第3回：Google Maps＋Ruby on Railsで連携したアプリケーションを作る (2/3)

class ApplicationController < ActionController::Base
  before_filter :add_lzxdata_to_params
  # Pick a unique cookie name to distinguish our session data from
others'
  session :session_key => '_laszlodemo_session_id'

  def add_lzxdata_to_params
    if params.include?('lzdata')
      lzdata = Hash.from_xml(params[:lzdata]).with_indifferent_access
      params.update(lzdata);
    end
  end
end


 # POST /customers
  # POST /customers.xml
  def create
    @customer = Customer.new(params[:customer])

    respond_to do |format|
      if @customer.save
        flash[:notice] = 'Customer was successfully created.'
        format.html { redirect_to customer_url(@customer) }
        format.xml { render :xml => '<ok action="create" />' }
      else
        format.html { render :action => "new" }
        format.xml { render :xml => @customer.errors.to_xml }
      end
    end
  end

  # PUT /customers/1
  # PUT /customers/1.xml
  def update
    @customer = Customer.find(params[:id])

    respond_to do |format|
      if @customer.update_attributes(params[:customer])
        flash[:notice] = 'Customer was successfully updated.'
        format.html { redirect_to customer_url(@customer) }
        format.xml { render :xml => '<ok action="update" />' }
      else
        format.html { render :action => "edit" }
         format.xml { render :xml => @customer.errors.to_xml }
      end
    end
  end

  # DELETE /customers/1
  # DELETE /customers/1.xml
  def destroy
    @customer = Customer.find(params[:id])
      @customer.destroy

    respond_to do |format|
      format.html { redirect_to customers_url }
      format.xml { render :xml => '<ok action="delete" />' }
    end
  end


<library>
    <include href="gridbutton.lzx" />

    <!--- REST保存、削除機能が追加されたグリッド -->
    <class name="restgrid" extends="grid">
        <!--- リクエストベースURL -->
        <attribute name="baseurl" value="" type="string" />
        <!--- 保存ボタン表示 -->
        <attribute name="showsavebutton" type="boolean" value="true" />
        <!--- 削除ボタン表示 -->
        <attribute name="showdeletebutton" type="boolean" value="true" />

        <!--- @keywords private アクションされたデータポインタを保持 -->
        <attribute name="_actioneddp" value="null" />

        <!-- RESTリクエスト用のデータセット -->
        <dataset name="actionds" request="false" />

        <gridbutton text="保存" visible="${classroot.showsavebutton}">
            <handler name="onclick" args="dp">
                 classroot.updatedata(dp);
           </handler>
        </gridbutton>
        <gridbutton text="削除" visible="${classroot.showdeletebutton}">
           <handler name="onclick" args="dp">
                classroot.deletedata(dp);
           </handler>
        </gridbutton>

        <!--- 新規データ作成 -->
        <method name="createdata">
            this.request("post", "");
        </method>
        <!--- @keywords private データ削除 -->
        <method name="deletedata" args="dp">
            var nodeid = dp.xpathQuery("id/text()");
            this._actioneddp = dp;
           this.request("delete", nodeid + ".xml");
          </method>

        <!--- @keywords private データ更新 -->
        <method name="updatedata" args="dp"><![CDATA[
            var nodeid = dp.xpathQuery("id/text()");
            this._actioneddp = dp;
            this.request("put", nodeid + ".xml");
          ]]></method>

        <!--- @keyword private データリクエスト -->
        <method name="request" args="method, obj"><![CDATA[
            var p = new LzParam();

            switch(method){
             case "get": case "GET":
                this.actionds.setQueryType("get");
                break;
            case "post": case "POST":
                this.actionds.setQueryType("post");
                break;
            case "delete": case "DELETE":
                this.actionds.setQueryType("post");
                p.addValue("_method", "delete");
                break;
            case "put": case "PUT":
                this.actionds.setQueryType("post");
                p.addValue("_method", "put");
                p.addValue("lzdata", this._actioneddp.serialize());
                break;
            }
            p.addValue("format", "xml");

            this.actionds.setSrc(this.baseurl + obj);
            this.actionds.setQueryString(p);
            this.actionds.doRequest();
          ]]></method>
    </class>
</library>