Class: Parse::Constraint::ContainsAllConstraint

Inherits:
Parse::Constraint show all
Defined in:
lib/parse/query/constraints.rb

Overview

Equivalent to the $all Parse query operation. Checks whether the value in the column field contains all of the given values provided in the array. Note that the field column should be of type Array in your Parse class.

q.where :field.all => array
q.where :array_key.all => [2,3,4]

See Also:

Instance Attribute Summary

Attributes inherited from Parse::Constraint

#operand, #operation, #operator, #value

Instance Method Summary collapse

Methods inherited from Parse::Constraint

#as_json, constraint_keyword, create, formatted_value, #formatted_value, #initialize, #key, #precedence, register, #to_s

Constructor Details

This class inherits a constructor from Parse::Constraint

Instance Method Details

#all ⇒ ContainsAllConstraint

A registered method on a symbol to create the constraint. Maps to Parse operator “$all”.

Examples:

q.where :field.all => array

Returns:




# File 'lib/parse/query/constraints.rb', line 474

#build ⇒ Hash

Returns the compiled constraint.

Returns:

  • (Hash) —

    the compiled constraint.



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# File 'lib/parse/query/constraints.rb', line 495

def build
  val = formatted_value
  val = [val].compact unless val.is_a?(Array)
  { @operation.operand => { key => val } }
end

#contains_all ⇒ ContainsAllConstraint

Alias for #all

Returns:




# File 'lib/parse/query/constraints.rb', line 480

#superset_of ⇒ ContainsAllConstraint

Alias for #all - semantically clearer when checking if array is a superset

Examples:

q.where :tags.superset_of => ["rock"]  # contains at least "rock" (and possibly more)

Returns:



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# File 'lib/parse/query/constraints.rb', line 489

constraint_keyword :$all