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Contents
module Headmin
module Filter
class Field < Headmin::Filter::Base
OPERATORS = %w[eq not_eq matches does_not_match]
def initialize(attribute, params, association: nil)
@attribute = association ? "#{association}_#{attribute}".to_sym : attribute
@attribute = "field_#{attribute}".to_sym
@raw_value = params[@attribute]
@association = association
@instructions = []
if params.key?(@attribute)
parse(@raw_value)
end
end
def cast_value(value)
value
end
def display_value(value)
value.downcase
end
def query(collection)
return collection unless @instructions.any?
query = nil
@instructions.each do |instruction|
query = build_query(query, collection, instruction)
end
collection = collection.joins(:fields)
collection.where(query)
end
def build_query(query, collection, instruction)
query_operator = convert_to_query_operator(instruction[:operator])
query_value = convert_to_query_value(instruction[:value], instruction[:operator])
query_operator, query_value = process_null_operators(query_operator, query_value)
model = collection.is_a?(Class) ? collection : collection.model
new_attribute = attribute.to_s.gsub("field_", "").to_sym
fields_model = model.reflect_on_association(:fields).klass
new_query = fields_model.arel_table[:name].matches(new_attribute).and(fields_model.arel_table[:value].send(query_operator, query_value))
query ? query.send(instruction[:conditional], new_query) : new_query
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems