Crafting Rails 4 Applications, 2nd Edition: Expert Practices by JosǸ Valim

By JosǸ Valim

Prepare to work out Rails as you have got by no means obvious it ahead of. tips on how to expand the framework, switch its habit, and substitute entire parts to bend it in your will. 8 varied test-driven tutorials can assist you realize Rails' internal workings and get ready you to take on complex tasks with recommendations which are well-tested, modular, and simple to keep up. This moment version of the bestselling Crafting Rails purposes has been up to date to Rails four and discusses new themes reminiscent of streaming, mountable engines, and thread defense. Rails is likely one of the such a lot extensible frameworks available in the market. This pioneering publication deep-dives into the Rails plugin APIs and indicates you, the intermediate Rails developer, how one can use them to jot down larger net functions and make your daily paintings with Rails extra effective.

Show description

Read Online or Download Crafting Rails 4 Applications, 2nd Edition: Expert Practices for Everyday Rails Development PDF

Similar development books

Joint Attention: Communication and Other Minds: Issues in Philosophy and Psychology

It slow round their first birthday, young children start to have interaction in ''triadic'' interactions, i. e. interactions with adults that flip in particular on either baby and grownup together getting to an item of their atmosphere. well-known as a developmental milestone among psychologists for your time, joint awareness has lately additionally began to allure the eye of philosophers.

Trade and Development Report 1998

Each one version of this sequence examines developments within the overseas economic system with specific connection with constructing nations, evaluating present and earlier functionality and assessing clients for destiny improvement. This record makes a speciality of very important matters.

Sustainable Development of European Cities and Regions

Sustainable improvement has been the fundamental objective of the ecu Union because the Treaty of Amsterdam. After an in-depth research of the idea that, the publication is going directly to translate the idea that into manageable and tangible possibilities for city and nearby sustainable improvement. vast lists of standards and signs were built for added rationalization and aid.

Additional info for Crafting Rails 4 Applications, 2nd Edition: Expert Practices for Everyday Rails Development

Example text

Attribute_names += names end When we use class_attribute() for defining the names, it automatically works with inheritance. So if a class eventually inherits from our SampleMail fixture, it will automatically inherit all of its attribute names, too. After we run rake test, all tests should be green again, and our Mail Form implementation is finished. Whenever we need to create a contact form, we create a class that inherits from MailForm::Base, we define our attributes and the email headers, and we’re ready to go!

Ourselves. () method, under different circumstances. For instance, whenever we invoke form_for(@model), it checks whether the model is persisted. info report erratum • discuss Chapter 2. Building Models with Active Model • 26 request; if not, it should do a POST request. The same happens in url_for() when it generates a URL based on your model. In Active Record, the object is persisted if it’s saved in the database; in other words, if it’s neither a new record nor destroyed. () should always return false.

So if a class eventually inherits from our SampleMail fixture, it will automatically inherit all of its attribute names, too. After we run rake test, all tests should be green again, and our Mail Form implementation is finished. Whenever we need to create a contact form, we create a class that inherits from MailForm::Base, we define our attributes and the email headers, and we’re ready to go! To ensure it works exactly as we expect, let’s check the whole process with an integration test. 2 Integration Tests with Capybara In the previous chapter, we used Rails testing facilities to ensure a PDF was sent back to the client.

Download PDF sample

Rated 4.13 of 5 – based on 47 votes

About admin