silverstripe-userforms/code/Form/UserFormsGridFieldFilterHeader.php

<?php

/**
 * Extension to the build in SilverStripe {@link GridField} to allow for
 * filtering {@link SubmittedForm} objects in the submissions tab by
 * entering the value of a field
 *
 * @package userforms
 */
class UserFormsGridFieldFilterHeader extends GridFieldFilterHeader
{

    /**
     * A map of name => value of columns from all submissions
     * @var array
     */
    protected $columns;

    public function setColumns($columns)
    {
        $this->columns = $columns;
    }

    public function handleAction(GridField $gridField, $actionName, $arguments, $data)
    {
        if (!$this->checkDataType($gridField->getList())) {
            return;
        }

        if ($actionName === 'filter') {
            $gridField->State->UserFormsGridField = array(
                'filter' => isset($data['FieldNameFilter']) ? $data['FieldNameFilter'] : null,
                'value' => isset($data['FieldValue']) ? $data['FieldValue'] : null,
                'start' => isset($data['StartFilter']) ? $data['StartFilter'] : null,
                'end' => isset($data['EndFilter']) ? $data['EndFilter'] : null
            );
        }
    }


    public function getHTMLFragments($gridField)
    {
        $fields = new ArrayList();
        $state = $gridField->State->UserFormsGridField;

        $selectedField = $state->filter;
        $selectedValue = $state->value;

        // show dropdown of all the fields available from the submitted form fields
        // that have been saved. Takes the titles from the currently live form.
        $columnField = new DropdownField('FieldNameFilter', '');
        $columnField->setSource($this->columns);
        $columnField->setEmptyString(_t('UserFormsGridFieldFilterHeader.FILTERSUBMISSIONS', 'Filter Submissions..'));
        $columnField->setHasEmptyDefault(true);
        $columnField->setValue($selectedField);

        $valueField = new TextField('FieldValue', '', $selectedValue);

        $columnField->addExtraClass('ss-gridfield-sort');
        $columnField->addExtraClass('no-change-track');

        $valueField->addExtraClass('ss-gridfield-sort');
        $valueField->addExtraClass('no-change-track');
        $valueField->setAttribute(
            'placeholder',
            _t('UserFormsGridFieldFilterHeader.WHEREVALUEIS', 'where value is..'
        ));

        $fields->push(new FieldGroup(new CompositeField(
            $columnField,
            $valueField
        )));

        $fields->push(new FieldGroup(new CompositeField(
            $start = new DateField('StartFilter', _t('UserFormsGridFieldFilterHeader.FROM', 'From')),
            $end = new DateField('EndFilter', _t('UserFormsGridFieldFilterHeader.TILL', 'Till'))
        )));

        foreach (array($start, $end) as $date) {
            $date->setConfig('showcalendar', true);
            $date->setConfig('dateformat', 'y-mm-dd');
            $date->setConfig('datavalueformat', 'y-mm-dd');
            $date->addExtraClass('no-change-track');
        }

        $end->setValue($state->end);
        $start->setValue($state->start);


        $fields->push($actions = new FieldGroup(
            GridField_FormAction::create($gridField, 'filter', false, 'filter', null)
                ->addExtraClass('ss-gridfield-button-filter')
                ->setAttribute('title', _t('GridField.Filter', "Filter"))
                ->setAttribute('id', 'action_filter_' . $gridField->getModelClass() . '_' . $columnField),
            GridField_FormAction::create($gridField, 'reset', false, 'reset', null)
                ->addExtraClass('ss-gridfield-button-close')
                ->setAttribute('title', _t('GridField.ResetFilter', "Reset"))
                ->setAttribute('id', 'action_reset_' . $gridField->getModelClass() . '_' . $columnField)
            )
        );

        $actions->addExtraClass('filter-buttons');
        $actions->addExtraClass('no-change-track');

        $forTemplate = new ArrayData(array(
            'Fields' => $fields
        ));


        return array(
            'header' => $forTemplate->renderWith('GridFieldFilterHeader_Row')
        );
    }

    public function getManipulatedData(GridField $gridField, SS_List $dataList)
    {
        $state = $gridField->State;

        if ($filter = $state->UserFormsGridField->toArray()) {
            if (isset($filter['filter']) && $filter['filter'] && isset($filter['value']) && $filter['value']) {
                $dataList = $dataList->where(sprintf("
					SELECT COUNT(*) FROM SubmittedFormField
					WHERE (
						ParentID = SubmittedForm.ID AND
						Name = '%s' AND
						Value LIKE '%s'
					) > 0",

                    Convert::raw2sql($filter['filter']),
                    Convert::raw2sql($filter['value'])
                ));
            }

            if (isset($filter['start']) && $filter['start']) {
                $dataList = $dataList->filter(array(
                    'Created:GreaterThan' => $filter['start']
                ));
            }

            if (isset($filter['end']) && $filter['end']) {
                $dataList = $dataList->filter(array(
                    'Created:LessThan' => $filter['end']
                ));
            }
        }

        return $dataList;
    }
}