module Mongoid::Contextual::Queryable
Mixin module which adds methods to Mongoid::Criteria
that indicate the criteria query result will be an empty set.
Attributes
collection[R]
@attribute [r] collection The collection to query against. @attribute [r] criteria The criteria for the context. @attribute [r] klass The klass for the criteria.
criteria[R]
@attribute [r] collection The collection to query against. @attribute [r] criteria The criteria for the context. @attribute [r] klass The klass for the criteria.
klass[R]
@attribute [r] collection The collection to query against. @attribute [r] criteria The criteria for the context. @attribute [r] klass The klass for the criteria.
Public Instance Methods
blank?()
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Is the enumerable of matching documents empty?
@example Is the context empty?
context.blank?
@return [ true | false ] If the context is empty.
# File lib/mongoid/contextual/queryable.rb, line 22 def blank? !exists? end
Also aliased as: empty?