您谈论对数值进行过滤,我已经为选项范围编写了一个过滤器:
def ProductFilters.ov_range_test(range1, range2)
ov = Arel::Table.new("spree_option_values")
cast = Arel::Nodes::NamedFunction.new "CAST", [ ov[:presentation].as("integer")]
comparaisons = cast.in(range1..range2)
comparaisons
end
Spree::Product.add_search_scope :screenSize_range_any do |*opts|
conds = opts.map {|o| Spree::ProductFilters.screenSize_filter[:conds][o]}.reject {|c| c.nil?}
scope = conds.shift
conds.each do |new_scope|
scope = scope.or(new_scope)
end
option_values=Spree::OptionValue.where(scope).joins(:option_type).where(OptionType.table_name => {:name => "tailleEcran"}).pluck("#{OptionValue.table_name}.id")
Spree::Product.where("#{Product.table_name}.id in (select product_id from #{Variant.table_name} v left join spree_option_values_variants ov on ov.variant_id = v.id where ov.option_value_id in (?))", option_values)
end
def ProductFilters.screenSize_filter
conds = [ [ "20p ou moins",ov_range_test(0,20)],
[ "20p - 30p",ov_range_test(20,30)],
[ "30p - 40p" ,ov_range_test(30,40)],
[ "40p ou plus",ov_range_test(40,190)]]
{ :name => "taille",
:scope => :screenSize_range_any,
:options => :tailleEcran,
:conds => Hash[*conds.flatten],
:labels => conds.map {|k,v| [k,k]}
}
end
对于离散的特定值,您也可以看到这个:
https ://gist.github.com/Ranger-X/2511088