看板初始化提交
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zephyr
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<?php
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namespace PicoDb\Builder;
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use PicoDb\Database;
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use PicoDb\Table;
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/**
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* Handle SQL conditions
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*
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* @package PicoDb\Builder
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* @author Frederic Guillot
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*/
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class ConditionBuilder
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{
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/**
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* Database instance
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*
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* @access private
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* @var Database
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*/
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private $db;
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/**
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* Condition values
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*
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* @access private
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* @var array
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*/
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private $values = array();
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/**
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* SQL AND conditions
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*
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* @access private
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* @var string[]
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*/
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private $conditions = array();
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/**
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* SQL OR conditions
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*
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* @access private
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* @var OrConditionBuilder[]
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*/
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private $orConditions = array();
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/**
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* SQL condition offset
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*
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* @access private
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* @var int
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*/
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private $orConditionOffset = 0;
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/**
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* Constructor
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*
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* @access public
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* @param Database $db
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*/
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public function __construct(Database $db)
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{
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$this->db = $db;
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}
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/**
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* Build the SQL condition
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*
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* @access public
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* @return string
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*/
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public function build()
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{
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return empty($this->conditions) ? '' : ' WHERE '.implode(' AND ', $this->conditions);
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}
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/**
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* Get condition values
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*
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* @access public
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* @return array
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*/
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public function getValues()
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{
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return $this->values;
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}
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/**
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* Returns true if there is some conditions
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*
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* @access public
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* @return boolean
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*/
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public function hasCondition()
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{
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return ! empty($this->conditions);
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}
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/**
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* Add custom condition
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*
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* @access public
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* @param string $sql
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*/
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public function addCondition($sql)
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{
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if ($this->orConditionOffset > 0) {
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$this->orConditions[$this->orConditionOffset]->withCondition($sql);
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}
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else {
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$this->conditions[] = $sql;
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}
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}
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/**
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* Start OR condition
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*
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* @access public
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*/
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public function beginOr()
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{
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$this->orConditionOffset++;
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$this->orConditions[$this->orConditionOffset] = new OrConditionBuilder();
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}
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/**
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* Close OR condition
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*
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* @access public
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*/
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public function closeOr()
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{
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$condition = $this->orConditions[$this->orConditionOffset]->build();
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$this->orConditionOffset--;
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if ($this->orConditionOffset > 0) {
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$this->orConditions[$this->orConditionOffset]->withCondition($condition);
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} else {
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$this->conditions[] = $condition;
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}
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}
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/**
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* Equal condition
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*
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* @access public
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* @param string $column
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* @param mixed $value
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*/
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public function eq($column, $value)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' = ?');
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$this->values[] = $value;
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}
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/**
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* Not equal condition
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*
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* @access public
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* @param string $column
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* @param mixed $value
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*/
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public function neq($column, $value)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' != ?');
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$this->values[] = $value;
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}
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/**
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* IN condition
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*
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* @access public
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* @param string $column
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* @param array $values
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*/
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public function in($column, array $values)
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{
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if (! empty($values)) {
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$this->addCondition($this->db->escapeIdentifier($column).' IN ('.implode(', ', array_fill(0, count($values), '?')).')');
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$this->values = array_merge($this->values, $values);
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}
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}
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/**
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* IN condition with a subquery
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*
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* @access public
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* @param string $column
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* @param Table $subquery
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*/
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public function inSubquery($column, Table $subquery)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' IN ('.$subquery->buildSelectQuery().')');
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$this->values = array_merge($this->values, $subquery->getConditionBuilder()->getValues());
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}
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/**
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* NOT IN condition
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*
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* @access public
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* @param string $column
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* @param array $values
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*/
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public function notIn($column, array $values)
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{
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if (! empty($values)) {
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$this->addCondition($this->db->escapeIdentifier($column).' NOT IN ('.implode(', ', array_fill(0, count($values), '?')).')');
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$this->values = array_merge($this->values, $values);
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}
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}
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/**
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* NOT IN condition with a subquery
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*
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* @access public
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* @param string $column
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* @param Table $subquery
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*/
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public function notInSubquery($column, Table $subquery)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' NOT IN ('.$subquery->buildSelectQuery().')');
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$this->values = array_merge($this->values, $subquery->getConditionBuilder()->getValues());
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}
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/**
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* LIKE condition
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*
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* @access public
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* @param string $column
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* @param mixed $value
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*/
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public function like($column, $value)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' '.$this->db->getDriver()->getOperator('LIKE').' ?');
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$this->values[] = $value;
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}
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/**
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* ILIKE condition
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*
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* @access public
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* @param string $column
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* @param mixed $value
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*/
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public function ilike($column, $value)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' '.$this->db->getDriver()->getOperator('ILIKE').' ?');
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$this->values[] = $value;
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}
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/**
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* Greater than condition
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*
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* @access public
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* @param string $column
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* @param mixed $value
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*/
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public function gt($column, $value)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' > ?');
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$this->values[] = $value;
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}
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/**
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* Greater than condition with subquery
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*
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* @access public
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* @param string $column
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* @param Table $subquery
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*/
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public function gtSubquery($column, Table $subquery)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' > ('.$subquery->buildSelectQuery().')');
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$this->values = array_merge($this->values, $subquery->getConditionBuilder()->getValues());
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}
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/**
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* Lower than condition
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*
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* @access public
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* @param string $column
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* @param mixed $value
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*/
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public function lt($column, $value)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' < ?');
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$this->values[] = $value;
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}
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/**
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* Lower than condition with subquery
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*
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* @access public
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* @param string $column
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* @param Table $subquery
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*/
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public function ltSubquery($column, Table $subquery)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' < ('.$subquery->buildSelectQuery().')');
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$this->values = array_merge($this->values, $subquery->getConditionBuilder()->getValues());
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}
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/**
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* Greater than or equals condition
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*
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* @access public
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* @param string $column
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* @param mixed $value
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*/
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public function gte($column, $value)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' >= ?');
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$this->values[] = $value;
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}
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/**
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* Greater than or equal condition with subquery
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*
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* @access public
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* @param string $column
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* @param Table $subquery
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*/
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public function gteSubquery($column, Table $subquery)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' >= ('.$subquery->buildSelectQuery().')');
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$this->values = array_merge($this->values, $subquery->getConditionBuilder()->getValues());
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}
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/**
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* Lower than or equals condition
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*
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* @access public
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* @param string $column
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* @param mixed $value
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*/
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public function lte($column, $value)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' <= ?');
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$this->values[] = $value;
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}
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/**
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* Lower than or equal condition with subquery
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*
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* @access public
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* @param string $column
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* @param Table $subquery
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*/
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public function lteSubquery($column, Table $subquery)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' <= ('.$subquery->buildSelectQuery().')');
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$this->values = array_merge($this->values, $subquery->getConditionBuilder()->getValues());
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}
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/**
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* IS NULL condition
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*
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* @access public
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* @param string $column
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*/
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public function isNull($column)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' IS NULL');
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}
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/**
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* IS NOT NULL condition
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*
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* @access public
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* @param string $column
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*/
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public function notNull($column)
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{
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$this->addCondition($this->db->escapeIdentifier($column).' IS NOT NULL');
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}
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}
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