99 lines
1.8 KiB
PHP
99 lines
1.8 KiB
PHP
<?php namespace Filebase;
|
|
|
|
|
|
class Predicate
|
|
{
|
|
|
|
/**
|
|
* $allowed_operators
|
|
*
|
|
* Allowed operators within the query
|
|
*/
|
|
protected $allowed_operators = [
|
|
'=',
|
|
'==',
|
|
'===',
|
|
'!=',
|
|
'!==',
|
|
'>',
|
|
'<',
|
|
'>=',
|
|
'<=',
|
|
'IN',
|
|
'NOT',
|
|
'LIKE',
|
|
'NOT LIKE',
|
|
'REGEX'
|
|
];
|
|
|
|
|
|
/**
|
|
* $predicates
|
|
*
|
|
* Query clauses
|
|
*/
|
|
protected $predicates = [];
|
|
|
|
/**
|
|
* add
|
|
*
|
|
*/
|
|
public function add($logic,$arg)
|
|
{
|
|
if (!is_array($arg))
|
|
{
|
|
throw new \InvalidArgumentException('Predicate Error: argument passed must be type of array');
|
|
}
|
|
|
|
if (count($arg) == 1)
|
|
{
|
|
if (isset($arg[0]) && is_array($arg[0]))
|
|
{
|
|
foreach($arg[0] as $key => $value)
|
|
{
|
|
if ($value == '') continue;
|
|
|
|
$arg = $this->formatWhere($key, $value);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (count($arg) != 3)
|
|
{
|
|
throw new \InvalidArgumentException('Predicate Error: Must have 3 arguments passed - '.count($arg).' given');
|
|
}
|
|
|
|
if (!in_array($arg[1], $this->allowed_operators))
|
|
{
|
|
throw new \InvalidArgumentException('Predicate Error: Unknown Operator '.$arg[1]);
|
|
}
|
|
|
|
$arg[0] = trim($arg[0]);
|
|
|
|
if ($arg[0] == '')
|
|
{
|
|
throw new \InvalidArgumentException('Field name can not be empty');
|
|
}
|
|
|
|
$this->predicates[$logic][] = $arg;
|
|
}
|
|
|
|
/**
|
|
* formatWhere
|
|
*
|
|
*/
|
|
protected function formatWhere($key, $value)
|
|
{
|
|
return [$key,'==',$value];
|
|
}
|
|
|
|
/**
|
|
* get
|
|
*
|
|
*/
|
|
public function get()
|
|
{
|
|
return array_filter($this->predicates);
|
|
}
|
|
}
|