383 lines
10 KiB
PHP
383 lines
10 KiB
PHP
<?php
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/**
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* Represents a date field.
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* The field currently supports New Zealand date format (DD/MM/YYYY),
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* or an ISO 8601 formatted date (YYYY-MM-DD).
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* Alternatively you can set a timestamp that is evaluated through
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* PHP's built-in date() function according to your system locale.
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*
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* Example definition via {@link DataObject::$db}:
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* <code>
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* static $db = array(
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* "Expires" => "Date",
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* );
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* </code>
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*
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* @todo Add localization support, see http://open.silverstripe.com/ticket/2931
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*
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* @package framework
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* @subpackage model
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*/
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class Date extends DBField {
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public function setValue($value, $record = null) {
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if($value === false || $value === null || (is_string($value) && !strlen($value))) {
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// don't try to evaluate empty values with strtotime() below, as it returns "1970-01-01" when it should be
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// saved as NULL in database
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$this->value = null;
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return;
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}
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// @todo This needs tidy up (what if you only specify a month and a year, for example?)
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if(is_array($value)) {
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if(!empty($value['Day']) && !empty($value['Month']) && !empty($value['Year'])) {
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$this->value = $value['Year'] . '-' . $value['Month'] . '-' . $value['Day'];
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return;
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} else {
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// return nothing (so checks below don't fail on an empty array)
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return null;
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}
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}
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// Default to NZ date format - strtotime expects a US date
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if(preg_match('#^([0-9]+)/([0-9]+)/([0-9]+)$#', $value, $parts)) {
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$value = "$parts[2]/$parts[1]/$parts[3]";
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}
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if(is_numeric($value)) {
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$this->value = date('Y-m-d', $value);
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} elseif(is_string($value)) {
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try{
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$date = new DateTime($value);
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$this->value = $date->Format('Y-m-d');
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return;
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}catch(Exception $e){
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$this->value = null;
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return;
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}
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}
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}
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/**
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* Returns the date in the format dd/mm/yy
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*/
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public function Nice() {
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if($this->value) return $this->Format('d/m/Y');
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}
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/**
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* Returns the date in US format: “01/18/2006”
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*/
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public function NiceUS() {
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if($this->value) return $this->Format('m/d/Y');
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}
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/**
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* Returns the year from the given date
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*/
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public function Year() {
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if($this->value) return $this->Format('Y');
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}
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/**
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* Returns the Full day, of the given date.
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*/
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public function Day(){
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if($this->value) return $this->Format('l');
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}
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/**
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* Returns a full textual representation of a month, such as January.
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*/
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public function Month() {
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if($this->value) return $this->Format('F');
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}
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/**
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* Returns the short version of the month such as Jan
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*/
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public function ShortMonth() {
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if($this->value) return $this->Format('M');
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}
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/**
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* Returns the day of the month.
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* @param boolean $includeOrdinals Include ordinal suffix to day, e.g. "th" or "rd"
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* @return string
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*/
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public function DayOfMonth($includeOrdinal = false) {
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if($this->value) {
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$format = 'j';
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if ($includeOrdinal) $format .= 'S';
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return $this->Format($format);
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}
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}
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/**
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* Returns the date in the format 24 December 2006
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*/
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public function Long() {
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if($this->value) return $this->Format('j F Y');
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}
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/**
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* Returns the date in the format 24 Dec 2006
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*/
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public function Full() {
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if($this->value) return $this->Format('j M Y');
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}
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/**
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* Return the date using a particular formatting string.
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*
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* @param string $format Format code string. e.g. "d M Y" (see http://php.net/date)
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* @return string The date in the requested format
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*/
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public function Format($format) {
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if($this->value){
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$date = new DateTime($this->value);
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return $date->Format($format);
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}
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}
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/**
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* Return the date formatted using the given strftime formatting string.
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*
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* strftime obeys the current LC_TIME/LC_ALL when printing lexical values
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* like day- and month-names
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*/
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public function FormatI18N($formattingString) {
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if($this->value) {
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$fecfrm = strftime($formattingString, strtotime($this->value));
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return utf8_encode($fecfrm);
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}
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}
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/*
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* Return a string in the form "12 - 16 Sept" or "12 Aug - 16 Sept"
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* @param Date $otherDateObj Another date object specifying the end of the range
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* @param boolean $includeOrdinals Include ordinal suffix to day, e.g. "th" or "rd"
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* @return string
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*/
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public function RangeString($otherDateObj, $includeOrdinals = false) {
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$d1 = $this->DayOfMonth($includeOrdinals);
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$d2 = $otherDateObj->DayOfMonth($includeOrdinals);
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$m1 = $this->ShortMonth();
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$m2 = $otherDateObj->ShortMonth();
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$y1 = $this->Year();
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$y2 = $otherDateObj->Year();
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if($y1 != $y2) return "$d1 $m1 $y1 - $d2 $m2 $y2";
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else if($m1 != $m2) return "$d1 $m1 - $d2 $m2 $y1";
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else return "$d1 - $d2 $m1 $y1";
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}
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public function Rfc822() {
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if($this->value) return date('r', strtotime($this->value));
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}
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public function Rfc2822() {
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if($this->value) return date('Y-m-d H:i:s', strtotime($this->value));
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}
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public function Rfc3339() {
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$timestamp = ($this->value) ? strtotime($this->value) : false;
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if(!$timestamp) return false;
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$date = date('Y-m-d\TH:i:s', $timestamp);
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$matches = array();
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if(preg_match('/^([\-+])(\d{2})(\d{2})$/', date('O', $timestamp), $matches)) {
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$date .= $matches[1].$matches[2].':'.$matches[3];
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} else {
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$date .= 'Z';
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}
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return $date;
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}
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/**
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* Returns the number of seconds/minutes/hours/days or months since the timestamp
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*/
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public function Ago() {
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if($this->value) {
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if(strtotime($this->value) == time() || time() > strtotime($this->value)) {
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return _t(
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'Date.TIMEDIFFAGO',
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"{difference} ago",
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'Natural language time difference, e.g. 2 hours ago',
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array('difference' => $this->TimeDiff())
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);
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} else {
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return _t(
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'Date.TIMEDIFFIN',
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"in {difference}",
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'Natural language time difference, e.g. in 2 hours',
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array('difference' => $this->TimeDiff())
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);
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}
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}
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}
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public function TimeDiff() {
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if($this->value) {
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$ago = abs(time() - strtotime($this->value));
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if($ago < 60) {
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$span = $ago;
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return ($span != 1) ? "{$span} "._t("Date.SECS", " secs") : "{$span} "._t("Date.SEC", " sec");
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}
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if($ago < 3600) {
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$span = round($ago/60);
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return ($span != 1) ? "{$span} "._t("Date.MINS", " mins") : "{$span} "._t("Date.MIN", " min");
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}
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if($ago < 86400) {
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$span = round($ago/3600);
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return ($span != 1) ? "{$span} "._t("Date.HOURS", " hours") : "{$span} "._t("Date.HOUR", " hour");
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}
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if($ago < 86400*30) {
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$span = round($ago/86400);
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return ($span != 1) ? "{$span} "._t("Date.DAYS", " days") : "{$span} "._t("Date.DAY", " day");
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}
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if($ago < 86400*365) {
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$span = round($ago/86400/30);
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return ($span != 1) ? "{$span} "._t("Date.MONTHS", " months") : "{$span} "._t("Date.MONTH", " month");
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}
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if($ago > 86400*365) {
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$span = round($ago/86400/365);
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return ($span != 1) ? "{$span} "._t("Date.YEARS", " years") : "{$span} "._t("Date.YEAR", " year");
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}
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}
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}
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/**
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* Gets the time difference, but always returns it in a certain format
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* @param string $format The format, could be one of these:
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* 'seconds', 'minutes', 'hours', 'days', 'months', 'years'.
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*
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* @return string
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*/
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public function TimeDiffIn($format) {
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if($this->value) {
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$ago = abs(time() - strtotime($this->value));
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switch($format) {
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case "seconds":
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$span = $ago;
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return ($span != 1) ? "{$span} seconds" : "{$span} second";
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break;
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case "minutes":
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$span = round($ago/60);
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return ($span != 1) ? "{$span} minutes" : "{$span} minute";
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break;
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case "hours":
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$span = round($ago/3600);
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return ($span != 1) ? "{$span} hours" : "{$span} hour";
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break;
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case "days":
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$span = round($ago/86400);
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return ($span != 1) ? "{$span} days" : "{$span} day";
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break;
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case "months":
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$span = round($ago/86400/30);
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return ($span != 1) ? "{$span} months" : "{$span} month";
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break;
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case "years":
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$span = round($ago/86400/365);
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return ($span != 1) ? "{$span} years" : "{$span} year";
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break;
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}
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}
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}
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public function requireField() {
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$parts=Array('datatype'=>'date', 'arrayValue'=>$this->arrayValue);
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$values=Array('type'=>'date', 'parts'=>$parts);
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DB::requireField($this->tableName, $this->name, $values);
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}
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/**
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* Returns true if date is in the past.
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* @return boolean
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*/
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public function InPast() {
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return strtotime($this->value) < time();
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}
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/**
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* Returns true if date is in the future.
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* @return boolean
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*/
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public function InFuture() {
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return strtotime($this->value) > time();
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}
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/**
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* Returns true if date is today.
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* @return boolean
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*/
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public function IsToday() {
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return (date('Y-m-d', strtotime($this->value)) == date('Y-m-d', time()));
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}
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/**
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* Returns a date suitable for insertion into a URL and use by the system.
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*/
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public function URLDate() {
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return date('Y-m-d', strtotime($this->value));
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}
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public function days_between($fyear, $fmonth, $fday, $tyear, $tmonth, $tday){
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return abs((mktime ( 0, 0, 0, $fmonth, $fday, $fyear) - mktime ( 0, 0, 0, $tmonth, $tday, $tyear))/(60*60*24));
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}
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public function day_before($fyear, $fmonth, $fday){
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return date ("Y-m-d", mktime (0,0,0,$fmonth,$fday-1,$fyear));
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}
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public function next_day($fyear, $fmonth, $fday){
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return date ("Y-m-d", mktime (0,0,0,$fmonth,$fday+1,$fyear));
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}
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public function weekday($fyear, $fmonth, $fday){ // 0 is a Monday
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return (((mktime ( 0, 0, 0, $fmonth, $fday, $fyear) - mktime ( 0, 0, 0, 7, 17, 2006))/(60*60*24))+700000) % 7;
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}
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public function prior_monday($fyear, $fmonth, $fday){
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return date ("Y-m-d", mktime (0,0,0,$fmonth,$fday-$this->weekday($fyear, $fmonth, $fday),$fyear));
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}
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/**
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* Return the nearest date in the past, based on day and month.
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* Automatically attaches the correct year.
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*
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* This is useful for determining a financial year start or end date.
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*
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* @param $fmonth int The number of the month (e.g. 3 is March, 4 is April)
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* @param $fday int The day of the month
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* @param $fyear int Determine historical value
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* @return string Date in YYYY-MM-DD format
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*/
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public static function past_date($fmonth, $fday = 1, $fyear = null) {
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if(!$fyear) $fyear = date('Y');
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$fday = (int) $fday;
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$fmonth = (int) $fmonth;
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$fyear = (int) $fyear;
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$pastDate = mktime(0, 0, 0, $fmonth, $fday, $fyear);
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$curDate = mktime(0, 0, 0, date('m'), date('d'), $fyear);
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if($pastDate < $curDate) {
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return date('Y-m-d', mktime(0, 0, 0, $fmonth, $fday, $fyear));
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} else {
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return date('Y-m-d', mktime(0, 0, 0, $fmonth, $fday, $fyear - 1));
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}
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}
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public function scaffoldFormField($title = null, $params = null) {
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return new DateField($this->name, $title);
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}
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}
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