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The first two sections of this series have already covered how to configure the Ruby on Rails development environment, and now it's time to get to the point!Part1. Pre-development Preparation The main task of this time is to develop the first rails program. In particular, this time I chose a (PAAs development platform), which is the Cloud 9 platform describ
considerable interest in the web community, however, its core architecture still follows the basic pattern found in J2EE. Developing a web application that separates the two frameworks is a reasonable method. Rails prefers clear code rather than configuration files, while the dynamic nature of Ruby generates a majorityMPs queueCode. Most rails frameworks are cre
, and you'll also be able to make it easy. To consume a Web Service based on the Rest API provided by a third party, like using the Model of basic data. Through search engines, you can find many similar articles that use rails for rapid development, such as creating a Blog system with Ruby on rails for 15 minutes. Ruby
Several solutions to improve Ruby on Rails performance: rubyrails Introduction The Ruby On Rails framework has received wide attention since it was proposed. Under the guidance of ideas such as "do not repeat yourself" and "convention is better than configuration, rails brin
(* ARGs) find_by_ SQL (SQL) exists? (ID) Create (attributes) Update (ID, attributes) update_all (updates, conditions Delete (ID) delete_all (Conditions) ... add_items build_to_items create_in_items find_all_in_items find_in_items has_items? items items = items_count remove_items
troublesome for me to wait for the publisher. Hello world is what we hope.(Note: many popular e-books and tutorials are also examples of such databases. For details, refer to rails cookbook, rails for Java developers, and rails recipes.Tutorials officially introduced: http://www.onlamp.com/pub/a/onlamp/2006/12/14/revi
was designed by senior web programmers ...... During their design, they considered many details that may be encountered in many web development projects ...... In addition, they have integrated their years of development experience into rails ...... Read the second part of the book ...... In order to realize how "convention over configuration convention is higher than configuration" and "dry-Don't repeat y
administrator (or via sudo) and open a terminal window. The following commands are required to be entered in this window. The dollar sign $ is the command prompt, followed by the direct input command and press ENTER.The first three commands update the list of packages, upgrade the currently installed packages, install new packages, and remove conflicting packages. This will keep your machine up to date. The final command is to restart the machine, which is a good practice to restart after a lot
rendering, regardless of whether or not tools are used.2. What scenarios is it not suitable? What fremework do you recommend in these scenarios? Which is it?It is not suitable for large-scale, read-only (mainly read-only) websites. Struts is recommended in this case because the knowledge base is rich (it should refer to documents and user groups ).3. Have you tried them in the Framework mentioned below? Which one do you prefer if you have tried it? Which one do you not like?Seam:Advantage: very
Several programming skills for accelerating Ruby on Rails, rubyrails Ruby is often praised for its flexibility. As Dick Sites says, you can "Program for programming ". Ruby on Rails extends the core Ruby language, but
builds MAC user can see "install Ruby on Rails-mac OS x" article, will keep updating. Linux users can see the "install Ruby on rails-ubuntu" article, which will be updated continuously. The above two installation tutorials are very complete and comprehensive, will let you less trample many mines, recommended, although
Ruby languages are often praised for their flexibility. As Dick Sites says, you can "program for programming." Ruby on Rails extends the core Ruby language, but it is Ruby itself that makes this extension possible. Ruby on
How to Improve Ruby On Rails Performance 1 Introduction to Introduction It is always said that Rails is so slow that it has become a common issue in the Ruby and Rails communities. However, this statement is not true. As long as you use
. 2.2 Write less Ruby This is my favorite step. My university computer science professor likes to say that the best code doesn't exist. Sometimes it takes other tools to do the task at hand. The most common is the database. Why, then? Because Ruby is not good at processing large datasets. Very, very bad. Remember, Ruby takes up very large memory. So for example
code doesn't exist. Sometimes other tools are required to complete the tasks at hand. Databases are the most commonly used. Why? Because Ruby is not good at processing large datasets. Very, very bad. Remember, Ruby occupies a very large amount of memory. For example, you may need 3 GB or more memory to process 1 GB of data. It takes dozens of seconds to recycle the three GB. A good database can process the
Build a Ruby On Rails platform using CentOS System CentOS6.5 x64 Ruby On Rails is an open-source Web framework written in Ruby, similar to J2EE and PHP. Ruby On Rails is a very beautifu
Ruby on Rails (also known as rails) is a ruby framework for Internet applications that support databases. I've now used Rails for two different applications and involved two other associated programs. For the upcoming new book Java to Ru
neat and exception.A very effective solution is to enforce type checking and assertions for some important types of parameters, especially API. For example, on Airbnb, we use a validation gem to detect the type of all required variables in code, similar to assertions like "Validate Count Is_a Integer".Second, many people are ActiveRecord smattering on the Ruby on Rails. ActiveRecord is probably one of the
Learning and developing the Ruby on Rails application process is done on the local computer. That is, you need to create a Rails project on your local computer, run it, and then learn or do real development. Either way, you can install all the tools for the rails project directly on your local computer, and then run th
increasing productivity by 5 to 10 times, because hammers have evolved for thousands of years. However, comparing Ruby on Rails with Java frameworks for various general purposes is not essential. By fundamentally changing the nature of tools, we can increase productivity by 10 times in some aspects. Nowadays, professional manufacturers can use a nail gun to pin a lot of nails within the time when a hammer
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