Class: Parse::Constraint::PrivateAclConstraint

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

Overview

Note:

This constraint uses aggregation pipeline because Parse Server restricts direct queries on internal ACL fields.

ACL Private/Master-Key-Only Constraint Query objects with completely empty ACL (no read or write permissions). These objects can only be accessed with the master key.

Examples:

Find all private objects

Song.query.where(:acl.private_acl => true)

Find all non-private objects (have some permissions)

Song.query.where(:acl.private_acl => false)

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

#build ⇒ Object 



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# File 'lib/parse/query/constraints.rb', line 3267

def build
  is_private = @value == true

  if is_private
    # Match objects with empty or missing _rperm AND _wperm
    pipeline = [
      {
        "$match" => {
          "$and" => [
            {
              "$or" => [
                { "_rperm" => { "$exists" => true, "$eq" => [] } },
                { "_rperm" => { "$exists" => false } },
              ],
            },
            {
              "$or" => [
                { "_wperm" => { "$exists" => true, "$eq" => [] } },
                { "_wperm" => { "$exists" => false } },
              ],
            },
          ],
        },
      },
    ]
  else
    # Match objects that have SOME permissions (either read or write)
    pipeline = [
      {
        "$match" => {
          "$or" => [
            { "_rperm" => { "$exists" => true, "$ne" => [] } },
            { "_wperm" => { "$exists" => true, "$ne" => [] } },
          ],
        },
      },
    ]
  end

  { "__aggregation_pipeline" => pipeline }
end