clearnrelationhelper.php

См. документацию.

<?php
 
class CLearnRelationHelper
{
    public static function RenderForm ($oAccess, $LESSON_ID, $arOPathes)
    {
        global $APPLICATION;
 
        $curDir = $APPLICATION->GetCurDir();
        if (mb_substr($curDir, -1) !== '/')
            $curDir .= '/';
 
        ?>
        <script>
        function module_learning_js_admin_function_add_parent(lesson_id, name)
        {
            module_learning_js_admin_function_add_child_or_parent('LEARNING_LIST_OF_PARENTS', 'RELATION_PARENT[]', lesson_id, name);
            //alert ('called: module_learning_js_admin_function_add_parent(' + lesson_id + name + ')');
        }
        function module_learning_js_admin_function_add_child(lesson_id, name)
        {
            module_learning_js_admin_function_add_child_or_parent('LEARNING_LIST_OF_DESCENDANTS', 'RELATION_CHILD[]', lesson_id, name);
            //alert ('called: module_learning_js_admin_function_add_child(' + lesson_id + ')');
        }
        function module_learning_js_admin_function_add_child_or_parent(targetNode, fieldName, lesson_id, name)
        {
            var elemId = 'RELATION_PARENT_LID_' + lesson_id;
 
            var oDIV = BX.create('DIV', {'props': {'id': elemId}});
            var oA = BX.create(
                'SPAN', 
                {
                    'props':
                    {
                        'className': 'access-delete',
                    },
                    'style':
                    {
                        position: 'relative',
                        top: '3px',
                        marginRight: '1px'
                    },
                    'events':
                    {
                        'click': function() {
                            document.getElementById(elemId).parentNode.removeChild(document.getElementById(elemId));
                        }
                    }
                }
            );
            var oINPUT = BX.create(
                'INPUT', 
                {
                    'props': 
                    {
                        'type':  'hidden', 
                        'name':  fieldName,
                        'value': lesson_id
                    }
                }
            );
            var oSPAN = BX.create(
                'SPAN', 
                {
                    'text': '[' + lesson_id + '] ' + name
                }
            );
            var oSPAN_space = BX.create(
                'SPAN', 
                {
                    'text': ' '
                }
            );
 
            oDIV.appendChild(oA);
            oDIV.appendChild(oSPAN_space);
            oDIV.appendChild(oINPUT);
            oDIV.appendChild(oSPAN);
            BX(targetNode).appendChild(oDIV);
        }
        </script>
        <?php
 
        $arChilds  = array();
        $key = 0;
 
        $isChapter = $isCourse = false;
        $resChilds = CLearnLesson::GetListOfImmediateChilds($LESSON_ID);
        while ($arChild = $resChilds->Fetch())
        {
            $isChapter = true;      // this lesson is chapter, because there is descendants
            $arChilds['RELATION_CHILD_' . $key++] = array(
                'elemName' => 'RELATION_CHILD[]',
                'lessonId' => $arChild['LESSON_ID'],
                'Name'     => '[<a href="' . htmlspecialcharsbx($curDir) . 'learn_unilesson_edit.php?lang=' . LANG 
                    . '&LESSON_ID=' . ($arChild['LESSON_ID'] + 0) . '&LESSON_PATH=' . (int) $arChild['LESSON_ID'] . '" target=_blank>' 
                    . (int) $arChild['LESSON_ID'] 
                    . '</a>] ' 
                    . htmlspecialcharsbx($arChild['NAME'])
                );
        }
 
        // Is course?
        $isCourse = (CLearnLesson::GetLinkedCourse ($LESSON_ID) !== false);
 
        ?>
        <div style="padding:10px;">
            <div id="LEARNING_LIST_OF_PARENTS" style="padding:10px 0;">
                <h3><?php echo GetMessage('LEARNING_LIST_OF_PARENTS') . ':'; ?></h3>
            <?php
            $arParents = array();
            $resParents = CLearnLesson::GetListOfImmediateParents($LESSON_ID);
            while ($arParent = $resParents->Fetch())
            {
                $arParents['RELATION_PARENT_' . $key++] = array(
                    'elemName' => 'RELATION_PARENT[]',
                    'lessonId' => $arParent['LESSON_ID'],
                    'Name'     => '[<a href="' . htmlspecialcharsbx($curDir) . 'learn_unilesson_edit.php?lang=' . LANG 
                        . '&LESSON_ID=' . ($arParent['LESSON_ID'] + 0) . '&LESSON_PATH=' . (int) $arParent['LESSON_ID'] . '" target=_blank>' 
                        . (int) $arParent['LESSON_ID'] . '</a>] ' 
                        . htmlspecialcharsbx($arParent['NAME'])
                    );
            }
 
            foreach ($arParents as $elemId => $arElem)
            {
                ?>
                <div id="<?php echo $elemId; ?>">
                    <?php
                    if (
                        (
                            $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS)
                            || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS)
                        )
                        &&
                        (
                            $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS)
                            || $oAccess->IsLessonAccessible ($arElem['lessonId'], CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS)
                        )
                    )
                    {
                        ?>
                        <span
                            onclick="document.getElementById('<?php echo $elemId; ?>').parentNode.removeChild(document.getElementById('<?php echo $elemId; ?>'))" 
                            class="access-delete"
                            style="position:relative; top:3px; margin-right:1px;"
                            >&nbsp;</span>
                        <?php
                    }
                    ?>
                    <input type="hidden" name="<?php echo ($arElem['elemName']); ?>" value="<?php echo (int) $arElem['lessonId']; ?>">
                    <span style="font-style:italic;"><?php echo ($arElem['Name']); ?></span>
                </div>
                <?
            }
            ?>
            </div>
 
            <?php
            if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_TO_PARENTS)
                || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_LINK_TO_PARENTS)
            )
            {
                ?>
                <div style="padding:0px;">
                    <a href="javascript:void(0);" class="bx-action-href"
                        onclick="window.open('<?php echo addslashes(htmlspecialcharsbx($curDir)); ?>learn_unilesson_admin.php?lang=<?php echo LANGUAGE_ID; 
                            ?>&amp;search_retpoint=module_learning_js_admin_function_add_parent&amp;search_mode_type=parents_candidates', 
                            'module_learning_js_admin_window_select_lessons_for_relations', 
                            'scrollbars=yes,resizable=yes,width=960,height=500,top='+Math.floor((screen.height - 560)/2-14)+',left='+Math.floor((screen.width - 960)/2-5));" 
                        ><?php echo GetMessage('LEARNING_ADD_ELEMENT'); ?></a>
                </div>
                <?php
            }
            ?>
            <div style="height:25px;">&nbsp;</div>
            <div id="LEARNING_LIST_OF_DESCENDANTS" style="padding:10px 0;">
                <h3><?php echo GetMessage('LEARNING_LIST_OF_DESCENDANTS') . ':'; ?></h3>
            <?php
            foreach ($arChilds as $elemId => $arElem)
            {
                ?>
                <div id="<?php echo $elemId; ?>">
                    <?php
                    if (
                        (
                            $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS)
                            || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS)
                        )
                        &&
                        (
                            $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS)
                            || $oAccess->IsLessonAccessible ($arElem['lessonId'], CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS)
                        )
                    )
                    {
                        ?>
                        <a href="javascript:void(0);" 
                            onclick="document.getElementById('<?php echo $elemId; ?>').parentNode.removeChild(document.getElementById('<?php echo $elemId; ?>'))" 
                            class="access-delete"></a>
                        <?php
                    }
                    ?>
                    <input type="hidden" name="<?php echo ($arElem['elemName']); ?>" value="<?php echo (int) $arElem['lessonId']; ?>">
                    <span style="font-style:italic;"><?php echo ($arElem['Name']); ?></span>
                </div>
                <?
            }
            ?>
            </div>
            <?php
            if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_DESCENDANTS)
                || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_LINK_DESCENDANTS)
            )
            {
                ?>
                <div style="padding:0px;">
                    <a href="javascript:void(0);" class="bx-action-href"
                        onclick="window.open('<?php echo addslashes(htmlspecialcharsbx($curDir)); ?>learn_unilesson_admin.php?lang=<?php echo LANGUAGE_ID; 
                            ?>&amp;search_retpoint=module_learning_js_admin_function_add_child', 
                            'module_learning_js_admin_window_select_lessons_for_relations', 
                            'scrollbars=yes,resizable=yes,width=960,height=500,top='+Math.floor((screen.height - 560)/2-14)+',left='+Math.floor((screen.width - 960)/2-5));" 
                        ><?php echo GetMessage('LEARNING_ADD_ELEMENT'); ?></a>
                </div>
                <?php
            }
            ?>
            <div style="height:25px;">&nbsp;</div>
            <hr>
            <div id="LEARNING_LIST_OF_ALL_PARENT_PATHES" style="padding:10px 0;">
                <?php
 
                $cntParentPathes = count($arOPathes);
 
                $langPhraseBase = 'LEARNING_LIST_OF_ALL_PARENT_PATHES_FOR_';
 
                $lessonType = 'LESSON';
                if ($isCourse)
                    $lessonType = 'COURSE';
                elseif ($isChapter)
                    $lessonType = 'CHAPTER';
 
                $isEmpty = '';
                if ($cntParentPathes === 0)
                    $isEmpty = '_IS_EMPTY';
 
                echo '<h3>' . GetMessage($langPhraseBase . $lessonType . $isEmpty) . '</h3>';
 
                if ($cntParentPathes > 0)
                {
                    $pattern = '[<a href="' . addslashes(htmlspecialcharsbx($curDir)) . 'learn_unilesson_edit.php?lang=' . LANG 
                        . '&LESSON_ID=#LESSON_ID#&LESSON_PATH=#LESSON_ID#" target="_blank">#LESSON_ID#</a>] #NAME#';
 
                    foreach ($arOPathes as $oPath)
                    {
                        echo $oPath->GetPathAsHumanReadableString(' / ', $pattern);
 
                        if ($oPath->Count() >= 1)
                        {
                            if (CLearnLesson::IsPublishProhibited ($LESSON_ID, $oPath->GetTop()))
                                echo ' <span style="color:grey;">(' . GetMessage('LEARNING_LESSON_IS_PUBLISH_PROHIBITED') . ')</span>';
                        }
 
                        echo '<br>';
                    }
                }
                ?>
            </div>
        </div>
        <?php
    }
 
 
    public static function ProccessPOST($oAccess, $LESSON_ID, $sort = false)
    {
        $isAccessUseCache = true;
 
        if ($sort === false)
            $sort = 500;
 
        // Remove/add relations from/to parent
        if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache)
            || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache)
            || $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache)
            || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache)
        )
        {
            $arCurParentsIds = array();
            $resParents = CLearnLesson::GetListOfImmediateParents($LESSON_ID);
            while ($arParent = $resParents->Fetch())
                $arCurParentsIds[] = (int) $arParent['LESSON_ID'];
 
            $arDestParentsIds = array();
 
            if (isset($_POST['RELATION_PARENT']) && is_array($_POST['RELATION_PARENT']))
                foreach ($_POST['RELATION_PARENT'] as $key => $relatedLessonId)
                    $arDestParentsIds[] = (int) $relatedLessonId;
 
            // remove relations
            if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache)
                || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache)
            )
            {
                $arRemoveIds = array_diff ($arCurParentsIds, $arDestParentsIds);
                foreach ($arRemoveIds as $relatedLessonId)
                {
                    if ( $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache)
                        || $oAccess->IsLessonAccessible ($relatedLessonId, CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache) 
                    )
                    {
                        CLearnLesson::RelationRemove ($relatedLessonId, $LESSON_ID);
                    }
                }
            }
 
            // add relations
            if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache)
                || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache)
            )
            {
                $arAddIds = array_diff ($arDestParentsIds, $arCurParentsIds);
                foreach ($arAddIds as $relatedLessonId)
                {
                    if ( $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache)
                        || $oAccess->IsLessonAccessible ($relatedLessonId, CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache) 
                    )
                    {
                        CLearnLesson::RelationAdd ($relatedLessonId, $LESSON_ID, array('SORT' => $sort));
                    }
                }
            }
        }
 
        // Remove/add relations from/to childs
        if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache)
            || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache)
            || $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache)
            || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache)
        )
        {
            $arCurChildsIds = array();
            $resChilds = CLearnLesson::GetListOfImmediateChilds($LESSON_ID);
            while ($arChild = $resChilds->Fetch())
                $arCurChildsIds[] = (int) $arChild['LESSON_ID'];
 
            $arDestChildsIds  = array();
 
            if (isset($_POST['RELATION_CHILD']) && is_array($_POST['RELATION_CHILD']))
                foreach ($_POST['RELATION_CHILD'] as $key => $relatedLessonId)
                    $arDestChildsIds[] = (int) $relatedLessonId;
 
            // remove relations
            if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache)
                || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_UNLINK_DESCENDANTS, $isAccessUseCache)
            )
            {
                $arRemoveIds = array_diff ($arCurChildsIds, $arDestChildsIds);
                foreach ($arRemoveIds as $relatedLessonId)
                {
                    if ( $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache)
                        || $oAccess->IsLessonAccessible ($relatedLessonId, CLearnAccess::OP_LESSON_UNLINK_FROM_PARENTS, $isAccessUseCache) 
                    )
                    {
                        CLearnLesson::RelationRemove ($LESSON_ID, $relatedLessonId);
                    }
                }
            }
 
            // add relations
            if ($oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache)
                || $oAccess->IsLessonAccessible ($LESSON_ID, CLearnAccess::OP_LESSON_LINK_DESCENDANTS, $isAccessUseCache)
            )
            {
                $arAddIds = array_diff ($arDestChildsIds, $arCurChildsIds);
                foreach ($arAddIds as $relatedLessonId)
                {
                    if ( $oAccess->IsBaseAccess(CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache)
                        || $oAccess->IsLessonAccessible ($relatedLessonId, CLearnAccess::OP_LESSON_LINK_TO_PARENTS, $isAccessUseCache) 
                    )
                    {
                        CLearnLesson::RelationAdd ($LESSON_ID, $relatedLessonId, array('SORT' => $sort));
                    }
                }
            }
        }
    }
}