Agile web development with rails: a Pragmatic guide by Dave Thomas, David Heinemeier Hansson, Leon Breedt, Mike

By Dave Thomas, David Heinemeier Hansson, Leon Breedt, Mike Clark, Thomas Fuchs, Andrea Schwarz

Rails is a full-stack, open resource net framework that allows you to create full-featured, subtle web-based functions, yet with a twist... an entire Rails software most likely has much less overall code than the XML you would have to configure an identical program in different frameworks. With this ebook you will the best way to use "ActiveRecord" to attach enterprise items and database tables. not more painful object-relational mapping. simply create what you are promoting gadgets and permit Rails do the remaining. you will the best way to use the "Action Pack" framework to path incoming requests and render pages utilizing easy-to-write templates and parts. See how one can make the most the Rails carrier frameworks to ship emails, enforce net companies, and create dynamic, user-centric web-pages utilizing integrated Javascript and Ajax help. There are large chapters on checking out, deployment, and scaling. you will see how effortless it really is to put in Rails utilizing your net server of selection (such as Apache or lighttpd) or utilizing its personal incorporated net server. you may be writing functions that paintings together with your favourite database (MySQL, Oracle, Postgres, and extra) very quickly in any respect. you will create a whole on-line shop software within the prolonged educational part, so you will see how a whole Rails program is developed---iteratively and speedily. Rails strives to honor the Pragmatic Programmer's "DRY precept" through heading off the additional paintings of configuration documents and code annotations. you could increase in real-time: make a metamorphosis, and watch it paintings instantly. fail to remember XML. every thing in Rails, from templates to manage stream to enterprise common sense, is written in Ruby, the language of selection for programmers who wish to get the activity performed good (and go away paintings ontime for a change). Rails is the framework of selection for the hot iteration of internet 2.0 builders. Agile net improvement with Rails is the e-book for that new release, written through Dave Thomas (Pragmatic Programmer and writer of Programming Ruby) and David Heinemeier Hansson, who created Rails.

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Yml file. This is convenient, as it means that different developers will each use their own usernames when connecting. However, we’ve had reports that with some combinations of MySQL, database drivers, and operating systems, leaving these fields blank makes Rails attempt to connect to the database as the root user. localdomain’, put an explicit username in these two fields. Create the Maintenance Application OK. All the ground work has been done. We set up our Depot application as a Rails project.

However, before we turn that page, we have to answer just one more question. What should we do first? I like to work with the customer so we can jointly agree on priorities. In this case, I’d point out to her that it’s hard to develop anything else until we have some basic products defined in the system, so I’d suggest spending a couple of hours getting the initial version of the product maintenance functionality up and running. And, of course, she’d agree. Prepared exclusively for Rida Al Barazi Report erratum 48 Chapter 6 Task A: Product Maintenance Our first development task is to create the web interface that lets us maintain our product information—create new products, edit existing products, delete unwanted ones, and so on.

This is dangerous, because password information sits in a file in a web-accessible directory. A small server configuration error could expose your password to the world. The approach of embedding connection information into code is also inflexible. One minute you might be using the development database as you hack away. Next you might need to run the same code against the test database. Eventually, you’ll want to deploy it into production. Every time you switch target databases, you have to edit the connection call.

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