mongoid not equal

"Not equal" named scope in rails with Mongoid - The quick answer is that a MongoDB server query operates only on a single collection. There is no join that crosses collections. You are

Querying - All queries in Mongoid are Criteria , which is a chainable and lazily Find a document by the provided attributes, and if not found raise an error or return nil

$ne - $ne selects the documents where the value of the field is not equal to the specified value . This includes documents that do not contain the field . For comparison

[MONGOID-3087] Rails 4 .not query in Mongoid - Rails 4 provides .not query. Article.where.not(title: 'Rails PM GMT+0000. currently in mongoid you can use not in 2 different ways: not equal.

Module: Mongoid::Equality - document == other. Parameters: other (Document, Object) —. The other object to compare with. Returns: (true, false) —. True if the ids are equal, false if not.

Module: Mongoid::Criterion::Exclusion - Adds a criterion to the Criteria that specifies values that are not allowed to is a value that must not be equal to the corresponding field value in the database.

[mongoid] how to query where a field is neither nil nor blank - Mongoid::Criteria object, it looks like it is collapsing the query, and .. Is this because you have some documents where `name` is not set at all

Mongoid and Aggregation Framework: Get similar elements based - We have an article, that has some tags (%w{ ruby rails mongoid mongodb }) though we decided to get similar articles, not similar or equal:

MongoMapper query for not null column. · GitHub - See? If you don't contact with all explicitly, you fail. This is different from Rails ActiveRecord. What is .ne? ne means not equal . There are similar 'gt, lt, get,

Using Mongoid in Rails - Andy Zheng - If you're looking for a NoSQL option to use in Rails, Mongoid is an excellent option. wrong data if you are not careful with how you change your documents. . Returns array of Users with names equal to “Andy” or “David”

mongoid criteria

Class: Mongoid::Criteria - The Criteria class is the core object needed in Mongoid to retrieve objects from the database. Each method on the Criteria returns self to they can be chained in order to create a readable criterion to be executed against the database.

Class: Mongoid::Criteria - The Criteria class is the core object needed in Mongoid to retrieve objects from the database. It is a DSL that essentially sets up the selector and options

Class: Mongoid::Criteria - Overview. The Criteria class is the core object needed in Mongoid to retrieve objects from the database. Each method on the Criteria returns self to they can be chained in order to create a readable criterion to be executed against the database.

How does Mongoid "criteria" work? - In Mongoid, the criteria represents the query, not the elements. You can think of a criteria as a filter, a scope, a query object. Once you have a

Querying - All queries in Mongoid are Criteria , which is a chainable and lazily evaluated wrapper to a MongoDB dynamic query. Criteria only touch the database when they

mongoid/criteria.rb at master · mongodb/mongoid · GitHub - Ruby ODM framework for MongoDB. Contribute to mongodb/mongoid development by creating an account on GitHub.

Mongoid criteria - Learning Mongoid - The Mongoid::Criteria module is the core object for querying MongoDB. This includes the entire Origin DSL for querying along with other goodies. Every time a

Maintainable mongodb queries in Ruby with query object and - The increase in complexity means the above script will start looking like this: criteria = Mongoid::Criteria.new(Article) if filter[:published_state] == 'true' criteria

Learning Mongoid - I tried different query methods and criteria but always the same result. I'm fairly new to Rails and Mongoid, so apologies if it's a silly mistake on my end.

mongoid map reduce

MongoDB - Mongoid map reduce basic operation - Taking the examples from http://mongoid.org/en/mongoid/docs/querying.shtml# map_reduce and adapting them to your situation and adding comments to explain.

Class: Mongoid::Contextual::MapReduce - Defined in: lib/mongoid/contextual/map_reduce.rb Iterates over each of the documents in the map/reduce, excluding the extra information that was passed

Querying - Queries; Queries + Persistence; Scoping; Find and Modify; Map/Reduce; Aggregations All queries in Mongoid are Criteria , which is a chainable and lazily

MongoDB, Mongoid and Map/Reduce - I've been experimenting with MongoDB's map-reduce, called from Ruby, as a replacement for Ruby's Enumerable methods (map/collect, inject)

jcoene/mongoid-mapreduce: Mongoid MapReduce - Mongoid MapReduce provides simple aggregation functions to your models using MongoDB map/reduce - jcoene/mongoid-mapreduce.

mongoid/map_reduce.rb at master · mongodb/mongoid · GitHub - Contribute to mongodb/mongoid development by creating an account on GitHub. Iterates over each of the documents in the map/reduce, excluding the.

Queries - Queries; Queries + Persistence; Scoping; Map/Reduce Query methods are available off a Mongoid::Criteria object as well as off the model's class. copy.

Ruby on Rails Development Using Mongoid 5.0.0 - this article show you how to use MapReduce with Mongoid 5.0.0 in Ruby on Rails such as map, reduce and finalize operations.

Javascript In Your Ruby: Mongoid Map Reduce · More than seven - Javascript In Your Ruby: Mongoid Map Reduce. Oct 10, 2011 · 3 minute read. We 're pretty fond of Mongodb at work and I've been getting an opportunity to kick

Javascript In Your Ruby: Mongoid Map Reduce - We're pretty fond of Mongodb at work and I've been getting an opportunity to kick some of the more interesting tyres recently. I thought I'd

mongoid datetime

Module: Mongoid::Extensions::DateTime - Turn the object from the ruby type we deal with to a Mongo friendly type. Instance Method Details. permalink #__mongoize_time__ ⇒ Time. Mongoize the date

In Mongoid, are there any differences in the Date, Time, DateTime - 1 Answer. There are almost no difference between them, all of them wrap Time type. You can change DateTime, Date or TimeWithZone to get instances of this types after unserializing from mongo. Mongoid extends this classes to add demongoize/mongoize methods for data binding.

Mongoid: Documents - Documents are the core objects in Mongoid and any object that is to be persisted to the database must include . BigDecimal; Date; DateTime; Range

MongoDB ObjectId to Timestamp Converter - Handy converter of MongoDB ObjectIds to timestamps and vice versa.

Module: Mongoid::Extensions::DateTime::ClassMethods - Module: Mongoid::Extensions::DateTime::ClassMethods. Defined in: build/ mongoid-6.2/lib/mongoid/extensions/date_time.rb

Module: Mongoid::Extensions::DateTime - Turn the object from the ruby type we deal with to a Mongo friendly type. Instance Method Details. #__mongoize_time__ ⇒ Time. Mongoize the date time into a

DateTime с MongoDB/Mongoid и Rails 3 Не заполняется - Mongoid не обрабатывает многопараметрические атрибуты, например Date, поэтому вам нужно сделать следующее: # copied from:

mongoid/date_time.rb at master · mongodb/mongoid · GitHub - frozen_string_literal: true. # encoding: utf-8. module Mongoid. class Criteria. module Queryable. module Extensions. # This module contains additional datetime

[MONGOID-4460] Date.mongoize(String) should not convert string to - As shown above, if we try to save a model field of type Date by specifying a fully- qualified DateTime, then mongoid will perform some

MongoId::getTimestamp - Manual - MongoId::getTimestamp — Gets the number of seconds since the epoch that this id was created. This extension that defines this method is deprecated. Instead