Cast PostgreSQL's timestamptz columns to time (#1325)

* Cast PostgreSQL's :timestamptz to time

* Add basic Nodes::Value specs (Cast PostgreSQL's timestamptz columns to time)

lib/ransack/nodes/value.rb

@@ -26,7 +26,7 @@ def cast(type)
         case type
         when :date
           cast_to_date(value)
-        when :datetime, :timestamp, :time
+        when :datetime, :timestamp, :time, :timestamptz
           cast_to_time(value)
         when :boolean
           cast_to_boolean(value)

spec/ransack/nodes/value_spec.rb

@@ -0,0 +1,115 @@
+require 'spec_helper'
+
+module Ransack
+  module Nodes
+    describe Value do
+      let(:context) { Context.for(Person) }
+
+      subject do
+        Value.new(context, raw_value)
+      end
+
+      context "with a date value" do
+        let(:raw_value) { "2022-05-23" }
+
+        [:date].each do |type|
+          it "should cast #{type} correctly" do
+            result = subject.cast(type)
+
+            expect(result).to be_a_kind_of(Date)
+            expect(result).to eq(Date.parse(raw_value))
+          end
+        end
+      end
+
+      context "with a timestamp value" do
+        let(:raw_value) { "2022-05-23 10:40:02 -0400" }
+
+        [:datetime, :timestamp, :time, :timestamptz].each do |type|
+          it "should cast #{type} correctly" do
+            result = subject.cast(type)
+
+            expect(result).to be_a_kind_of(Time)
+            expect(result).to eq(Time.zone.parse(raw_value))
+          end
+        end
+      end
+
+      Constants::TRUE_VALUES.each do |value|
+        context "with a true boolean value (#{value})" do
+          let(:raw_value) { value.to_s }
+
+          it "should cast boolean correctly" do
+            result = subject.cast(:boolean)
+            expect(result).to eq(true)
+          end
+        end
+      end
+
+      Constants::FALSE_VALUES.each do |value|
+        context "with a false boolean value (#{value})" do
+          let(:raw_value) { value.to_s }
+
+          it "should cast boolean correctly" do
+            result = subject.cast(:boolean)
+
+            expect(result).to eq(false)
+          end
+        end
+      end
+
+      ["12", "101.5"].each do |value|
+        context "with an integer value (#{value})" do
+          let(:raw_value) { value }
+
+          it "should cast #{value} to integer correctly" do
+            result = subject.cast(:integer)
+
+            expect(result).to be_an(Integer)
+            expect(result).to eq(value.to_i)
+          end
+        end
+      end
+
+      ["12", "101.5"].each do |value|
+        context "with a float value (#{value})" do
+          let(:raw_value) { value }
+
+          it "should cast #{value} to float correctly" do
+            result = subject.cast(:float)
+
+            expect(result).to be_an(Float)
+            expect(result).to eq(value.to_f)
+          end
+        end
+      end
+
+      ["12", "101.5"].each do |value|
+        context "with a decimal value (#{value})" do
+          let(:raw_value) { value }
+
+          it "should cast #{value} to decimal correctly" do
+            result = subject.cast(:decimal)
+
+            expect(result).to be_a(BigDecimal)
+            expect(result).to eq(value.to_d)
+          end
+        end
+      end
+
+      ["12", "101.513"].each do |value|
+        context "with a money value (#{value})" do
+          let(:raw_value) { value }
+
+          it "should cast #{value} to money correctly" do
+            result = subject.cast(:money)
+
+            expect(result).to be_a(String)
+            expect(result).to eq(value.to_f.to_s)
+          end
+        end
+      end
+
+    end
+  end
+end