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160 lines
3.9 KiB
160 lines
3.9 KiB
<?php
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/**
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* @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
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*
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* @author Joas Schilling <coding@schilljs.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCP\DB\QueryBuilder;
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/**
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* This class provides a builder for sql some functions
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*
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* @since 12.0.0
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*/
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interface IFunctionBuilder {
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/**
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* Calculates the MD5 hash of a given input
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*
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* @param mixed $input The input to be hashed
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*
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* @return IQueryFunction
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* @since 12.0.0
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*/
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public function md5($input);
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/**
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* Combines two input strings
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*
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* @param mixed $x The first input string
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* @param mixed $y The seccond input string
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*
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* @return IQueryFunction
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* @since 12.0.0
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*/
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public function concat($x, $y);
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/**
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* Takes a substring from the input string
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*
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* @param mixed $input The input string
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* @param mixed $start The start of the substring, note that counting starts at 1
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* @param mixed $length The length of the substring
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*
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* @return IQueryFunction
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* @since 12.0.0
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*/
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public function substring($input, $start, $length = null);
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/**
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* Takes the sum of all rows in a column
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*
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* @param mixed $field the column to sum
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*
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* @return IQueryFunction
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* @since 12.0.0
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*/
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public function sum($field);
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/**
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* Transforms a string field or value to lower case
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*
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* @param mixed $field
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* @return IQueryFunction
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* @since 14.0.0
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*/
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public function lower($field);
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/**
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* @param mixed $x The first input field or number
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* @param mixed $y The second input field or number
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* @return IQueryFunction
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* @since 14.0.0
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*/
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public function add($x, $y);
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/**
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* @param mixed $x The first input field or number
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* @param mixed $y The second input field or number
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* @return IQueryFunction
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* @since 14.0.0
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*/
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public function subtract($x, $y);
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/**
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* @param mixed $count The input to be counted
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* @param string $alias Alias for the counter
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*
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* @return IQueryFunction
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* @since 14.0.0
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*/
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public function count($count = '', $alias = '');
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/**
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* Takes the maximum of all rows in a column
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*
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* If you want to get the maximum value of multiple columns in the same row, use `greatest` instead
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*
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* @param mixed $field the column to maximum
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*
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* @return IQueryFunction
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* @since 18.0.0
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*/
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public function max($field);
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/**
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* Takes the minimum of all rows in a column
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*
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* If you want to get the minimum value of multiple columns in the same row, use `least` instead
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*
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* @param mixed $field the column to minimum
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*
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* @return IQueryFunction
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* @since 18.0.0
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*/
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public function min($field);
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/**
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* Takes the maximum of multiple values
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*
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* If you want to get the maximum value of all rows in a column, use `max` instead
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*
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* @param mixed $x the first input field or number
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* @param mixed $y the first input field or number
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*
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* @return IQueryFunction
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* @since 18.0.0
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*/
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public function greatest($x, $y);
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/**
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* Takes the minimum of multiple values
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*
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* If you want to get the minimum value of all rows in a column, use `min` instead
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*
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* @param mixed $x the first input field or number
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* @param mixed $y the first input field or number
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*
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* @return IQueryFunction
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* @since 18.0.0
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*/
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public function least($x, $y);
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}
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