rails views

model object (and it's declared to be a resource ),Then in our new.html. ERB and edit.html. ERB forms, we can simply use this:Download rest/APP/views/events/new.html. ERBThe form_for will generate the appropriate form tag depending onState of the @ event object. If it's a new record that hasn't yet been saved,Rails knows that it needs to be created. So, the form_for generates a formTag that looks like this

creating a new project, and this time see the result, then go into the Hello project to open the Gemfile file, in the first line there is a: source ' https://rubygems.org/' Change to our domestic mirror source:[Plain]View Plaincopyprint? SOURCE ' http://ruby.taobao.org/' There is no problem installing bundles at this time:[Plain]View Plaincopyprint? Gem Install bundle You need to create a new controller: Say Specific action: Hello[Plain]View Plaincopyprint?

First go to the management page of the blog Park:By observing the A-jax request, it is found that the blog's classification (categories) is a JSON-formatted data:So I climbed the categories first. Through the various categories of pages to crawl the address, browse the volume, open a category page:Check Web pageThis gives you the address and number of visitors to each blog.On the code, some other issues are commented out in the code:Import TimeImportRequestsImportJSONImportRe fromSeleniumImportW

MySQL transactions and views, MySQL transaction views 　　　　　　　　　　　　　　　　Transactions 1. Concept A set of one or more SQL statements!Transactions: a collection of operations. They are born together. Either the execution is successful or the execution fails.2. Transaction Features ACIDA: The Atomicity is complete and inseparable. Atomicity: the operations in a transaction are either executed or not executed! C:

Creating Lists in SharePoint 2010 One of the most powerful features of SharePoint from an end user's perspective is the degree of creating and customizing lists, views, and items. lists store data. sharePoint 2010 nodes des a large number of list templates that can be used as they are or as a starting point to tailor them to fulfill your specific business requirements. lists have a set of configurable settings that apply to all lists, as well as custo

Python automatically clicks the instance code of blog views, and python views Train of Thought Source Today, it was an occasional opportunity to hear others talking about the current "Click farming" behavior, which inspired my curiosity. Then I read that the requests module is useful to me and wrote a simple test case. The magic of discovering this trick actually works. What are you waiting for? Click it. P

corresponding to rabl: Create a new empty folder blogs under APP/views: Create two new files under APP/views: Index. JSON. rabl and show. JSON. rabl. Show. JSON. rabl: Object @ blog Attributes: ID,: title,: Author,: Content Index. JSON. rabl: Collection @ blogsExtends "blogs/Show" 7. Configure route In routes. RB: Rails. application. routes. Draw do Resources

pm.max_spare_servers=1000 Passenger's optimized configuration nginx. conf ): Passenger_max_pool_size 300; // The maximum allowed value of 4 GB memory, and passphrase cannot be started after append. Create a Test App using a Rails script: Rails new dummy Ruby on Rails code: //app/controller/test_controller.rb classTestController defindex sleep(0.

: 3000/greeting/index and finds that Ruby prompts you where the index is located. Greeting indicates the Controller index. The default action is index. You can enter http: // localhost: 3000/greeting/without writing it.Use controller to display your wordsDefine the action in greeting_controller.rb of APP "ControllersDef IndexRender: text => "EndRefresh the browser and you will have your words.3. Bind the Controller to the view and modify the index method in the controller.Def Index@ Welcome_mess

SQL: The Role of views; SQL views [Database] ☆★SQL: The Role of views When complicated services are involved in the actual development process of a project, we need to use an intermediate table for data connection. Some people will say, can I use Hibernate to associate the primary and Foreign keys? Many-to-many, many-to-one, one-to-one, and so on. Using the pri

1. Sharing data between views In addition to passing the specified data in a single view, it is sometimes necessary to pass in the same data in all views, that is, we need to share the data in different views. To achieve this, you need to use the method of the View factory share . The global help function is view response similar to returning an instance if an

1. Share data between views In addition to passing the specified data in a single view, it is sometimes necessary to pass the same data across all views, that is, we need to share data in different views. To do this, you need to use the method of the View factory share . Global help functions view and response similar, if passed in arguments, returns Illuminate

Mysql-views, stored procedures, triggers, and mysql-Views I. VIEW A view is a virtual table and does not store any data. Only the running time contains the dynamically retrieved data. Eg: SELECT sid, name, sex, s_num FROM student, school WHERE sid = 2 AND student. sid = scholl. sid; This simple query involves two tables. Therefore, anyone who needs this data must be familiar with the two tables and their re

archive to that file. V$backup The table space is in hot backup mode. alter TABLESPACE XX Begin backup will record the corresponding SCN. The V$statname database dynamically counts the information, with the information name and ID, used in conjunction with V$sesstat. V$sesstat the values of some dynamic statistics, such as user commits,opened cursors Current,redo size, and so on, Select Name,value from V$sesstat,v$statnamewhere V$statname. Statistic#=v$sesstat. Statistic# and v$statname.name li

MVC prints a table and places the table content in some views for printing. mvc viewsMVC prints the table and places the table content to some views for printing. Suppose there is a lot of content on a page, and we just want to print the table content on the page, window. the print () method prints the content of the entire page. How can we print only the content of the table? Since window. print () only

How to learn ruby from 0 on Rails (stroll) Ruby is a programming language, and Ruby on Rails is a web framework for Ruby, referred to as rails. There are a lot of people who are interested in Rails, but don't know where to start and what to learn, because they have answered similar questions on multiple occasions, so t

Images can be said to be a critical part of any application. From social networks to a simple bug tracker, images play an important role. Managing images, however, is not an easy task and requires a lot of time and energy to plan ahead. This article demonstrates how to achieve this goal in rail. How do you handle your images and create multiple versions in the background? How to improve the performance of the page by compressing the image without compromising the image quality? These are the on

. V $ SQL: executed SQL statement. V $ lock: What kind of locks are occupied by those sessions, what kind of locks are applied for, and whether the session is blocked by other sessions. Which objects are locked by V $ locked_object. V $ session_wait: Select * from V $ session_wait where wait_class! = 'Idle': Check the currently waiting session, such as the blocked session. V $ session_wait_history: the historical information of session waiting. Only the latest 10 records are saved. V $ active_se

, you can enter the HTTP parameter (for example, blog.rapidred.com/edit?article=12345) in the URL, and then display the edit form. Because each blog entry has its own URL, click on the link or enter the URL directly, you can use the HTTP command to read, modify or delete content. In short, REST can: Naming resources on the WEB with TCP/IP Querying and manipulating these resources with HTTP Constructs data using text-based, standard message formats, such as XML or HTML Ruby on

Develop an advanced view of the iphone Building views and forms The IPhone and ipod touch make mobile Safari a popular American mobile browser. Although it is more than enough to present a regular web page with Mobile Safari, many web developers have created an application version for the IPhone. This article is part 3rd of the "using Ruby on Rails and Eclipse to develop IPhone apps" series, which describ