Add Features: allowing lists to be sorted by modifiedAt when not in draggable mode.

Bug Fix #2093: the broken should be prior to file attachment feature introduced, and tested export board is working.

Thanks to whowillcare !

( xet7 merged this pull request manually from https://github.com/wekan/wekan/pull/2756 )

Closes #2093

1 files changed, 15 insertions, 0 deletions

diff --git a/models/export.js b/models/export.js
index a69be970..056eefdc 100644
--- a/models/export.js
+++ b/models/export.js
@@ -50,12 +50,18 @@ if (Meteor.isServer) {
   });
 }
 
+// exporter maybe is broken since Gridfs introduced, add fs and path
+
 export class Exporter {
   constructor(boardId) {
     this._boardId = boardId;
   }
 
   build() {
+    const fs = Npm.require('fs');
+    const os = Npm.require('os');
+    const path = Npm.require('path');
+
     const byBoard = { boardId: this._boardId };
     const byBoardNoLinked = {
       boardId: this._boardId,
@@ -134,6 +140,11 @@ export class Exporter {
     const getBase64Data = function(doc, callback) {
       let buffer = new Buffer(0);
       // callback has the form function (err, res) {}
+      const tmpFile = path.join(
+        os.tmpdir(),
+        `tmpexport${process.pid}${Math.random()}`,
+      );
+      const tmpWriteable = fs.createWriteStream(tmpFile);
       const readStream = doc.createReadStream();
       readStream.on('data', function(chunk) {
         buffer = Buffer.concat([buffer, chunk]);
@@ -143,8 +154,12 @@ export class Exporter {
       });
       readStream.on('end', function() {
         // done
+        fs.unlink(tmpFile, () => {
+          //ignored
+        });
         callback(null, buffer.toString('base64'));
       });
+      readStream.pipe(tmpWriteable);
     };
     const getBase64DataSync = Meteor.wrapAsync(getBase64Data);
     result.attachments = Attachments.find(byBoard)