mirror of
https://github.com/silverstripe/silverstripe-reports
synced 2024-10-22 11:05:53 +02:00
433 lines
12 KiB
PHP
433 lines
12 KiB
PHP
<?php
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/**
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* Base "abstract" class creating reports on your data.
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*
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* Creating reports
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* ================
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*
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* Creating a new report is a matter overloading a few key methods
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*
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* {@link title()}: Return the title - i18n is your responsibility
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* {@link description()}: Return the description - i18n is your responsibility
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* {@link sourceQuery()}: Return a SS_List of the search results
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* {@link columns()}: Return information about the columns in this report.
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* {@link parameterFields()}: Return a FieldList of the fields that can be used to filter this
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* report.
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*
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* If you wish to modify the report in more extreme ways, you could overload these methods instead.
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*
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* {@link getReportField()}: Return a FormField in the place where your report's TableListField
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* usually appears.
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* {@link getCMSFields()}: Return the FieldList representing the complete right-hand area of the
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* report, including the title, description, parameter fields, and results.
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*
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* Showing reports to the user
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* ===========================
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*
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* Right now, all subclasses of SS_Report will be shown in the ReportAdmin. In SS3 there is only
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* one place where reports can go, so this class is greatly simplifed from its version in SS2.
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*
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* @package reports
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*/
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class SS_Report extends ViewableData {
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/**
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* This is the title of the report,
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* used by the ReportAdmin templates.
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*
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* @var string
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*/
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protected $title = '';
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/**
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* This is a description about what this
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* report does. Used by the ReportAdmin
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* templates.
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*
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* @var string
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*/
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protected $description = '';
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/**
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* The class of object being managed by this report.
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* Set by overriding in your subclass.
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*/
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protected $dataClass = 'SiteTree';
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/**
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* A field that specifies the sort order of this report
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* @var int
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*/
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protected $sort = 0;
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/**
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* Reports which should not be collected and returned in get_reports
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* @var array
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*/
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public static $excluded_reports = array(
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'SS_Report',
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'SS_ReportWrapper',
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'SideReportWrapper'
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);
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/**
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* Return the title of this report.
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*
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* You have two ways of specifying the description:
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* - overriding description(), which lets you support i18n
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* - defining the $description property
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*/
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public function title() {
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return $this->title;
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}
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/**
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* Allows access to title as a property
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*
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* @return string
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*/
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public function getTitle() {
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return $this->title();
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}
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/**
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* Return the description of this report.
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*
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* You have two ways of specifying the description:
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* - overriding description(), which lets you support i18n
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* - defining the $description property
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*/
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public function description() {
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return $this->description;
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}
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/**
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* Return the {@link SQLQuery} that provides your report data.
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*/
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public function sourceQuery($params) {
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if($this->hasMethod('sourceRecords')) {
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return $this->sourceRecords()->dataQuery();
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} else {
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user_error("Please override sourceQuery()/sourceRecords() and columns() or, if necessary, override getReportField()", E_USER_ERROR);
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}
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}
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/**
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* Return a SS_List records for this report.
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*/
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public function records($params) {
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if($this->hasMethod('sourceRecords')) {
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return $this->sourceRecords($params, null, null);
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} else {
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$query = $this->sourceQuery();
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$results = new ArrayList();
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foreach($query->execute() as $data) {
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$class = $this->dataClass();
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$result = new $class($data);
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$results->push($result);
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}
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return $results;
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}
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}
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/**
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* Return the data class for this report
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*/
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public function dataClass() {
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return $this->dataClass;
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}
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public function getLink($action = null) {
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return Controller::join_links(
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'admin/reports/',
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"$this->class",
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'/', // trailing slash needed if $action is null!
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"$action"
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);
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}
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/**
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* Exclude certain reports classes from the list of Reports in the CMS
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* @param $reportClass Can be either a string with the report classname or an array of reports classnames
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*/
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static public function add_excluded_reports($reportClass) {
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if (is_array($reportClass)) {
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self::$excluded_reports = array_merge(self::$excluded_reports, $reportClass);
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} else {
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if (is_string($reportClass)) {
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//add to the excluded reports, so this report doesn't get used
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self::$excluded_reports[] = $reportClass;
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}
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}
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}
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/**
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* Return an array of excluded reports. That is, reports that will not be included in
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* the list of reports in report admin in the CMS.
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* @return array
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*/
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static public function get_excluded_reports() {
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return self::$excluded_reports;
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}
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/**
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* Return the SS_Report objects making up the given list.
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* @return Array of SS_Report objects
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*/
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static public function get_reports() {
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$reports = ClassInfo::subclassesFor(get_called_class());
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$reportsArray = array();
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if ($reports && count($reports) > 0) {
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//collect reports into array with an attribute for 'sort'
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foreach($reports as $report) {
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if (in_array($report, self::$excluded_reports)) continue; //don't use the SS_Report superclass
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$reflectionClass = new ReflectionClass($report);
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if ($reflectionClass->isAbstract()) continue; //don't use abstract classes
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$reportObj = new $report;
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if (method_exists($reportObj,'sort')) $reportObj->sort = $reportObj->sort(); //use the sort method to specify the sort field
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$reportsArray[$report] = $reportObj;
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}
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}
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uasort($reportsArray, function($a, $b) {
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if($a->sort == $b->sort) return 0;
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else return ($a->sort < $b->sort) ? -1 : 1;
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});
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return $reportsArray;
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}
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/////////////////////// UI METHODS ///////////////////////
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/**
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* Returns a FieldList with which to create the CMS editing form.
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* You can use the extend() method of FieldList to create customised forms for your other
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* data objects.
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*
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* @uses getReportField() to render a table, or similar field for the report. This
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* method should be defined on the SS_Report subclasses.
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*
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* @return FieldList
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*/
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public function getCMSFields() {
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$fields = new FieldList();
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if($title = $this->title()) {
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$fields->push(new LiteralField('ReportTitle', "<h3>{$title}</h3>"));
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}
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if($description = $this->description()) {
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$fields->push(new LiteralField('ReportDescription', "<p>" . $description . "</p>"));
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}
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// Add search fields is available
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if($this->hasMethod('parameterFields') && $parameterFields = $this->parameterFields()) {
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foreach($parameterFields as $field) {
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// Namespace fields for easier handling in form submissions
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$field->setName(sprintf('filters[%s]', $field->getName()));
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$field->addExtraClass('no-change-track'); // ignore in changetracker
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$fields->push($field);
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}
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// Add a search button
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$fields->push(new FormAction('updatereport', _t('GridField.Filter')));
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}
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$fields->push($this->getReportField());
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$this->extend('updateCMSFields', $fields);
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return $fields;
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}
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public function getCMSActions() {
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// getCMSActions() can be extended with updateCMSActions() on a extension
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$actions = new FieldList();
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$this->extend('updateCMSActions', $actions);
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return $actions;
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}
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/**
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* Return a field, such as a {@link GridField} that is
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* used to show and manipulate data relating to this report.
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*
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* Generally, you should override {@link columns()} and {@link records()} to make your report,
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* but if they aren't sufficiently flexible, then you can override this method.
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*
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* @return FormField subclass
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*/
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public function getReportField() {
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// TODO Remove coupling with global state
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$params = isset($_REQUEST['filters']) ? $_REQUEST['filters'] : array();
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$items = $this->sourceRecords($params, null, null);
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$gridFieldConfig = GridFieldConfig::create()->addComponents(
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new GridFieldToolbarHeader(),
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new GridFieldSortableHeader(),
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new GridFieldDataColumns(),
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new GridFieldPaginator(),
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new GridFieldPrintButton(),
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new GridFieldExportButton()
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);
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$gridField = new GridField('Report',$this->title(), $items, $gridFieldConfig);
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$columns = $gridField->getConfig()->getComponentByType('GridFieldDataColumns');
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$displayFields = array();
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$fieldCasting = array();
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$fieldFormatting = array();
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// Parse the column information
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foreach($this->columns() as $source => $info) {
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if(is_string($info)) $info = array('title' => $info);
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if(isset($info['formatting'])) $fieldFormatting[$source] = $info['formatting'];
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if(isset($info['csvFormatting'])) $csvFieldFormatting[$source] = $info['csvFormatting'];
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if(isset($info['casting'])) $fieldCasting[$source] = $info['casting'];
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if(isset($info['link']) && $info['link']) {
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$link = singleton('CMSPageEditController')->Link('show');
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$fieldFormatting[$source] = '<a href=\"' . $link . '/$ID\">$value</a>';
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}
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$displayFields[$source] = isset($info['title']) ? $info['title'] : $source;
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}
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$columns->setDisplayFields($displayFields);
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$columns->setFieldCasting($fieldCasting);
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$columns->setFieldFormatting($fieldFormatting);
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return $gridField;
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}
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/**
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* @param Member $member
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* @return boolean
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*/
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public function canView($member = null) {
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if(!$member && $member !== FALSE) {
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$member = Member::currentUser();
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}
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return true;
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}
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/**
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* Return the name of this report, which
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* is used by the templates to render the
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* name of the report in the report tree,
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* the left hand pane inside ReportAdmin.
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*
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* @return string
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*/
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public function TreeTitle() {
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return $this->title();
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}
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}
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/**
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* SS_ReportWrapper is a base class for creating report wappers.
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*
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* Wrappers encapsulate an existing report to alter their behaviour - they are implementations of
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* the standard GoF decorator pattern.
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*
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* This base class ensure that, by default, wrappers behave in the same way as the report that is
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* being wrapped. You should override any methods that need to behave differently in your subclass
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* of SS_ReportWrapper.
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*
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* It also makes calls to 2 empty methods that you can override {@link beforeQuery()} and
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* {@link afterQuery()}
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*
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* @package reports
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*/
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abstract class SS_ReportWrapper extends SS_Report {
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protected $baseReport;
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public function __construct($baseReport) {
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$this->baseReport = is_string($baseReport) ? new $baseReport : $baseReport;
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$this->dataClass = $this->baseReport->dataClass();
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parent::__construct();
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}
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public function ID() {
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return get_class($this->baseReport) . '_' . get_class($this);
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}
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///////////////////////////////////////////////////////////////////////////////////////////
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// Filtering
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public function parameterFields() {
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return $this->baseReport->parameterFields();
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}
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///////////////////////////////////////////////////////////////////////////////////////////
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// Columns
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public function columns() {
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return $this->baseReport->columns();
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}
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///////////////////////////////////////////////////////////////////////////////////////////
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// Querying
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/**
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* Override this method to perform some actions prior to querying.
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*/
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public function beforeQuery($params) {
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}
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/**
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* Override this method to perform some actions after querying.
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*/
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public function afterQuery() {}
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public function sourceQuery($params) {
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if($this->baseReport->hasMethod('sourceRecords')) {
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// The default implementation will create a fake query from our sourceRecords() method
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return parent::sourceQuery($params);
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} else if($this->baseReport->hasMethod('sourceQuery')) {
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$this->beforeQuery($params);
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$query = $this->baseReport->sourceQuery($params);
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$this->afterQuery();
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return $query;
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} else {
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user_error("Please override sourceQuery()/sourceRecords() and columns() in your base report", E_USER_ERROR);
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}
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}
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public function sourceRecords($params = array(), $sort = null, $limit = null) {
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$this->beforeQuery($params);
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$records = $this->baseReport->sourceRecords($params, $sort, $limit);
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$this->afterQuery();
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return $records;
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}
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///////////////////////////////////////////////////////////////////////////////////////////
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// Pass-through
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public function title() {
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return $this->baseReport->title();
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}
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public function group() {
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return $this->baseReport->hasMethod('group') ? $this->baseReport->group() : 'Group';
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}
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public function sort() {
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return $this->baseReport->hasMethod('sort') ? $this->baseReport->sort() : 0;
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}
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public function description() {
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return $this->baseReport->description();
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}
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public function canView($member = null) {
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return $this->baseReport->canView($member);
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}
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}
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