mirror of
https://github.com/Lastorder-DC/rhymix.git
synced 2026-01-08 11:11:39 +09:00
373 lines
11 KiB
PHP
373 lines
11 KiB
PHP
<?php
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namespace Rhymix\Framework\Parsers\DBQuery;
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/**
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* VariableBase class.
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*/
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class VariableBase
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{
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/**
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* Instance properties.
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*/
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public $var;
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public $default;
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/**
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* Convert an operator into real SQL.
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*
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* @param array $args
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* @param string $prefix
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* @return array
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*/
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public function getQueryStringAndParams(array $args, string $prefix = ''): array
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{
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// Return if this method is called on an invalid child class.
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if (!isset($this->column) || !isset($this->operation))
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Invalid invocation of getQueryStringAndParams()');
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}
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// Initialze the return values.
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$where = '';
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$params = array();
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// Process the variable or default value.
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if ($this->var && Query::isValidVariable($args[$this->var]))
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{
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$this->filterValue($args[$this->var]);
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$is_expression = false;
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$value = $args[$this->var];
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}
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elseif ($this->default !== null)
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{
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list($is_expression, $value) = $this->getDefaultValue();
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}
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elseif ($this instanceof Query)
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{
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$is_expression = true;
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$value = '(' . $this->getQueryString($prefix, $args) . ') AS ' . Query::quoteName($this->alias);
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$params = $this->getQueryParams();
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}
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elseif ($this->not_null)
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' is not set');
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}
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else
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{
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return [$where, $params];
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}
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// Quote the column name.
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$column = Query::quoteName($this->column);
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// Prepare the target value.
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$list_ops = array('in' => true, 'notin' => true, 'not_in' => true, 'between' => true);
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if (isset($list_ops[$this->operation]) && !is_array($value) && $value !== '')
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{
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$value = explode(',', preg_replace('/[\s\']/', '', $value));
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}
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// Apply the operator.
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switch ($this->operation)
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{
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case 'equal':
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$where = sprintf('%s = %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'notequal':
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case 'not_equal':
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$where = sprintf('%s != %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'more':
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case 'gte':
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$where = sprintf('%s >= %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'excess':
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case 'gt';
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$where = sprintf('%s > %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'less':
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case 'lte':
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$where = sprintf('%s <= %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'below':
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case 'lt';
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$where = sprintf('%s < %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'regexp';
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$where = sprintf('%s REGEXP %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'notregexp';
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case 'not_regexp';
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$where = sprintf('%s NOT REGEXP %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'like':
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$where = sprintf('%s LIKE %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = '%' . $value . '%';
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break;
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case 'like_prefix':
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case 'like_head':
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$where = sprintf('%s LIKE %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value . '%';
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break;
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case 'like_suffix':
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case 'like_tail':
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$where = sprintf('%s LIKE %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = '%' . $value;
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break;
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case 'notlike':
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$where = sprintf('%s NOT LIKE %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = '%' . $value . '%';
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break;
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case 'notlike_prefix':
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case 'notlike_head':
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$where = sprintf('%s NOT LIKE %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value . '%';
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break;
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case 'notlike_suffix':
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case 'notlike_tail':
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$where = sprintf('%s NOT LIKE %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = '%' . $value;
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break;
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case 'and':
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$where = sprintf('%s & %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = '%' . $value;
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break;
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case 'or':
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$where = sprintf('%s | %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = '%' . $value;
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break;
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case 'xor':
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$where = sprintf('%s ^ %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = '%' . $value;
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break;
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case 'not':
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$where = sprintf('%s ~ %s', $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = '%' . $value;
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break;
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case 'null':
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$where = sprintf('%s IS NULL', $column);
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break;
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case 'notnull':
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case 'not_null':
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$where = sprintf('%s IS NOT NULL', $column);
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break;
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case 'in':
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$count = count($value);
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$placeholders = implode(', ', array_fill(0, $count, '?'));
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$where = sprintf('%s IN (%s)', $column, $placeholders);
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foreach ($value as $item)
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{
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$params[] = $item;
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}
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break;
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case 'notin':
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case 'not_in':
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$count = count($value);
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$placeholders = implode(', ', array_fill(0, $count, '?'));
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$where = sprintf('%s NOT IN (%s)', $column, $placeholders);
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foreach ($value as $item)
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{
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$params[] = $item;
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}
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break;
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case 'between':
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$where = sprintf('%s BETWEEN ? AND ?', $column);
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foreach ($value as $item)
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{
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$params[] = $item;
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}
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break;
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case 'notbetween':
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case 'not_between':
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$where = sprintf('%s NOT BETWEEN ? AND ?', $column);
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foreach ($value as $item)
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{
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$params[] = $item;
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}
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break;
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case 'search':
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$keywords = preg_split('/[\s,]+/', $value, 10, \PREG_SPLIT_NO_EMPTY);
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$conditions = array();
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$placeholders = implode(', ', array_fill(0, count($keywords), '?'));
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foreach ($keywords as $item)
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{
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if (substr($item, 0, 1) === '-')
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{
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$conditions[] = sprintf('%s NOT LIKE ?', $column);
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$item = substr($item, 1);
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}
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else
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{
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$conditions[] = sprintf('%s LIKE ?', $column);
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}
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$params[] = '%' . str_replace(['\\', '_', '%'], ['\\\\', '\_', '\%'], $item) . '%';
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}
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$conditions = implode(' AND ', $conditions);
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$where = count($keywords) === 1 ? $conditions : "($conditions)";
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break;
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case 'plus':
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$where = sprintf('%s = %s + %s', $column, $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'minus':
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$where = sprintf('%s = %s - %s', $column, $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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case 'multiply':
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$where = sprintf('%s = %s * %s', $column, $column, $is_expression ? $value : '?');
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if (!$is_expression) $params[] = $value;
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break;
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default:
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$where = sprintf('%s = ?', $column);
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$params[] = $value;
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}
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// Return the complete condition and parameters.
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return [$where, $params];
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}
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/**
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* Get the current value, falling back to the default value if necessary.
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*
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* @param array $args
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* @return array
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*/
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public function getValue(array $args)
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{
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if ($this->var && Query::isValidVariable($args[$this->var]))
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{
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$is_expression = false;
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$value = $args[$this->var];
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}
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elseif ($this->default !== null)
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{
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list($is_expression, $value) = $this->getDefaultValue();
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}
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return [$is_expression, $value];
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}
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/**
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* Get the default value of this variable.
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*
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* @return array
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*/
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public function getDefaultValue()
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{
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// If the default value is a column name, escape it.
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if (strpos($this->default, '.') !== false && Query::isValidColumnName($this->default))
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{
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return [true, Query::quoteName($this->default)];
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}
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elseif (isset($this->column) && preg_match('/_srl$/', $this->column) && !ctype_digit($this->default))
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{
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return [true, Query::quoteName($this->default)];
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}
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// If the default value is a function shortcut, return an appropriate value.
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switch ($this->default)
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{
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case 'ipaddress()':
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return [false, \RX_CLIENT_IP];
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case 'unixtime()':
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return [false, time()];
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case 'curdate()':
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case 'date()':
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return [false, date('YmdHis')];
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case 'sequence()':
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return [false, getNextSequence()];
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}
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// If the default value is a calculation based on the current value, return a query string.
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if (isset($this->column) && preg_match('/^(plus|minus|multiply)\(([0-9]+)\)$/', $this->default, $matches))
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{
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switch ($matches[1])
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{
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case 'plus':
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return [true, sprintf('%s + %d', Query::quoteName($this->column), $matches[2])];
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case 'minus':
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return [true, sprintf('%s - %d', Query::quoteName($this->column), $matches[2])];
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case 'multiply':
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return [true, sprintf('%s * %d', Query::quoteName($this->column), $matches[2])];
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}
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}
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// Otherwise, just return the literal value.
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return [false, $this->default];
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}
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/**
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* Filter a value.
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*
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* @param mixed $value
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* @return void
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*/
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public function filterValue($value)
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{
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// Apply filters.
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switch (isset($this->filter) ? $this->filter : '')
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{
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case 'email':
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case 'email_address':
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if (!preg_match('/^[\w-]+((?:\.|\+|\~)[\w-]+)*@[\w-]+(\.[\w-]+)+$/', $value))
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' must contain a valid e-mail address');
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}
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break;
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case 'homepage':
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case 'url':
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if (!preg_match('/^(http|https)+(:\/\/)+[0-9a-z_-]+\.[^ ]+$/i', $value))
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' must contain a valid URL');
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}
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break;
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case 'userid':
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case 'user_id':
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if (!preg_match('/^[a-zA-Z]+([_0-9a-zA-Z]+)*$/', $value))
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' must contain a valid user ID');
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}
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break;
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case 'number':
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case 'numbers':
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if (!preg_match('/^(-?)[0-9]+(,\-?[0-9]+)*$/', is_array($value) ? implode(',', $value) : $value))
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' must contain a valid number');
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}
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break;
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case 'alpha':
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if (!ctype_alpha($value))
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' must contain only alphabets');
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}
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break;
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case 'alnum':
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case 'alpha_number':
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if (!ctype_alnum($value))
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' must contain only alphanumeric characters');
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}
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break;
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}
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// Check minimum and maximum lengths.
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$length = iconv_strlen($value, 'UTF-8');
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if (isset($this->minlength) && $this->minlength > 0 && $length < $this->minlength)
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' must contain no less than ' . $this->minlength . ' characters');
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}
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if (isset($this->maxlength) && $this->maxlength > 0 && $length > $this->maxlength)
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{
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throw new \Rhymix\Framework\Exceptions\QueryError('Variable ' . $this->var . ' for column ' . $this->column . ' must contain no more than ' . $this->minlength . ' characters');
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}
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}
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}
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