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