Add datepicker simple form input

app/views/alchemy/admin/resources/_form.html.erb

@@ -6,6 +6,8 @@
         label_method: relation[:attr_method],
         include_blank: Alchemy.t(:blank, scope: 'resources.relation_select'),
         input_html: {class: 'alchemy_selectbox'} %>
+    <% elsif attribute[:type].in? %i[date time datetime] %>
+      <%= f.datepicker attribute[:name], resource_attribute_field_options(attribute) %>
     <% else %>
       <%= f.input attribute[:name], resource_attribute_field_options(attribute) %>
     <% end %>

lib/alchemy/forms/builder.rb

@@ -18,11 +18,31 @@ def input(attribute_name, options = {}, &block)
         super
       end
 
+      # Renders a simple_form input that displays a datepicker
+      #
+      def datepicker(attribute_name, options = {})
+        options[:wrapper] = :alchemy
+
+        type = options[:as] || :date
+        value = options.fetch(:input_html, {}).delete(:value)
+        date = value || object.send(attribute_name.to_sym).presence
+        date = Time.zone.parse(date) if date.is_a?(String)
+
+        input_options = {
+          type: :text,
+          class: type,
+          data: { datepicker_type: type },
+          value: date&.iso8601,
+        }.merge(options[:input_html] || {})
+
+        input attribute_name, as: :string, input_html: input_options
+      end
+
       # Renders a button tag wrapped in a div with 'submit' class.
       #
       def submit(label, options = {})
         options = {
-          wrapper_html: {class: "submit"},
+          wrapper_html: { class: "submit" },
         }.update(options)
         template.content_tag("div", options.delete(:wrapper_html)) do
           template.content_tag("button", label, options.delete(:input_html))

lib/alchemy/resources_helper.rb

@@ -107,12 +107,10 @@ def resource_attribute_field_options(attribute)
       when "boolean"
         options
       when "date", "time", "datetime"
-        date = resource_instance_variable.send(attribute[:name]) || Time.current
         options.merge(
           as: "string",
           input_html: {
-            "data-datepicker-type" => input_type,
-            value: date ? date.iso8601 : nil,
+            data: { datepicker_type: input_type },
           },
         )
       when "text"

spec/libraries/forms/builder_spec.rb

@@ -0,0 +1,119 @@
+# frozen_string_literal: true
+
+require "rails_helper"
+
+RSpec.describe Alchemy::Forms::Builder, type: :controller do
+  let(:object_name) { "Ding" }
+  let(:form_object) { double("FormObject", foo: "Baz") }
+
+  let(:template) do
+    double(
+      "Template",
+      controller: controller,
+      label: "<label>",
+      text_field: "<input>",
+      content_tag: "<div>",
+    )
+  end
+
+  let(:builder) { described_class.new(object_name, form_object, template, {}) }
+
+  describe "#datepicker" do
+    let(:attribute) { :foo }
+
+    subject { builder.datepicker(attribute, options) }
+
+    context "with date value" do
+      context "on the object" do
+        let(:options) { { as: :date } }
+        let(:form_object) { double("FormObject", foo: "2021-07-14") }
+
+        it "returns input field with date value set" do
+          expect(template).to receive(:text_field).with(
+            "Ding",
+            :foo,
+            hash_including(
+              type: :text,
+              data: { datepicker_type: :date },
+              value: "2021-07-14T00:00:00Z",
+              class: [:string, :required, :date],
+            )
+          )
+          subject
+        end
+      end
+
+      context "in the html options" do
+        let(:options) { { as: :date, input_html: { value: "2021-08-01" } } }
+
+        it "returns input field with parsed date value set" do
+          expect(template).to receive(:text_field).with(
+            "Ding",
+            :foo,
+            hash_including(
+              type: :text,
+              data: { datepicker_type: :date },
+              value: "2021-08-01T00:00:00Z",
+              class: [:string, :required, :date],
+            )
+          )
+          subject
+        end
+      end
+    end
+
+    context "as date" do
+      let(:options) { { as: :date } }
+
+      it "returns input field with datepicker attributes" do
+        expect(template).to receive(:text_field).with(
+          "Ding",
+          :foo,
+          hash_including(
+            type: :text,
+            data: { datepicker_type: :date },
+            value: nil,
+            class: [:string, :required, :date],
+          )
+        )
+        subject
+      end
+    end
+
+    context "as time" do
+      let(:options) { { as: :time } }
+
+      it "returns input field with datepicker attributes" do
+        expect(template).to receive(:text_field).with(
+          "Ding",
+          :foo,
+          hash_including(
+            type: :text,
+            data: { datepicker_type: :time },
+            value: nil,
+            class: [:string, :required, :time],
+          )
+        )
+        subject
+      end
+    end
+
+    context "as datetime" do
+      let(:options) { { as: :datetime } }
+
+      it "returns input field with datepicker attributes" do
+        expect(template).to receive(:text_field).with(
+          "Ding",
+          :foo,
+          hash_including(
+            type: :text,
+            data: { datepicker_type: :datetime },
+            value: nil,
+            class: [:string, :required, :datetime],
+          )
+        )
+        subject
+      end
+    end
+  end
+end

spec/libraries/resources_helper_spec.rb

@@ -24,7 +24,7 @@ class ResourcesControllerForEngine
   include Alchemy::ResourcesHelper
 
   def resource_handler
-    @resource_handler ||= Alchemy::Resource.new("admin/engine_resources", {"engine_name" => "my_engine"})
+    @resource_handler ||= Alchemy::Resource.new("admin/engine_resources", { "engine_name" => "my_engine" })
   end
 end
 
@@ -119,7 +119,7 @@ def resource_handler
     subject { controller.render_attribute(resource_item, attributes, options) }
 
     let(:options) { {} }
-    let(:attributes) { {name: "name"} }
+    let(:attributes) { { name: "name" } }
 
     it "should return the value from resource attribute" do
       allow(resource_item).to receive(:name).and_return("my-name")
@@ -167,15 +167,15 @@ def resource_handler
       end
 
       context "but with options[:truncate] set to 10" do
-        let(:options) { {truncate: 10} }
+        let(:options) { { truncate: 10 } }
 
         it "does not truncate the values" do
           expect(subject.length).to eq(10)
         end
       end
 
       context "but with options[:truncate] set to false" do
-        let(:options) { {truncate: false} }
+        let(:options) { { truncate: false } }
 
         it "does not truncate the values" do
           expect(subject.length).to eq(51)
@@ -203,7 +203,7 @@ def resource_handler
       end
 
       context "with options[:datetime_format] set to other format" do
-        let(:options) { {datetime_format: "OTHR"} }
+        let(:options) { { datetime_format: "OTHR" } }
 
         it "uses this format" do
           expect(controller).to receive(:l).with(now, format: "OTHR")
@@ -232,7 +232,7 @@ def resource_handler
       end
 
       context "with options[:time_format] set to other format" do
-        let(:options) { {time_format: "OTHR"} }
+        let(:options) { { time_format: "OTHR" } }
 
         it "uses this format" do
           expect(controller).to receive(:l).with(now, format: "OTHR")
@@ -242,6 +242,123 @@ def resource_handler
     end
   end
 
+  describe "#resource_attribute_field_options" do
+    subject { controller.resource_attribute_field_options(attribute) }
+
+    context "a boolean" do
+      let(:attribute) do
+        {
+          type: :boolean,
+        }
+      end
+
+      it "just returns hint options" do
+        is_expected.to match(
+          hash_including(
+            hint: nil,
+          )
+        )
+      end
+    end
+
+    context "a date" do
+      let(:attribute) do
+        {
+          type: :date,
+        }
+      end
+
+      it "returns options for date picker" do
+        is_expected.to match(
+          hash_including(
+            hint: nil,
+            as: "string",
+            input_html: {
+              data: { datepicker_type: "date" },
+            },
+          )
+        )
+      end
+    end
+
+    context "a datetime" do
+      let(:attribute) do
+        {
+          type: :datetime,
+        }
+      end
+
+      it "returns options for datetime picker" do
+        is_expected.to match(
+          hash_including(
+            hint: nil,
+            as: "string",
+            input_html: {
+              data: { datepicker_type: "datetime" },
+            },
+          )
+        )
+      end
+    end
+
+    context "a time" do
+      let(:attribute) do
+        {
+          type: :time,
+        }
+      end
+
+      it "returns options for time picker" do
+        is_expected.to match(
+          hash_including(
+            hint: nil,
+            as: "string",
+            input_html: {
+              data: { datepicker_type: "time" },
+            },
+          )
+        )
+      end
+    end
+
+    context "a text" do
+      let(:attribute) do
+        {
+          type: :text,
+        }
+      end
+
+      it "returns options for textarea" do
+        is_expected.to match(
+          hash_including(
+            hint: nil,
+            as: "text",
+            input_html: {
+              rows: 4,
+            },
+          )
+        )
+      end
+    end
+
+    context "everything else" do
+      let(:attribute) do
+        {
+          type: :foo,
+        }
+      end
+
+      it "returns options for text input field" do
+        is_expected.to match(
+          hash_including(
+            hint: nil,
+            as: "string",
+          )
+        )
+      end
+    end
+  end
+
   describe "#resource_name" do
     it "returns resource_handler.resource_name" do
       expect(controller.resource_name).to eq("my_resource")