Module: Humanoid::Criterion::Inclusion

Included in:
Humanoid::Criteria
Defined in:
lib/humanoid/criterion/inclusion.rb

Instance Method Summary collapse

Instance Method Details

#all(attributes = {}) ⇒ Object

Adds a criterion to the Criteria that specifies values that must all be matched in order to return results. Similar to an “in” clause but the underlying conditional logic is an “AND” and not an “OR”. The MongoDB conditional operator that will be used is “$all”.

Options:

attributes: A Hash where the key is the field name and the value is an Array of values that must all match.

Example:

criteria.all(:field => ["value1", "value2"])

criteria.all(:field1 => ["value1", "value2"], :field2 => ["value1"])

Returns: self



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# File 'lib/humanoid/criterion/inclusion.rb', line 22

def all(attributes = {})
  update_selector(attributes, "$all")
end

#and(selector = nil) ⇒ Object

Adds a criterion to the Criteria that specifies values that must be matched in order to return results. This is similar to a SQL “WHERE” clause. This is the actual selector that will be provided to MongoDB, similar to the Javascript object that is used when performing a find() in the MongoDB console.

Options:

selectior: A Hash that must match the attributes of the Document.

Example:

criteria.and(:field1 => "value1", :field2 => 15)

Returns: self



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# File 'lib/humanoid/criterion/inclusion.rb', line 41

def and(selector = nil)
  where(selector)
end

#in(attributes = {}) ⇒ Object

Adds a criterion to the Criteria that specifies values where any can be matched in order to return results. This is similar to an SQL “IN” clause. The MongoDB conditional operator that will be used is “$in”.

Options:

attributes: A Hash where the key is the field name and the value is an Array of values that any can match.

Example:

criteria.in(:field => ["value1", "value2"])

criteria.in(:field1 => ["value1", "value2"], :field2 => ["value1"])

Returns: self



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# File 'lib/humanoid/criterion/inclusion.rb', line 61

def in(attributes = {})
  update_selector(attributes, "$in")
end

#where(selector = nil) ⇒ Object

Adds a criterion to the Criteria that specifies values that must be matched in order to return results. This is similar to a SQL “WHERE” clause. This is the actual selector that will be provided to MongoDB, similar to the Javascript object that is used when performing a find() in the MongoDB console.

Options:

selectior: A Hash that must match the attributes of the Document.

Example:

criteria.where(:field1 => "value1", :field2 => 15)

Returns: self



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# File 'lib/humanoid/criterion/inclusion.rb', line 80

def where(selector = nil)
  case selector
  when String
    @selector.update("$where" => selector)
  else
    @selector.update(selector ? selector.expand_complex_criteria : {})
  end
  self
end