module Mongoid::Matcher::Expression
Base singleton module used for evaluating whether a given document in-memory matches an MSQL query expression.
@api private
Public Instance Methods
matches?(document, expr)
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Returns whether a document satisfies a query expression.
@param [ Mongoid::Document
] document The document. @param [ Hash ] expr The expression.
@return [ true | false ] Whether the document matches.
@api private
# File lib/mongoid/matcher/expression.rb, line 19 def matches?(document, expr) if expr.nil? raise Errors::InvalidQuery, "Nil condition in expression context" end unless Hash === expr raise Errors::InvalidQuery, "MQL query must be provided as a Hash" end expr.all? do |k, expr_v| k = k.to_s if k == "$comment" # Nothing return true end if k.start_with?('$') ExpressionOperator.get(k).matches?(document, expr_v) else values = Matcher.extract_attribute(document, k) if values.length > 0 values.any? do |v| FieldExpression.matches?(true, v, expr_v) end else FieldExpression.matches?(false, nil, expr_v) end end end end