#4918 / Drag'n'Drop reorder elements

Manual.rst: usage of drag and drop.

extension/Documentation/Manual.rst

@@ -6225,49 +6225,75 @@ Drag and drop
 Sort/order elements
 ^^^^^^^^^^^^^^^^
 
-QFQ supports sort/order elements via HTML5 drag and drop together with QFQ API/DB calls.
-
-Display the list of elements via a regular QFQ content record. Output: ::
-
-        <div class="qfq-dnd-sort" data-dnd-api="typo3conf/ext/qfq/qfq/api/dragAndDrop.php?s=badcaffee1234">
-                <div class="anyClass" id="<uniq1>" data-dnd-id="55">
-                    Numbero Uno
-                </div>
-                <div class="anyClass" id="<uniq2>" data-dnd-id="18">
-                    Numbero Deux
-                </div>
-                <div class="anyClass" id="<uniq3>" data-dnd-id="27">
-                    Numbero Tre
-                </div>
-                <div class="anyClass" id="<uniq4>" data-dnd-id="534">
-                    Numbero Quattro
-                </div>
-                <div class="anyClass" id="<uniq5>" data-dnd-id="67">
-                    Numbero Cinge
-                </div>
-                <div class="anyClass" id="<uniq6>" data-dnd-id="101">
-                    Numbero Siesta
-                </div>
-            </div>
-
-
-An example QFQ report which generates those HTML: ::
+Manually sorting and ordering of elements via HTML5 drag and drop is supported via QFQ JS/API/DB. Any sortable element
+should be represented by a database record with an order column.
+
+* Display: the records will be displayed via QFQ/report.
+* Update: updates of the order column are managed by a specific 'drag and drop' definition Form.
+
+
+Part 1: Display list
+''''''''''''''''''''
+
+Display the list of elements via a regular QFQ content record. All 'drag and drop' elements have to be nested by an HTML
+element:
+
+* With `class="qfq-dnd-sort"`.
+* With an automatically SIP protected form name: `{{'<form name>' AS _data-dnd-api}}`
+* Only direct children of such element can be dragged.
+* Every children needs a unique identifier `data-dnd-id="<unique>"`. Typically this is the corresponding record id.
+* The record needs a dedicated order column, which will be updated through API calls in time.
+
+The final HTML output: ::
+
+    <div class="qfq-dnd-sort" data-dnd-api="typo3conf/ext/qfq/qfq/api/dragAndDrop.php?s=badcaffee1234">
+        <div class="anyClass" id="<uniq1>" data-dnd-id="55">
+            Numbero Uno
+        </div>
+        <div class="anyClass" id="<uniq2>" data-dnd-id="18">
+            Numbero Deux
+        </div>
+        <div class="anyClass" id="<uniq3>" data-dnd-id="27">
+            Numbero Tre
+        </div>
+    </div>
+
+
+A typical QFQ report which generates those HTML: ::
 
     10 {
-      sql = SELECT '<div class="anyClass" id="sort-', n.id,'" data-dnd-api="', n.id,'">' , n.id, ' / ', n.note, ' / ', n.ord, '</div>'
+      sql = SELECT '<div id="anytag-', n.id,'" data-dnd-id="', n.id,'">' , n.note, '</div>'
                    FROM Note AS n
-                   WHERE n.grId=4
                    ORDER BY n.ord
 
-      head = <div class-"qfq-dnd" data-dnd-api="typo3conf/ext/qfq/qfq/api/dragAndDrop.php" data-dnd-key="{{'U:form=draganddrop|s|r:8' AS _link}}">
+      head = <div class="qfq-dnd-sort" {{'<form name>' AS _data-dnd-api}}>
       tail = </div>
     }
 
 
+Part 2: Update database
+'''''''''''''''''''''''
 
+A dedicated `Form`, without any `FormElements`, is needed to define the database update definition.
 
-Examples
---------
+Fields:
+
+* Name: <custom formname>
+* Table: <table with the element records>
+* Parameter:
+
++=====================================+================================================================================+
+| orderInterval = <number>            | Optional. By default '10'. Might be any number > 0.                            |
++-------------------------------------+--------------------------------------------------------------------------------+
+| orderColumn = <column name>         | Optional. By default 'ord'.                                                    |
++-------------------------------------+--------------------------------------------------------------------------------+
+| dragAndDropOrderSql =                                   | Query which selects the same records as the report in the  |
+| {{!SELECT  n.id,  n.ord FROM Note AS n ORDER BY n.ord}} | same order! Inconsistencies results in sort differences    |
++---------------------------------------------------------+------------------------------------------------------------+
+
+
+Report Examples
+---------------
 
 The following section gives some examples of typical reports
 

extension/qfq/qfq/AbstractBuildForm.php

@@ -86,6 +86,8 @@ abstract class AbstractBuildForm {
      * @param array $feSpecAction
      * @param array $feSpecNative
      * @param array $db
+     * @throws CodeException
+     * @throws UserFormException
      */
     public function __construct(array $formSpec, array $feSpecAction, array $feSpecNative, array $db = null) {
         $this->formSpec = $formSpec;
@@ -172,6 +174,8 @@ abstract class AbstractBuildForm {
      * @param array $latestFeSpecNative
      * @return array|string $mode=LOAD_FORM: The whole form as HTML, $mode=FORM_UPDATE: array of all
      *                        formElement.dynamicUpdate-yes  values/states
+     * @throws CodeException
+     * @throws DbException
      * @throws UserFormException
      */
     public function process($mode, $htmlElementNameIdZero = false, $latestFeSpecNative = array()) {
@@ -247,6 +251,8 @@ abstract class AbstractBuildForm {
      *
      * @param string $mode
      * @return string
+     * @throws CodeException
+     * @throws UserFormException
      */
     public function head($mode = FORM_LOAD) {
         $html = '';
@@ -276,6 +282,8 @@ abstract class AbstractBuildForm {
      *
      * @return string String: <a href="?pageId&sip=....">Edit</a> <small>[sip:..., r:..., urlparam:...,
      *                ...]</small>
+     * @throws CodeException
+     * @throws UserFormException
      */
     public function createFormEditorUrl($form, $recordId, array $param = array()) {
 
@@ -338,6 +346,8 @@ abstract class AbstractBuildForm {
      * Build MD5 from the current record. Return HTML Input element.
      *
      * @return string
+     * @throws CodeException
+     * @throws UserFormException
      */
     public function buildInputRecordHashMd5() {
 
@@ -357,6 +367,9 @@ abstract class AbstractBuildForm {
      * @param $recordId
      *
      * @return string
+     * @throws CodeException
+     * @throws DbException
+     * @throws UserFormException
      */
     public function buildRecordHashMd5($tableName, $recordId) {
         $record = array();
@@ -372,6 +385,8 @@ abstract class AbstractBuildForm {
      * Create HTML Input vars to detect bot automatic filling of forms.
      *
      * @return string
+     * @throws CodeException
+     * @throws UserFormException
      */
     public function getHoneypotVars() {
         $html = '';
@@ -442,6 +457,9 @@ abstract class AbstractBuildForm {
      * See: https://www.w3.org/wiki/HTML/Elements/form#HTML_Attributes
      *
      * @return string
+     * @throws CodeException
+     * @throws DbException
+     * @throws UserFormException
      */
     public function getEncType() {
 
@@ -457,6 +475,10 @@ abstract class AbstractBuildForm {
      * @param array|string $value
      *
      * @return array|string
+     * @throws CodeException
+     * @throws DbException
+     * @throws UserFormException
+     * @throws UserReportException
      */
     private function processReportSyntax($value) {
 
@@ -502,6 +524,10 @@ abstract class AbstractBuildForm {
      * @param string $mode FORM_LOAD | FORM_UPDATE | FORM_SAVE
      *
      * @return string
+     * @throws CodeException
+     * @throws DbException
+     * @throws UserFormException
+     * @throws UserReportException
      */
     public function elements($recordId, $filter = FORM_ELEMENTS_NATIVE, $feIdContainer = 0, array &$json,
                              $modeCollectFe = FLAG_DYNAMIC_UPDATE, $htmlElementNameIdZero = false,
@@ -672,6 +698,10 @@ abstract class AbstractBuildForm {
      * @param array $formElement
      *
      * @return array
+     * @throws CodeException
+     * @throws DbException
+     * @throws UserFormException
+     * @throws UserReportException
      */
     private function prepareFillStoreFireLdap(array $formElement) {
 
@@ -767,6 +797,8 @@ abstract class AbstractBuildForm {
      * save/update.
      *
      * @return string
+     * @throws CodeException
+     * @throws UserFormException
      */
     private function prepareT3VarsForSave() {
 
@@ -802,6 +834,8 @@ abstract class AbstractBuildForm {
      * Get all elements from STORE_ADDITIONAL_FORM_ELEMENTS and return them as a string.
      *
      * @return string
+     * @throws CodeException
+     * @throws UserFormException
      */
     private function buildAdditionalFormElements() {
 
@@ -816,6 +850,8 @@ abstract class AbstractBuildForm {
      * @param array $json
      *
      * @return string  <input type='hidden' name='s' value='<sip>'>
+     * @throws CodeException
+     * @throws UserFormException
      */
     public function buildHiddenSip(array &$json) {
 
@@ -921,6 +957,7 @@ abstract class AbstractBuildForm {
      * @param array $feMode
      *
      * @return array
+     * @throws UserFormException
      */
     private function getJsonFeMode($feMode) {
 
@@ -970,6 +1007,7 @@ abstract class AbstractBuildForm {
      * @param string $addClass
      *
      * @return string
+     * @throws CodeException
      */
     public function buildLabel($htmlFormElementName, $label, $addClass = '') {
         $attributes = Support::doAttribute('for', $htmlFormElementName);
@@ -985,6 +1023,8 @@ abstract class AbstractBuildForm {
      *
      * @param $toolTipNew
      * @return string
+     * @throws CodeException
+     * @throws UserFormException
      */
     public function deriveNewRecordUrlFromExistingSip(&$toolTipNew) {
 
@@ -1048,6 +1088,8 @@ abstract class AbstractBuildForm {
      * @param string $mode FORM_LOAD | FORM_UPDATE | FORM_SAVE
      *
      * @return string complete rendered HTML input element.
+     * @throws CodeException
+     * @throws UserFormException
      */
     public function buildInput(array $formElement, $htmlFormElementName, $value, array &$json, $mode = FORM_LOAD) {
         $textarea = '';
@@ -1192,6 +1234,7 @@ abstract class AbstractBuildForm {
      * @param array $formElement
      *
      * @return string
+     * @throws CodeException
      * @throws UserFormException
      */
     private function typeAheadBuildParam(array &$formElement) {
@@ -1297,6 +1340,7 @@ abstract class AbstractBuildForm {
      * @param bool $flagOmitEmpty
      *
      * @return string
+     * @throws CodeException
      */
     private function getAttributeList(array $formElement, array $attributeList, $flagOmitEmpty = true) {
         $attribute = '';
@@ -1315,6 +1359,7 @@ abstract class AbstractBuildForm {
      *
      * @param bool $cssDisable
      * @return string
+     * @throws CodeException
      * @throws UserFormException
      */
     private function getAttributeFeMode($feMode, $cssDisable = true) {
@@ -1371,6 +1416,7 @@ abstract class AbstractBuildForm {
      * @param string $mode FORM_LOAD | FORM_UPDATE | FORM_SAVE*
      *
      * @return string
+     * @throws CodeException
      * @throws UserFormException
      */
     public function buildCheckbox(array $formElement, $htmlFormElementName, $value, array &$json, $mode = FORM_LOAD) {
@@ -1426,6 +1472,7 @@ abstract class AbstractBuildForm {
      * @param array $itemKey
      * @param array $itemValue
      *
+     * @throws CodeException
      * @throws UserFormException
      */
     public function getKeyValueListFromSqlEnumSpec(array $formElement, array &$itemKey, array &$itemValue) {

extension/qfq/qfq/BuildFormBootstrap.php

@@ -383,7 +383,9 @@ class BuildFormBootstrap extends AbstractBuildForm {
      * @param array $json
      * @return string
      * @throws CodeException
+     * @throws DbException
      * @throws UserFormException
+     * @throws UserReportException
      */
     private function buildPillNavigation($mode = FORM_LOAD, array $pillArray, array &$json) {
         $pillButton = '';

extension/qfq/qfq/Constants.php

@@ -547,6 +547,7 @@ const SYSTEM_DOWNLOAD_POPUP = 'hasDownloadPopup'; // Marker which is set to 'tru
 const DOWNLOAD_POPUP_REQUEST = 'true';
 const DOWNLOAD_POPUP_REPLACE_TEXT = '#downloadPopupReplaceText#';
 const DOWNLOAD_POPUP_REPLACE_TITLE = '#downloadPopupReplaceTitle#';
+const SYSTEM_DRAG_AND_DROP_JS = 'hasDragAndDropJS';
 
 const SYSTEM_PARAMETER_LANGUAGE_FIELD_NAME = 'parameterLanguageFieldName';
 const CSS_REQUIRED = 'required-field';
@@ -648,6 +649,7 @@ const MODE_LDAP_MULTI = 'ldapMulti';
 // api/save.php, api/delete.php, api/load.php
 const API_DELETE_PHP = 'delete.php';
 const API_DOWNLOAD_PHP = 'download.php';
+const API_DRAG_AND_DROP_PHP = 'dragAndDrop.php';
 
 const API_STATUS = 'status';
 const API_MESSAGE = 'message';
@@ -1437,3 +1439,4 @@ const DND_HOVER_POSITION = 'hoverPosition';
 const DND_COLUMN_ID = 'id';
 const DND_COLUMN_ORD = 'ord';
 const DND_COLUMN_ORD_NEW = 'ordNew';
+const DND_DATA_DND_API = 'data-dnd-api';
\ No newline at end of file

extension/qfq/qfq/Evaluate.php

@@ -197,6 +197,59 @@ class Evaluate {
         return $result;
     }
 
+    /**
+     * @param $arrToken
+     * @param $dbIndex
+     * @param $foundInStore
+     * @return string
+     * @throws CodeException
+     * @throws UserFormException
+     * @throws UserReportException
+     */
+    private function inlineLink($arrToken, $dbIndex, &$foundInStore){
+
+        $token = OnString::trimQuote(trim(implode(' ', $arrToken)));
+
+        if ($this->link === null) {
+            $this->link = new Link($this->store->getSipInstance(), $dbIndex);
+        }
+
+        $foundInStore = TOKEN_FOUND_AS_COLUMN;
+
+        return $this->link->renderLink($token);
+    }
+
+    /**
+     * @param $arrToken
+     * @param $dbIndex
+     * @param $foundInStore
+     * @return string
+     * @throws CodeException
+     * @throws UserFormException
+     * @throws UserReportException
+     */
+    private function inlineDataDndApi($arrToken, $dbIndex, &$foundInStore){
+
+        $token = OnString::trimQuote(trim(implode(' ', $arrToken)));
+        if(empty($token)){
+            throw new UserReportException('Missing form name for "data-dnd-api"', ERROR_MISSING_FORM);
+        }
+
+        if ($this->link === null) {
+            $this->link = new Link($this->store->getSipInstance(), $dbIndex);
+        }
+
+        $foundInStore = TOKEN_FOUND_AS_COLUMN;
+
+        $s = $this->link->renderLink('U:form=' . $token . '|s|r:8');
+
+        // Flag to add DND JS code later on.
+        $this->store->setVar(SYSTEM_DRAG_AND_DROP_JS, 'true', STORE_SYSTEM);
+
+        // data-dnd-api="typo3conf/ext/qfq/qfq/api/dragAndDrop.php?s={{'U:form=<formnname>|s|r:8' AS _link}}"
+        return DND_DATA_DND_API . '="' . API_DIR . '/' . API_DRAG_AND_DROP_PHP . '?s=' . $s . '"';
+    }
+
     /**
      * Tries to substitute $token.
      * Token might be:
@@ -244,7 +297,7 @@ class Evaluate {
             $sqlMode = ROW_REGULAR;
         }
 
-        // Extract token: check if this is a 'SQL Statement', 'link'
+        // Extract token: check if this is a 'variable', 'SQL Statement', 'link', 'data-dnd-api'
         $arrToken = explode(' ', $token);
 
         // Variable Type 'SQL Statement'
@@ -254,28 +307,22 @@ class Evaluate {
             return $this->dbArray[$dbIndex]->sql($token, $sqlMode);
         }
 
-        // Variable Type '... AS LINK'
+        // Variable Type '... AS _link', '... as data-dnd-api'
         $countToken = count($arrToken);
         if ($countToken > 2 && strcasecmp($arrToken[$countToken - 2], 'as') == 0) {
 
             $type = OnString::stripFirstCharIf('_', $arrToken[$countToken - 1]);
 
-            if (strcasecmp($type, 'link') == 0) {
+            array_pop($arrToken); // remove 'link' | 'data-dnd-api'
+            array_pop($arrToken); // remove 'as'
 
-                array_pop($arrToken); // remove 'link'
-                array_pop($arrToken); // remove 'as'
-                $token = trim(implode($arrToken));
-
-//                $str = OnString::trimQuote(substr($token, 0, strlen($token) - 8));  // strlen('_as_link')=8
-                $str = OnString::trimQuote($token);
-
-                if ($this->link === null) {
-                    $this->link = new Link($this->store->getSipInstance(), $dbIndex);
-                }
+            if (strcasecmp($type, COLUMN_LINK ) == 0) {
+                return($this->inlineLink($arrToken, $dbIndex,$foundInStore));
+            }
 
-                $foundInStore = TOKEN_FOUND_AS_COLUMN;
+            if($type == DND_DATA_DND_API){
+                return($this->inlineDataDndApi($arrToken, $dbIndex,$foundInStore));
 
-                return $this->link->renderLink($str);
             }
         }
 

extension/qfq/qfq/QuickFormQuery.php

@@ -62,8 +62,7 @@ require_once(__DIR__ . '/form/DragAndDrop.php');
  * Class Qfq
  * @package qfq
  */
-class QuickFormQuery
-{
+class QuickFormQuery {
 
     /**
      * @var \qfq\Store instantiated class
@@ -128,8 +127,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    public function __construct(array $t3data = array(), $phpUnit = false)
-    {
+    public function __construct(array $t3data = array(), $phpUnit = false) {
 
         $this->phpUnit = $phpUnit;
 
@@ -198,8 +196,7 @@ class QuickFormQuery
      * @throws CodeException
      * @throws UserFormException
      */
-    public function getForwardMode()
-    {
+    public function getForwardMode() {
 
         $forwardPage = $this->formSpec[F_FORWARD_PAGE];
 
@@ -227,8 +224,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    public function process()
-    {
+    public function process() {
         $html = '';
 
         if ($this->store->getVar(TYPO3_DEBUG_SHOW_BODY_TEXT, STORE_TYPO3) === 'yes') {
@@ -244,6 +240,11 @@ class QuickFormQuery
             $html .= $this->getModalCode();
         }
 
+        // Only needed if there are 'drag and drop' elements.
+        if ($this->store->getVar(SYSTEM_DRAG_AND_DROP_JS, STORE_SYSTEM) == 'true') {
+            $html .= $this->getDragAndDropCode();
+        }
+
         $class = $this->store->getVar(SYSTEM_CSS_CLASS_QFQ_CONTAINER, STORE_SYSTEM);
         if ($class) {
             $html = Support::wrapTag("<div class='$class'>", $html);
@@ -255,8 +256,7 @@ class QuickFormQuery
     /**
      * Determine the name of the language parameter field, which has to be taken to fill language specific defintions.
      */
-    private function setParameterLanguageFieldName()
-    {
+    private function setParameterLanguageFieldName() {
 
         $typo3PageLanguage = $this->store->getVar(TYPO3_PAGE_LANGUAGE, STORE_TYPO3);
         if (empty($typo3PageLanguage)) {
@@ -290,8 +290,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    private function doForm($formMode)
-    {
+    private function doForm($formMode) {
         $data = '';
         $foundInStore = '';
 
@@ -536,8 +535,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    private function setForwardModePage()
-    {
+    private function setForwardModePage() {
 
         if ('url' != substr($this->formSpec[F_FORWARD_MODE], 0, 3)) {
             return false;
@@ -595,8 +593,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    private function pasteClipboard($formId, FormAction $formAction)
-    {
+    private function pasteClipboard($formId, FormAction $formAction) {
 
         if (!$this->isPasteRecord()) {
             return;
@@ -621,8 +618,7 @@ class QuickFormQuery
     /**
      * @return bool  true if there is at least one paste record, else false.
      */
-    private function isPasteRecord()
-    {
+    private function isPasteRecord() {
 
         foreach ($this->feSpecAction as $formElement) {
             if ($formElement[FE_TYPE] == FE_TYPE_PASTE) {
@@ -645,8 +641,7 @@ class QuickFormQuery
      * @throws CodeException
      * @throws UserFormException
      */
-    private function buildNSetReloadUrl(array $formSpec, $recordId)
-    {
+    private function buildNSetReloadUrl(array $formSpec, $recordId) {
 
         $formSpec[F_FORWARD_MODE] = API_ANSWER_REDIRECT_URL_SKIP_HISTORY;
 
@@ -684,8 +679,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    private function loadFormSpecification($mode, $recordId, &$foundInStore = '')
-    {
+    private function loadFormSpecification($mode, $recordId, &$foundInStore = '') {
 
         // formName
         if (false === ($formName = $this->getFormName($mode, $foundInStore))) {
@@ -826,8 +820,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    public function getNativeFormElements($sql, array $param, $formSpec)
-    {
+    public function getNativeFormElements($sql, array $param, $formSpec) {
 
         $feSpecNative = $this->dbArray[$this->dbIndexQfq]->sql($sql, ROW_REGULAR, $param);
 
@@ -867,8 +860,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    private function explodeTemplateGroupElements(array $elements)
-    {
+    private function explodeTemplateGroupElements(array $elements) {
         $new = array();
 
         // No FormElements or no NAME_TG_COPIES column: nothing to do, return.
@@ -924,8 +916,7 @@ class QuickFormQuery
      * @throws UserFormException
      * @throws UserReportException
      */
-    public function getFormName($mode, &$foundInStore = '')
-    {
+    public function getFormName($mode, &$foundInStore = '') {
         $dummy = array();
 
         switch ($mode) {
@@ -964,8 +955,7 @@ class QuickFormQuery
      * @throws CodeException
      * @throws UserFormException
      */
-    private function modeCleanFormConfig($mode, array $form)
-    {
+    private function modeCleanFormConfig($mode, array $form) {
 
         switch ($mode) {
             case FORM_DELETE:
@@ -996,8 +986,7 @@ class QuickFormQuery
      * @throws CodeException
      * @throws UserFormException
      */
-    private function syncSystemFormConfig(array $formSpec)
-    {
+    private function syncSystemFormConfig(array $formSpec) {
 
         $keys = [F_BS_COLUMNS,
             F_BS_LABEL_COLUMNS,
@@ -1067,8 +1056,7 @@ class QuickFormQuery
      * @throws CodeException
      * @throws UserFormException
      */
-    private function initForm(array $formSpec)
-    {
+    private function initForm(array $formSpec) {
 
         Support::setIfNotSet($formSpec, F_EXTRA_DELETE_FORM, '');
         Support::setIfNotSet($formSpec, F_SUBMIT_BUTTON_TEXT, '');
@@ -1109,8 +1097,7 @@ class QuickFormQuery
      * @throws \qfq\UserFormException
      * @internal param $foundInStore
      */
-    private function validateForm($formNameFoundInStore, $formMode)