SummationRow.php
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<?php
/*
"Contact Form to Database" Copyright (C) 2011-2015 Michael Simpson (email : michael.d.simpson@gmail.com)
This file is part of Contact Form to Database.
Contact Form to Database is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Contact Form to Database is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Contact Form to Database.
If not, see <http://www.gnu.org/licenses/>.
*/
class SummationRow {
var $data = array();
var $fieldsToSum = array();
var $hardCodedFields = array();
var $fieldList = array();
var $sumRow = array();
var $isSumRowAppended = false;
/**
* Pass in names of fields to sum
*/
function __construct() {
$args = func_get_args();
foreach ($args as $arg) {
$name_value = explode(':', $arg, 2);
if (count($name_value) == 2) {
$this->hardCodedFields[$name_value[0]] = $name_value[1];
} else {
$this->fieldsToSum[] = $arg;
}
}
}
public function addEntry(&$entry) {
// List of all the fields in a row
if (empty($fieldList)) {
$this->fieldList = array_keys($entry);
}
// Compute sum as we go
foreach ($this->fieldsToSum as $field) {
if (isset($entry[$field])) {
// First value seen
if (!isset($this->sumRow[$field])) {
$this->sumRow[$field] = $entry[$field];
} else {
$this->sumRow[$field] += $entry[$field];
}
}
}
$this->data[] = $entry;
}
public function getTransformedData() {
if (!$this->isSumRowAppended) {
if (!empty($this->data)) {
foreach ($this->fieldList as $field) {
if (isset($this->hardCodedFields[$field])) {
// Hardcoded values
$this->sumRow[$field] = $this->hardCodedFields[$field];
} elseif (!isset($this->sumRow[$field])) {
// Non-sum values
$this->sumRow[$field] = '';
}
}
$this->data[] = $this->sumRow;
}
$this->isSumRowAppended = true;
}
return $this->data;
}
}