Last active
September 12, 2016 17:42
-
-
Save edinella/5819557 to your computer and use it in GitHub Desktop.
Mongoose uniqueness validator, case-sensitive or not
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // context | |
| var mongoose = require('mongoose'); | |
| mongoose.connect('mongodb://...'); | |
| /** | |
| * Generates Mongoose uniqueness validator | |
| * | |
| * @param string modelName | |
| * @param string field | |
| * @param boolean caseSensitive | |
| * | |
| * @return function | |
| **/ | |
| function unique(modelName, field, caseSensitive) { | |
| return function(value, respond) { | |
| if(value && value.length) { | |
| var query = mongoose.model(modelName).where(field, new RegExp('^'+value+'$', caseSensitive ? 'i' : undefined)); | |
| if(!this.isNew) | |
| query = query.where('_id').ne(this._id); | |
| query.count(function(err, n) { | |
| respond(n<1); | |
| }); | |
| } | |
| else | |
| respond(false); | |
| }; | |
| } | |
| // usage: | |
| var Account = mongoose.model('Account', { | |
| // case insensitive | |
| email: { type: String, required: true, validate: [unique('Account', 'email'), 'unique']} | |
| // case sensitive | |
| csfield: { type: String, required: true, validate: [unique('Account', 'csfield', true), 'unique']} | |
| }); | |
| // inspirations | |
| // http://mongoosejs.com/docs/validation.html | |
| // http://fabianosoriani.wordpress.com/2012/03/22/mongoose-validate-unique-field-insensitive/ |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment