ruby on rails界面常用控件写法以及rails常用方法

在数据表中增加字段

class CreateTpoolUserTypes < ActiveRecord::Migration  def change    create_table :tpool_user_types , id: false do |t|      t.string :id,limit: 30      t.string :utype_name, limit: 50      t.string :utype_desc, limit: 500      t.timestamps null: false    end  endend

带验证的输入框,在model中要加入验证

<%= form_for [@hukou] ,:html => { :class=>"form-horizontal" }  do |f|%>       <!--@hukou 是用户数据表名-->  <div class="form-group">    <label for="hukou_name" class="col-sm-2 control-label">name</labe    <div class="col-sm-6">      <%= f.text_area :name , cols: 0, rows: 1 %>    </div>    <div class="col-sm-3">      <%= error_div(@hukou, :name, "name") %>    </div>  </div><%end%>

单选框 //性别选择

<%= radio_button_tag(:sex, "1") %><%= label_tag(:age_child, "man") %><%= radio_button_tag(:sex, "0") %><%= label_tag(:age_adult, "women") %>

下拉框

<%= f.select :user_type, options_for_select([ ['管理员1',0], ['管理员2', 1], ['管理员3', 2], ['管理员4', 3] ])%>

创建分页方法
在model中添加如下代码

class Hukou < ActiveRecord::Base  # 分页  def self.search(page)    order('id desc ').paginate(page: page, per_page: 2)  #id 为要查询的序列，在数据库中，一般是第一项，per_page表示每页现实的个数  endend

在Controller里这样写

def index  @hukous = Hukou.search(params[:page]||1)enddef update  @page=params[:page]  respond_to do |format|    if @hukou.update(hukou_params)      format.html { redirect_to @hukou, notice: 'Hukou was successfully updated.' }      format.json { render :show, status: :ok, location: @hukou }      redirect_to hukous_path(page:@page), notice: t(:notice_successful_update)    else      format.html { render :edit }      format.json { render json: @hukou.errors, status: :unprocessable_entity }    end  endenddef destroy  @hukou.destroy  @page=params[:page]  respond_to do |format|    format.html { redirect_to hukous_url, notice: 'Hukou was successfully destroyed.' }    format.json { head :no_content }    redirect_to hukous_path(page:@page),notice: t(:notice_successful_delete)  endend

最后在要显示的index.erb页面的最后加上下面代码

<div class="col-lg-12 digg_pagination">    <%= will_paginate @hukous,   :previous_label => t(:label_previous), :next_label => t(:label_next) %></div>

上传图片的方法，主要代码：

<%=file_field_tag "image_file_path", accept: "image/bmp,image/png,image/gif,image/jpeg", style:"display:none;" %><div class="col-lg-4">  <p>       <img id="picture_img" src="" style="width:109px;height:154px;"/>    </p>  <p><%=hidden_field_tag "picture"  %></p></div>

上传图片 script里面写下面的

 var target_img_object;    var target_input_object;    $('#papers_popup_img').click(function(){      $("#image_file_path").val("");      $("#image_file_path").click();       target_img_object = $("#papers_popup_img");       target_input_object = $("#papers_popup_url");    });    //#################################    //# 使用插件ajaxfileupload图片上传    //##################################    $('#image_file_path').ajaxfileupload({      'action': '/user_center/candidates/upload_image',      'params': {        'authenticity_token': $("input[name='authenticity_token']").val()      },      'onComplete': function(response) {        if( target_img_object != undefined && (target_img_object.length > 0) ) {          // 把上传成功的图片显示出来          target_img_object.attr("src", response);        }        if( target_img_object != undefined && (target_img_object.length > 0) ) {          // // 把上传成功的图片路径保存起来          target_input_object.val(response);        }      },      'onStart': function() {      },      'onCancel': function() {      }    });

控制器的create中添加

def create     @hukou = Hukou.new(hukou_params)  image_url=params[:picture] #加上此句  @hukou.picture = image_url  respond_to do |format|    if @hukou.save      format.html { redirect_to @hukou, notice: 'Hukou was successfully created.' }      format.json { render :show, status: :created, location: @hukou }    else      format.html { render :new }      format.json { render json: @hukou.errors, status: :unprocessable_entity }    end  endend

进入调试 binding.pry

修改文件rails g migration ChangeTypeFieldForT_Agencies

增加字段

ruby script/rails generate migration add_password_to_myblogs password:stringrake db:migrate  #更新表

查看路由rake routes | grep 路由名字

mongodb查询方式

item = MongoSalesWork.where({sales_code: params.sales_code, :can_time.gt => params.app_start_time,:can_time.lte => params.app_end_time})