better range parsing

app/views/application/_debug.html.haml

@@ -3,7 +3,7 @@
 = ui.card title: "Debug" do |card|
   = card.section do
     = ui.field label: "Params" do
-      = ui.code request.params.pretty_inspect
+      = ui.code parsed_params.to_unsafe_h.pretty_inspect
 
     = ui.field label: "Query" do
       = ui.code scope.to_sql

lib/cafe_car/controller/filtering.rb

@@ -2,7 +2,7 @@ module CafeCar::Controller::Filtering
   extend ActiveSupport::Concern
 
   included do
-    helper_method :dot_params
+    helper_method :dot_params, :parsed_params
   end
 
   private

lib/cafe_car/param_parser.rb

@@ -35,9 +35,8 @@ def value(v)
       JSON.parse(v)
     when /,/
       value v.split(',')
-    when /\.\./
-      a, b = v.split('..').map(&:presence).map { value(_1) }
-      a..b
+    when /^(.*?)\.\.(\.?)(.*)$/
+      Range.new(*[$1, $3].map(&:presence).map { value(_1) }, $2.present?)
     when /^\$(\w+)\.(\w+)$/
       $1.constantize.arel_table[$2]
     when Array

lib/cafe_car/query_builder.rb

@@ -19,10 +19,18 @@ def parse_time(value)
     end
 
     def parse_value(key, value)
-      case column(key)&.type
-      when :datetime then parse_time(value) || value
-      when :integer  then value.to_i
-      when :float    then value.to_f
+      case value
+      when Range
+        Range.new(parse_value(key, value.begin), parse_value(key, value.end), value.exclude_end?)
+      when Array
+        value.map { parse_value(key, _1) }
+      when String
+        case column(key)&.type
+        when :datetime then parse_time(value) || value
+        when :integer  then value.to_i
+        when :float    then value.to_f
+        else value
+        end
       else value
       end
     end