Prevent adding of same file already present in the queue #719

New Issue

2017-03-31T09:34:16Z

sahil1989 commented

2017-03-31 09:34:16 +00:00

(Migrated from github.com)

There doesn't seem to be any solution available, from preventing the addition of a file already present in the queue.

👍 1

jesus-novologic commented

2017-07-17 17:44:37 +00:00

(Migrated from github.com)

Wow, I have the same issue, and nobody answered it

DzmVasileusky commented

2018-05-25 08:25:04 +00:00

(Migrated from github.com)

Well, you can check file hash on onAfterAddingFile.
A proper way will be to get MD5 hash but you can do more simple and less reliable hash function, like that.

getFileHash (file: File): string {

    return `${file.lastModifiedDate}${file.name}${file.size}`;

}

and then just check

fileHashes: string[] = [];
...
this.uploader.onAfterAddingFile = (newItem) => {

    const hash = this.getFileHash(newItem._file);

    // prevent dupes
    if (this.fileHashes.indexOf(hash) !== -1) {

        this.fileHashes.push(hash);

    } else {

        this.uploader.removeFromQueue(newItem);

    }

}

Well, you can check file hash on `onAfterAddingFile`. A proper way will be to get MD5 hash but you can do more simple and less reliable hash function, like that. ``` getFileHash (file: File): string { return `${file.lastModifiedDate}${file.name}${file.size}`; } ``` and then just check ``` fileHashes: string[] = []; ... this.uploader.onAfterAddingFile = (newItem) => { const hash = this.getFileHash(newItem._file); // prevent dupes if (this.fileHashes.indexOf(hash) !== -1) { this.fileHashes.push(hash); } else { this.uploader.removeFromQueue(newItem); } } ```

👍 1 ❤️ 1

Sign in to join this conversation.

1 Participants

Notifications

Due Date

No due date set.

Dependencies

No dependencies set.

Reference: dc/ng2-file-upload#719