remove.md

remove(selector[, cb]) [Isomorphic]

Remove records from FilesCollection and files from FS.

• selector {Object} - See Mongo Selectors
• cb {Function} - Callback, with one error argument
• Returns {FilesCollection} - Current FilesCollection instance

import { FilesCollection } from 'meteor/ostrio:files';

const imagesCollection = new FilesCollection({collectionName: 'images'});

// Usage:
// Drop collection's data and remove all associated files from FS
imagesCollection.remove({});
// Remove particular file
imagesCollection.remove({_id: 'Rfy2HLutYK4XWkwhm'});
// Equals to above
imagesCollection.findOne({_id: 'Rfy2HLutYK4XWkwhm'}).remove();


// Direct Collection usage
// Remove record(s) ONLY from collection
imagesCollection.collection.remove({});

// Using callback
imagesCollection.remove({_id: 'Rfy2HLutYK4XWkwhm'}, (error) => {
  if (error) {
    console.error(`File wasn't removed, error:  ${error.reason}`);
  } else {
    console.info('File successfully removed');
  }
});

Use onBeforeRemove to avoid unauthorized actions, for more info see onBeforeRemove callback

import { FilesCollection } from 'meteor/ostrio:files';

const imagesCollection = new FilesCollection({
  collectionName: 'images',
  allowClientCode: true,
  onBeforeRemove(cursor) {
    const records = cursor.fetch();

    if (records && records.length) {
      if (this.userId) {
        const user = this.user();
        // Assuming user.profile.docs is array
        // with file's records _id(s)

        for (let i = 0, len = records.length; i < len; i++) {
          const file = records[i];
          if (!~user.profile.docs.indexOf(file._id)) {
            // Return false if at least one document
            // is not owned by current user
            return false;
          }
        }
      }
    }

    return true;
  }
});