491 lines
12 KiB
PHP
491 lines
12 KiB
PHP
<?php
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/**
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* Query
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*
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* Free Query Builder / Database Abstraction Layer
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*
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* @package Query
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* @author Timothy J. Warren
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* @copyright Copyright (c) 2012 - 2014
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* @link https://github.com/aviat4ion/Query
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* @license http://philsturgeon.co.uk/code/dbad-license
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*/
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// --------------------------------------------------------------------------
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/**
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* Interface defining the Query Builder class
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*
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* @package Query
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* @subpackage Query
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*/
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interface Query_Builder_Interface {
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// --------------------------------------------------------------------------
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// ! Select Queries
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// --------------------------------------------------------------------------
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/**
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* Specifies rows to select in a query
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*
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* @param string $fields
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* @return $this
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*/
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public function select($fields);
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// --------------------------------------------------------------------------
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/**
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* Selects the maximum value of a field from a query
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*
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* @param string $field
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* @param string $as
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* @return $this
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*/
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public function select_max($field, $as=FALSE);
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// --------------------------------------------------------------------------
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/**
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* Selects the minimum value of a field from a query
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*
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* @param string $field
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* @param string $as
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* @return $this
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*/
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public function select_min($field, $as=FALSE);
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// --------------------------------------------------------------------------
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/**
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* Selects the average value of a field from a query
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*
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* @param string $field
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* @param string $as
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* @return $this
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*/
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public function select_avg($field, $as=FALSE);
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// --------------------------------------------------------------------------
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/**
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* Selects the sum of a field from a query
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*
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* @param string $field
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* @param string $as
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* @return $this
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*/
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public function select_sum($field, $as=FALSE);
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// --------------------------------------------------------------------------
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/**
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* Adds the 'distinct' keyword to a query
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*
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* @return $this
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*/
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public function distinct();
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// --------------------------------------------------------------------------
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/**
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* Shows the query plan for the query
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*
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* @return $this
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*/
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public function explain();
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// --------------------------------------------------------------------------
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/**
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* Specify the database table to select from
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*
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* @param string $tblname
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* @return $this
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*/
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public function from($tblname);
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// --------------------------------------------------------------------------
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// ! 'Like' methods
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// --------------------------------------------------------------------------
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/**
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* Creates a Like clause in the sql statement
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*
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* @param string $field
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* @param mixed $val
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* @param string $pos
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* @return $this
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*/
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public function like($field, $val, $pos='both');
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// --------------------------------------------------------------------------
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/**
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* Generates an OR Like clause
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*
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* @param string $field
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* @param mixed $val
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* @param string $pos
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* @return $this
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*/
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public function or_like($field, $val, $pos='both');
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// --------------------------------------------------------------------------
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/**
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* Generates a NOT LIKE clause
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*
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* @param string $field
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* @param mixed $val
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* @param string $pos
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* @return $this
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*/
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public function not_like($field, $val, $pos='both');
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// --------------------------------------------------------------------------
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/**
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* Generates a OR NOT LIKE clause
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*
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* @param string $field
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* @param mixed $val
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* @param string $pos
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* @return $this
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*/
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public function or_not_like($field, $val, $pos='both');
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// --------------------------------------------------------------------------
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// ! Having methods
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// --------------------------------------------------------------------------
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/**
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* Generates a 'Having' clause
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*
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* @param mixed $key
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* @param mixed $val
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* @return $this
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*/
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public function having($key, $val=array());
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// --------------------------------------------------------------------------
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/**
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* Generates a 'Having' clause prefixed with 'OR'
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*
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* @param mixed $key
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* @param mixed $val
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* @return $this
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*/
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public function or_having($key, $val=array());
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// --------------------------------------------------------------------------
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// ! 'Where' methods
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// --------------------------------------------------------------------------
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/**
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* Specify condition(s) in the where clause of a query
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* Note: this function works with key / value, or a
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* passed array with key / value pairs
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*
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* @param mixed $key
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* @param mixed $val
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* @param bool $escape
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* @return $this
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*/
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public function where($key, $val=array(), $escape = NULL);
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// --------------------------------------------------------------------------
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/**
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* Where clause prefixed with "OR"
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*
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* @param string $key
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* @param mixed $val
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* @return $this
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*/
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public function or_where($key, $val=array());
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// --------------------------------------------------------------------------
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/**
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* Where clause with 'IN' statement
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*
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* @param mixed $field
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* @param mixed $val
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* @return $this
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*/
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public function where_in($field, $val=array());
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// --------------------------------------------------------------------------
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/**
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* Where in statement prefixed with "or"
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*
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* @param string $field
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* @param mixed $val
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* @return $this
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*/
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public function or_where_in($field, $val=array());
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// --------------------------------------------------------------------------
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/**
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* WHERE NOT IN (FOO) clause
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*
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* @param string $field
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* @param mixed $val
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* @return $this
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*/
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public function where_not_in($field, $val=array());
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// --------------------------------------------------------------------------
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/**
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* OR WHERE NOT IN (FOO) clause
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*
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* @param string $field
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* @param mixed $val
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* @return $this
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*/
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public function or_where_not_in($field, $val=array());
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// --------------------------------------------------------------------------
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// ! Other Query Modifier methods
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// --------------------------------------------------------------------------
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/**
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* Sets values for inserts / updates / deletes
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*
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* @param mixed $key
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* @param mixed $val
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* @return $this
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*/
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public function set($key, $val = NULL);
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// --------------------------------------------------------------------------
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/**
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* Creates a join phrase in a compiled query
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*
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* @param string $table
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* @param string $condition
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* @param string $type
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* @return $this
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*/
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public function join($table, $condition, $type='');
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// --------------------------------------------------------------------------
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/**
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* Group the results by the selected field(s)
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*
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* @param mixed $field
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* @return $this
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*/
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public function group_by($field);
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// --------------------------------------------------------------------------
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/**
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* Order the results by the selected field(s)
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*
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* @param string $field
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* @param string $type
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* @return $this
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*/
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public function order_by($field, $type="");
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// --------------------------------------------------------------------------
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/**
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* Set a limit on the current sql statement
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*
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* @param int $limit
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* @param int $offset
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* @return string
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*/
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public function limit($limit, $offset=FALSE);
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// --------------------------------------------------------------------------
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// ! Query Grouping Methods
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// --------------------------------------------------------------------------
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/**
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* Adds a paren to the current query for query grouping
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*
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* @return $this
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*/
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public function group_start();
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// --------------------------------------------------------------------------
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/**
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* Adds a paren to the current query for query grouping,
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* prefixed with 'OR'
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*
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* @return $this
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*/
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public function or_group_start();
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// --------------------------------------------------------------------------
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/**
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* Adds a paren to the current query for query grouping,
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* prefixed with 'OR NOT'
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*
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* @return $this
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*/
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public function or_not_group_start();
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// --------------------------------------------------------------------------
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/**
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* Ends a query group
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*
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* @return $this
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*/
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public function group_end();
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// --------------------------------------------------------------------------
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// ! Query execution methods
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// --------------------------------------------------------------------------
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/**
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* Select and retrieve all records from the current table, and/or
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* execute current compiled query
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*
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* @param $table
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* @param int $limit
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* @param int $offset
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* @return object
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*/
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public function get($table='', $limit=FALSE, $offset=FALSE);
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// --------------------------------------------------------------------------
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/**
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* Convience method for get() with a where clause
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*
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* @param string $table
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* @param array $where
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* @param int $limit
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* @param int $offset
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* @return object
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*/
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public function get_where($table, $where=array(), $limit=FALSE, $offset=FALSE);
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// --------------------------------------------------------------------------
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/**
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* Retreive the number of rows in the selected table
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*
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* @param string $table
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* @return int
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*/
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public function count_all($table);
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// --------------------------------------------------------------------------
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/**
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* Retrieve the number of results for the generated query - used
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* in place of the get() method
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*
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* @param string $table
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* @return int
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*/
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public function count_all_results($table='');
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// --------------------------------------------------------------------------
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/**
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* Creates an insert clause, and executes it
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*
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* @param string $table
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* @param mixed $data
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* @return mixed
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*/
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public function insert($table, $data=array());
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// --------------------------------------------------------------------------
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/**
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* Creates an update clause, and executes it
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*
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* @param string $table
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* @param mixed $data
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* @return mixed
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*/
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public function update($table, $data=array());
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// --------------------------------------------------------------------------
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/**
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* Deletes data from a table
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*
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* @param string $table
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* @param mixed $where
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* @return mixed
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*/
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public function delete($table, $where='');
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// --------------------------------------------------------------------------
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// ! SQL Returning Methods
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// --------------------------------------------------------------------------
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/**
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* Returns the generated 'select' sql query
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*
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* @param string $table
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* @param bool $reset
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* @return string
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*/
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public function get_compiled_select($table='', $reset=TRUE);
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// --------------------------------------------------------------------------
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/**
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* Returns the generated 'insert' sql query
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*
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* @param string $table
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* @param bool $reset
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* @return string
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*/
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public function get_compiled_insert($table, $reset=TRUE);
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// --------------------------------------------------------------------------
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/**
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* Returns the generated 'update' sql query
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*
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* @param string $table
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* @param bool $reset
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* @return string
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*/
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public function get_compiled_update($table='', $reset=TRUE);
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// --------------------------------------------------------------------------
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/**
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* Returns the generated 'delete' sql query
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*
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* @param string $table
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* @param bool $reset
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* @return string
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*/
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public function get_compiled_delete($table="", $reset=TRUE);
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// --------------------------------------------------------------------------
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// ! Miscellaneous Methods
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// --------------------------------------------------------------------------
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/**
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* Clear out the class variables, so the next query can be run
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*
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* @return void
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*/
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public function reset_query();
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}
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// End of query_builder_interface.php
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