')
{
continue;
$result .= ($result === '' ? '' : (' ' . $condition->pipe . ' ')) . $condition_string;
}
$result .= ($result === '' ? '' : (' ' . $condition->pipe . ' ')) . $condition_string;
}
}
@ -208,12 +213,12 @@ class Query
* @param object $condition
* @return string
*/
protected function _parseCondition(Condition $condition): string
protected function _parseCondition(VariableBase $condition): string
{
list($where, $params) = $condition->getQueryStringAndParams($this->_args);
foreach ($params as $key => $val)
list($where, $params) = $condition->getQueryStringAndParams($this->_args, $this->_prefix);
foreach ($params as $param)
{
$this->_params[$key] = $val;
$this->_params[] = $param;
}
return $where;
}

160
common/framework/parsers/dbquery/variablebase.php
View file

@ -17,9 +17,10 @@ class VariableBase
* Convert an operator into real SQL.
*
* @param array $args
* @param string $prefix
* @return array
*/
public function getQueryStringAndParams(array $args): array
public function getQueryStringAndParams(array $args, string $prefix = ''): array
{
// Return if this method is called on an invalid child class.
if (!isset($this->column) || !isset($this->operation))
@ -27,15 +28,26 @@ class VariableBase
throw new \Rhymix\Framework\Exceptions\QueryError('Invalid invocation of getQueryStringAndParams()');
}
// Initialze the return values.
$where = '';
$params = array();
// Process the variable or default value.
if ($this->var && isset($args[$this->var]) && !empty($args[$this->var]))
if ($this->var && isset($args[$this->var]) && (!is_array($args[$this->var]) || count($args[$this->var]) > 1 || $args[$this->var] !== ['']))
{
$this->filterValue($args[$this->var]);
$is_expression = false;
$value = $args[$this->var];
}
elseif ($this->default !== null)
{
$value = $this->getDefaultValue();
list($is_expression, $value) = $this->getDefaultValue();
}
elseif ($this instanceof Query)
{
$is_expression = true;
$value = '(' . $this->getQueryString($prefix, $args) . ') AS ' . Query::quoteName($this->alias);
$params = $this->getQueryParams();
}
elseif ($this->not_null)
{
@ -43,13 +55,11 @@ class VariableBase
}
else
{
return ['', []];
return [$where, $params];
}
// Quote the column name.
$column = Query::quoteName($this->column);
$where = '';
$params = array();
// Prepare the target value.
$list_ops = array('in' => true, 'notin' => true, 'not_in' => true, 'between' => true);
@ -62,36 +72,93 @@ class VariableBase
switch ($this->operation)
{
case 'equal':
$where = sprintf('%s = ?', $column);
$params[] = $value;
$where = sprintf('%s = %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value;
break;
case 'notequal':
case 'not_equal':
$where = sprintf('%s != %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value;
break;
case 'more':
case 'gte':
$where = sprintf('%s >= %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value;
break;
case 'excess':
case 'gt';
$where = sprintf('%s > %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value;
break;
case 'less':
case 'lte':
$where = sprintf('%s <= %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value;
break;
case 'below':
case 'lt';
$where = sprintf('%s < %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value;
break;
case 'regexp';
$where = sprintf('%s REGEXP %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value;
break;
case 'notregexp';
case 'not_regexp';
$where = sprintf('%s NOT REGEXP %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value;
break;
case 'like':
$where = sprintf('%s LIKE ?', $column);
$params[] = '%' . $value . '%';
$where = sprintf('%s LIKE %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = '%' . $value . '%';
break;
case 'like_prefix':
case 'like_head':
$where = sprintf('%s LIKE ?', $column);
$params[] = $value . '%';
$where = sprintf('%s LIKE %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value . '%';
break;
case 'like_suffix':
case 'like_tail':
$where = sprintf('%s LIKE ?', $column);
$params[] = '%' . $value;
$where = sprintf('%s LIKE %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = '%' . $value;
break;
case 'notlike':
$where = sprintf('%s NOT LIKE ?', $column);
$params[] = '%' . $value . '%';
$where = sprintf('%s NOT LIKE %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = '%' . $value . '%';
break;
case 'notlike_prefix':
case 'notlike_head':
$where = sprintf('%s NOT LIKE ?', $column);
$params[] = $value . '%';
$where = sprintf('%s NOT LIKE %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = $value . '%';
break;
case 'notlike_suffix':
case 'notlike_tail':
$where = sprintf('%s NOT LIKE ?', $column);
$params[] = '%' . $value;
$where = sprintf('%s NOT LIKE %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = '%' . $value;
break;
case 'and':
$where = sprintf('%s & %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = '%' . $value;
break;
case 'or':
$where = sprintf('%s | %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = '%' . $value;
break;
case 'xor':
$where = sprintf('%s ^ %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = '%' . $value;
break;
case 'not':
$where = sprintf('%s ~ %s', $column, $is_expression ? $value : '?');
if (!$is_expression) $params[] = '%' . $value;
break;
case 'null':
$where = sprintf('%s IS NULL', $column);
break;
case 'notnull':
case 'not_null':
$where = sprintf('%s IS NOT NULL', $column);
break;
case 'in':
$count = count($value);
@ -119,6 +186,37 @@ class VariableBase
$params[] = $item;
}
break;
case 'notbetween':
case 'not_between':
$where = sprintf('%s NOT BETWEEN ? AND ?', $column);
foreach ($value as $item)
{
$params[] = $item;
}
break;
case 'search':
$keywords = preg_split('/[\s,]+/', $value, 10, \PREG_SPLIT_NO_EMPTY);
$conditions = array();
$placeholders = implode(', ', array_fill(0, count($keywords), '?'));
foreach ($keywords as $item)
{
if (substr($item, 0, 1) === '-')
{
$conditions[] = sprintf('%s NOT LIKE ?', $column);
$item = substr($item, 1);
}
else
{
$conditions[] = sprintf('%s LIKE ?', $column);
}
$params[] = '%' . str_replace(['\\', '_', '%'], ['\\\\', '\_', '\%'], $item) . '%';
}
$conditions = implode(' AND ', $conditions);
$where = count($keywords) === 1 ? $conditions : "($conditions)";
break;
default:
$where = sprintf('%s = ?', $column);
$params[] = $value;
}
// Return the complete condition and parameters.
@ -128,32 +226,32 @@ class VariableBase
/**
* Get the default value of this variable.
*
* @return mixed
* @return array
*/
public function getDefaultValue()
{
// If the default value is a column name, escape it.
if (preg_match('/^[a-z0-9_]+(?:\.[a-z0-9_]+)+$/', $this->default))
{
return Query::quoteName($this->default);
return [true, Query::quoteName($this->default)];
}
elseif (isset($this->column) && preg_match('/_srl$/', $this->column) && !ctype_digit($this->default))
{
return Query::quoteName($this->default);
return [true, Query::quoteName($this->default)];
}
// If the default value is a function shortcut, return an appropriate value.
switch ($this->default)
{
case 'ipaddress()':
return "'" . \RX_CLIENT_IP . "'";
return [false, \RX_CLIENT_IP];
case 'unixtime()':
return time();
return [false, time()];
case 'curdate()':
case 'date()':
return "'" . date('YmdHis') . "'";
return [false, date('YmdHis')];
case 'sequence()':
return getNextSequence();
return [false, getNextSequence()];
}
// If the default value is a calculation based on the current value, return a query string.
@ -162,16 +260,16 @@ class VariableBase
switch ($matches[1])
{
case 'plus':
return sprintf('%s + %d', Query::quoteName($this->column), $matches[2]);
return [true, sprintf('%s + %d', Query::quoteName($this->column), $matches[2])];
case 'minus':
return sprintf('%s - %d', Query::quoteName($this->column), $matches[2]);
return [true, sprintf('%s - %d', Query::quoteName($this->column), $matches[2])];
case 'multiply':
return sprintf('%s * %d', Query::quoteName($this->column), $matches[2]);
return [true, sprintf('%s * %d', Query::quoteName($this->column), $matches[2])];
}
}
// Otherwise, just return the literal value.
return $this->default;
return [false, $this->default];
}
/**