Fix duplicated lists.

Thanks to xet7 !

Fixes #5952

server/methods/fixDuplicateLists.js

@@ -0,0 +1,234 @@
+import { Meteor } from 'meteor/meteor';
+import { check } from 'meteor/check';
+import Boards from '/models/boards';
+import Lists from '/models/lists';
+import Swimlanes from '/models/swimlanes';
+import Cards from '/models/cards';
+
+/**
+ * Fix duplicate lists and swimlanes created by WeKan 8.10
+ * This method identifies and removes duplicate lists while preserving cards
+ */
+Meteor.methods({
+  'fixDuplicateLists.fixAllBoards'() {
+    if (!this.userId) {
+      throw new Meteor.Error('not-authorized');
+    }
+
+    console.log('Starting duplicate lists fix for all boards...');
+    
+    const allBoards = Boards.find({}).fetch();
+    let totalFixed = 0;
+    let totalBoardsProcessed = 0;
+
+    for (const board of allBoards) {
+      try {
+        const result = this.fixDuplicateListsForBoard(board._id);
+        totalFixed += result.fixed;
+        totalBoardsProcessed++;
+        
+        if (result.fixed > 0) {
+          console.log(`Fixed ${result.fixed} duplicate lists in board "${board.title}" (${board._id})`);
+        }
+      } catch (error) {
+        console.error(`Error fixing board ${board._id}:`, error);
+      }
+    }
+
+    console.log(`Duplicate lists fix completed. Processed ${totalBoardsProcessed} boards, fixed ${totalFixed} duplicate lists.`);
+    
+    return {
+      message: `Fixed ${totalFixed} duplicate lists across ${totalBoardsProcessed} boards`,
+      totalFixed,
+      totalBoardsProcessed
+    };
+  },
+
+  'fixDuplicateLists.fixBoard'(boardId) {
+    check(boardId, String);
+    
+    if (!this.userId) {
+      throw new Meteor.Error('not-authorized');
+    }
+
+    return this.fixDuplicateListsForBoard(boardId);
+  },
+
+  fixDuplicateListsForBoard(boardId) {
+    console.log(`Fixing duplicate lists for board ${boardId}...`);
+    
+    // First, fix duplicate swimlanes
+    const swimlaneResult = this.fixDuplicateSwimlanes(boardId);
+    
+    // Then, fix duplicate lists
+    const listResult = this.fixDuplicateLists(boardId);
+    
+    return {
+      boardId,
+      fixedSwimlanes: swimlaneResult.fixed,
+      fixedLists: listResult.fixed,
+      fixed: swimlaneResult.fixed + listResult.fixed
+    };
+  },
+
+  fixDuplicateSwimlanes(boardId) {
+    const swimlanes = Swimlanes.find({ boardId }).fetch();
+    const swimlaneGroups = {};
+    let fixed = 0;
+
+    // Group swimlanes by title
+    swimlanes.forEach(swimlane => {
+      const key = swimlane.title || 'Default';
+      if (!swimlaneGroups[key]) {
+        swimlaneGroups[key] = [];
+      }
+      swimlaneGroups[key].push(swimlane);
+    });
+
+    // For each group with duplicates, keep the oldest and remove the rest
+    Object.keys(swimlaneGroups).forEach(title => {
+      const group = swimlaneGroups[title];
+      if (group.length > 1) {
+        // Sort by creation date, keep the oldest
+        group.sort((a, b) => new Date(a.createdAt || 0) - new Date(b.createdAt || 0));
+        const keepSwimlane = group[0];
+        const removeSwimlanes = group.slice(1);
+
+        console.log(`Found ${group.length} duplicate swimlanes with title "${title}", keeping oldest (${keepSwimlane._id})`);
+
+        // Move all lists from duplicate swimlanes to the kept swimlane
+        removeSwimlanes.forEach(swimlane => {
+          const lists = Lists.find({ swimlaneId: swimlane._id }).fetch();
+          lists.forEach(list => {
+            // Check if a list with the same title already exists in the kept swimlane
+            const existingList = Lists.findOne({
+              boardId,
+              swimlaneId: keepSwimlane._id,
+              title: list.title
+            });
+
+            if (existingList) {
+              // Move cards to existing list
+              Cards.update(
+                { listId: list._id },
+                { $set: { listId: existingList._id } },
+                { multi: true }
+              );
+              // Remove duplicate list
+              Lists.remove(list._id);
+              console.log(`Moved cards from duplicate list "${list.title}" to existing list in kept swimlane`);
+            } else {
+              // Move list to kept swimlane
+              Lists.update(list._id, { $set: { swimlaneId: keepSwimlane._id } });
+              console.log(`Moved list "${list.title}" to kept swimlane`);
+            }
+          });
+
+          // Remove duplicate swimlane
+          Swimlanes.remove(swimlane._id);
+          fixed++;
+        });
+      }
+    });
+
+    return { fixed };
+  },
+
+  fixDuplicateLists(boardId) {
+    const lists = Lists.find({ boardId }).fetch();
+    const listGroups = {};
+    let fixed = 0;
+
+    // Group lists by title and swimlaneId
+    lists.forEach(list => {
+      const key = `${list.swimlaneId || 'null'}-${list.title}`;
+      if (!listGroups[key]) {
+        listGroups[key] = [];
+      }
+      listGroups[key].push(list);
+    });
+
+    // For each group with duplicates, keep the oldest and remove the rest
+    Object.keys(listGroups).forEach(key => {
+      const group = listGroups[key];
+      if (group.length > 1) {
+        // Sort by creation date, keep the oldest
+        group.sort((a, b) => new Date(a.createdAt || 0) - new Date(b.createdAt || 0));
+        const keepList = group[0];
+        const removeLists = group.slice(1);
+
+        console.log(`Found ${group.length} duplicate lists with title "${keepList.title}" in swimlane ${keepList.swimlaneId}, keeping oldest (${keepList._id})`);
+
+        // Move all cards from duplicate lists to the kept list
+        removeLists.forEach(list => {
+          Cards.update(
+            { listId: list._id },
+            { $set: { listId: keepList._id } },
+            { multi: true }
+          );
+          
+          // Remove duplicate list
+          Lists.remove(list._id);
+          fixed++;
+          console.log(`Moved cards from duplicate list "${list.title}" to kept list`);
+        });
+      }
+    });
+
+    return { fixed };
+  },
+
+  'fixDuplicateLists.getReport'() {
+    if (!this.userId) {
+      throw new Meteor.Error('not-authorized');
+    }
+
+    const allBoards = Boards.find({}).fetch();
+    const report = [];
+
+    for (const board of allBoards) {
+      const swimlanes = Swimlanes.find({ boardId: board._id }).fetch();
+      const lists = Lists.find({ boardId: board._id }).fetch();
+      
+      // Check for duplicate swimlanes
+      const swimlaneGroups = {};
+      swimlanes.forEach(swimlane => {
+        const key = swimlane.title || 'Default';
+        if (!swimlaneGroups[key]) {
+          swimlaneGroups[key] = [];
+        }
+        swimlaneGroups[key].push(swimlane);
+      });
+
+      // Check for duplicate lists
+      const listGroups = {};
+      lists.forEach(list => {
+        const key = `${list.swimlaneId || 'null'}-${list.title}`;
+        if (!listGroups[key]) {
+          listGroups[key] = [];
+        }
+        listGroups[key].push(list);
+      });
+
+      const duplicateSwimlanes = Object.values(swimlaneGroups).filter(group => group.length > 1);
+      const duplicateLists = Object.values(listGroups).filter(group => group.length > 1);
+
+      if (duplicateSwimlanes.length > 0 || duplicateLists.length > 0) {
+        report.push({
+          boardId: board._id,
+          boardTitle: board.title,
+          duplicateSwimlanes: duplicateSwimlanes.length,
+          duplicateLists: duplicateLists.length,
+          totalSwimlanes: swimlanes.length,
+          totalLists: lists.length
+        });
+      }
+    }
+
+    return {
+      totalBoards: allBoards.length,
+      boardsWithDuplicates: report.length,
+      report
+    };
+  }
+});