420 lines
11 KiB
PHP
420 lines
11 KiB
PHP
<?php
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namespace SilverStripe\Forms;
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use IntlDateFormatter;
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use InvalidArgumentException;
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use SilverStripe\i18n\i18n;
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/**
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* A composite field for date and time entry,
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* based on {@link DateField} and {@link TimeField}.
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* Usually saves into a single {@link DBDateTime} database column.
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* If you want to save into {@link Date} or {@link Time} columns,
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* please instanciate the fields separately.
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*
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* # Configuration
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*
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* Individual options are configured either on the DatetimeField, or on individual
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* sub-fields accessed via getDateField() or getTimeField()
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*
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* Example:
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* <code>
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* $field = new DatetimeField('Name', 'Label');
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* $field->getDateField()->setDateFormat('yyyy-MM-dd HH:mm');
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* $field->getDateField()->setShowCalendar(true); // field-specific setting
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* </code>
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*
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* - "timezone": Set a different timezone for viewing. {@link dataValue()} will still save
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* the time in PHP's default timezone (date_default_timezone_get()), its only a view setting.
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* Note that the sub-fields ({@link getDateField()} and {@link getTimeField()})
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* are not timezone aware, and will have their values set in local time, rather than server time.
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* - "datetimeorder": An sprintf() template to determine in which order the date and time values will
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* be combined. This is necessary as those separate formats are set in their invididual fields.
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*/
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class DatetimeField extends FormField
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{
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/**
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* @var DateField
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*/
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protected $dateField = null;
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/**
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* @var TimeField
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*/
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protected $timeField = null;
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protected $schemaDataType = FormField::SCHEMA_DATA_TYPE_DATETIME;
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/**
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* Date time order
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*
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* @var string
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*/
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protected $dateTimeOrder = '{date} {time}';
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public function __construct($name, $title = null, $value = "")
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{
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$this->timeField = TimeField::create($name . '[time]', false);
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$this->dateField = DateField::create($name . '[date]', false);
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parent::__construct($name, $title, $value);
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}
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public function setForm($form)
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{
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parent::setForm($form);
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$this->dateField->setForm($form);
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$this->timeField->setForm($form);
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return $this;
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}
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public function setName($name)
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{
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parent::setName($name);
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$this->dateField->setName($name . '[date]');
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$this->timeField->setName($name . '[time]');
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return $this;
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}
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/**
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* Sets value from a submitted form array
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*
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* @param array $value Expected submission value is either an empty value,
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* or an array with the necessary components keyed against 'date' and 'time', each value
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* localised according to each's localisation setting.
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* @param mixed $data
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* @return $this
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*/
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public function setSubmittedValue($value, $data = null)
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{
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// Empty value
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if (empty($value)) {
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$this->value = null;
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$this->dateField->setValue(null);
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$this->timeField->setValue(null);
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return $this;
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}
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// Validate value is submitted in array format
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if (!is_array($value)) {
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throw new InvalidArgumentException("Value is not submitted array");
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}
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// Save each field, and convert from array to iso8601 string
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$this->dateField->setSubmittedValue($value['date'], $value);
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$this->timeField->setSubmittedValue($value['time'], $value);
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// Combine date components back into iso8601 string for the root value
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$this->value = $this->dataValue();
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return $this;
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}
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/**
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* Get formatter for converting to the target timezone, if timezone is set
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* Can return null if no timezone set
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*
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* @return IntlDateFormatter|null
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*/
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protected function getTimezoneFormatter()
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{
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$timezone = $this->getTimezone();
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if (!$timezone) {
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return null;
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}
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// Build new formatter with the altered timezone
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$formatter = clone $this->getISO8601Formatter();
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$formatter->setTimeZone($timezone);
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return $formatter;
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}
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/**
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* Get a date formatter for the ISO 8601 format
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*
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* @return IntlDateFormatter
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*/
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protected function getISO8601Formatter()
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{
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$formatter = IntlDateFormatter::create(
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i18n::config()->uninherited('default_locale'),
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IntlDateFormatter::MEDIUM,
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IntlDateFormatter::MEDIUM,
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date_default_timezone_get() // Default to server timezone
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);
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$formatter->setLenient(false);
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// CLDR iso8601 date.
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// Note we omit timezone from this format, and we assume server TZ always.
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$formatter->setPattern('y-MM-dd HH:mm:ss');
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return $formatter;
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}
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/**
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* Assign value from iso8601 string
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*
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* @param mixed $value
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* @param mixed $data
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* @return $this
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*/
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public function setValue($value, $data = null)
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{
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// Empty value
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if (empty($value)) {
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$this->value = null;
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$this->dateField->setValue(null);
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$this->timeField->setValue(null);
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return $this;
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}
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if (is_array($value)) {
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throw new InvalidArgumentException("Use setSubmittedValue to assign by array");
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};
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// Validate iso 8601 date
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// If invalid, assign for later validation failure
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$isoFormatter = $this->getISO8601Formatter();
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$timestamp = $isoFormatter->parse($value);
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if ($timestamp === false) {
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$this->dateField->setSubmittedValue($value);
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$this->timeField->setValue(null);
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return $this;
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}
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// Cleanup date
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$value = $isoFormatter->format($timestamp);
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// Save value
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$this->value = $value;
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// Shift iso date into timezone before assignment to subfields
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$timezoneFormatter = $this->getTimezoneFormatter();
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if ($timezoneFormatter) {
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$value = $timezoneFormatter->format($timestamp);
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}
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// Set date / time components, which are unaware of their timezone
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list($date, $time) = explode(' ', $value);
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$this->dateField->setValue($date, $data);
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$this->timeField->setValue($time, $data);
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return $this;
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}
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/**
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* localised time value
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*
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* @return string
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*/
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public function Value()
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{
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$date = $this->dateField->Value();
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$time = $this->timeField->Value();
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return $this->joinDateTime($date, $time);
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}
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/**
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* @param string $date
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* @param string $time
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* @return string
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*/
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protected function joinDateTime($date, $time)
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{
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$format = $this->getDateTimeOrder();
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return strtr($format, [
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'{date}' => $date,
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'{time}' => $time
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]);
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}
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/**
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* Get ISO8601 formatted string in the local server timezone
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*
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* @return string|null
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*/
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public function dataValue()
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{
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// No date means no value (even if time is specified)
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$dateDataValue = $this->getDateField()->dataValue();
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if (empty($dateDataValue)) {
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return null;
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}
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// Build iso8601 timestamp from combined date and time
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$timeDataValue = $this->getTimeField()->dataValue() ?: '00:00:00';
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$value = $dateDataValue . ' ' . $timeDataValue;
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// If necessary, convert timezone
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$timezoneFormatter = $this->getTimezoneFormatter();
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if ($timezoneFormatter) {
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$timestamp = $timezoneFormatter->parse($value);
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$isoFormatter = $this->getISO8601Formatter();
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$value = $isoFormatter->format($timestamp);
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}
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return $value;
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}
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public function setDisabled($bool)
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{
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parent::setDisabled($bool);
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$this->dateField->setDisabled($bool);
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$this->timeField->setDisabled($bool);
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return $this;
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}
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public function setReadonly($bool)
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{
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parent::setReadonly($bool);
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$this->dateField->setReadonly($bool);
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$this->timeField->setReadonly($bool);
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return $this;
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}
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/**
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* @return DateField
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*/
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public function getDateField()
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{
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return $this->dateField;
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}
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/**
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* @param FormField $field
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*/
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public function setDateField($field)
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{
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$expected = $this->getName() . '[date]';
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if ($field->getName() != $expected) {
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throw new InvalidArgumentException(sprintf(
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'Wrong name format for date field: "%s" (expected "%s")',
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$field->getName(),
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$expected
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));
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}
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$field->setForm($this->getForm());
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$field->setValue($this->dateField->dataValue());
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$this->dateField = $field;
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}
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/**
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* @return TimeField
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*/
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public function getTimeField()
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{
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return $this->timeField;
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}
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/**
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* @param FormField $field
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*/
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public function setTimeField($field)
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{
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$expected = $this->getName() . '[time]';
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if ($field->getName() != $expected) {
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throw new InvalidArgumentException(sprintf(
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'Wrong name format for time field: "%s" (expected "%s")',
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$field->getName(),
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$expected
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));
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}
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$field->setForm($this->getForm());
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$field->setValue($this->timeField->dataValue());
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$this->timeField = $field;
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}
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/**
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* Set default locale for this field. If omitted will default to the current locale.
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*
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* @param string $locale
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* @return $this
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*/
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public function setLocale($locale)
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{
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$this->dateField->setLocale($locale);
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$this->timeField->setLocale($locale);
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return $this;
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}
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/**
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* Get locale for this field
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*
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* @return string
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*/
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public function getLocale()
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{
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return $this->dateField->getLocale();
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}
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public function validate($validator)
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{
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$dateValid = $this->dateField->validate($validator);
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$timeValid = $this->timeField->validate($validator);
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// Validate if both subfields are valid
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return $dateValid && $timeValid;
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}
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public function performReadonlyTransformation()
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{
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$field = clone $this;
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$field->setReadonly(true);
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return $field;
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}
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public function __clone()
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{
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$this->dateField = clone $this->dateField;
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$this->timeField = clone $this->timeField;
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}
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/**
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* @return string
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*/
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public function getTimezone()
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{
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return $this->timezone;
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}
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/**
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* Custom timezone
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*
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* @var string
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*/
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protected $timezone = null;
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/**
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* @param string $timezone
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* @return $this
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*/
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public function setTimezone($timezone)
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{
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if ($this->value && $timezone !== $this->timezone) {
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throw new \BadMethodCallException("Can't change timezone after setting a value");
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}
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// Note: DateField has no timezone option, and TimeField::setTimezone
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// should be ignored
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$this->timezone = $timezone;
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return $this;
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}
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/**
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* @return string
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*/
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public function getDateTimeOrder()
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{
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return $this->dateTimeOrder;
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}
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/**
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* Set date time order format string. Use {date} and {time} as placeholders.
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*
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* @param string $dateTimeOrder
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* @return $this
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*/
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public function setDateTimeOrder($dateTimeOrder)
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{
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$this->dateTimeOrder = $dateTimeOrder;
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return $this;
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}
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}
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