class ParamsReady::Query::NullnessPredicate
Public Class Methods
new(definition)
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Calls superclass method
ParamsReady::Parameter::AbstractParameter::new
# File lib/params_ready/query/nullness_predicate.rb, line 10 def initialize(definition) super definition @data = definition.value_parameter.create end
Public Instance Methods
build_query(select_expression, context: nil)
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# File lib/params_ready/query/nullness_predicate.rb, line 15 def build_query(select_expression, context: nil) query = select_expression.eq(nil) if !unwrap query.not else query end end
inspect_content()
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# File lib/params_ready/query/nullness_predicate.rb, line 34 def inspect_content "#{definition.attribute_name} is_null? #{@data.inspect}" end
perform_test(record, attribute_name)
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# File lib/params_ready/query/nullness_predicate.rb, line 24 def perform_test(record, attribute_name) if unwrap return true if record.nil? record.send(attribute_name).nil? else return false if record.nil? !record.send(attribute_name).nil? end end