Ruby On Rails Key Generator

13.12.2020 admin

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Methods

Getting Started with RailsThis guide covers getting up and running with Ruby on Rails.After reading this guide, you will know: How to install Rails, create a new Rails application, and connect your application to a database. The general layout of a Rails application. The basic principles of MVC (Model, View, Controller) and RESTful design. How to quickly generate the starting pieces of a Rails. Generate a Rails Secret Key. ‘Your secret key is used for verifying the integrity of signed cookies.’. Hashrocket has been an industry leader in Ruby on Rails since 2008. Rails is a core skill for each developer at Hashrocket and we'd love to take a look at your project. Ruby on Rails - Generators - Ruby provides a script called Generator. This script can be used to generate many useful items in Rails. Most important generators are listed below.

Thor::Actions

Public Class methods

Returns the base root for a common set of generators. This is used todynamically guess the default source root.

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Returns the default source root for a given generator. This is usedinternally by rails to set its generators source root. If you want tocustomize your source root, you should use source_root.

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Tries to get the description from a USAGE file one folder above the sourceroot otherwise uses a default description.

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Invoke a generator based on the value supplied by the user to the givenoption named “name”. A class option is created when this methodis invoked and you can set a hash to customize it.

Examples

The example above will create a test framework option and will invoke agenerator based on the user supplied value.

For example, if the user invoke the controller generator as:

The controller generator will then try to invoke the following generators:

Notice that “rails:generators:test_unit“ could be loaded aswell, what Rails looks for is the first andlast parts of the namespace. This is what allows any test framework to hookinto Rails as long as it provides any of thehooks above.

Options

The first and last part used to find the generator to be invoked areguessed based on class invokes hook_for, as noticed in the exampleabove. This can be customized with two options: :base and :as.

Let’s suppose you are creating a generator that needs to invoke thecontroller generator from test unit. Your first attempt is:

The lookup in this case for test_unit as input is:

Which is not the desired the lookup. You can change it by providing the :asoption:

And now it will lookup at:

Similarly, if you want it to also lookup in the rails namespace, you justneed to provide the :base value:

And the lookup is exactly the same as previously:

Switches

All hooks come with switches for user interface. If the user don’twant to use any test framework, he can do:

Or similarly:

Boolean hooks

In some cases, you want to provide a boolean hook. For example, webratdevelopers might want to have webrat available on controller generator.This can be achieved as:

Then, if you want, webrat to be invoked, just supply:

The hooks lookup is similar as above: /node-js-generate-encryption-key.html.

Custom invocations

You can also supply a block to hook_for to customize how the hookis going to be invoked. The block receives two arguments, an instance ofthe current class and the klass to be invoked.

For example, in the resource generator, the controller should be invokedwith a pluralized class name. But by default it is invoked with the samename as the resource generator, which is singular. To change this, we cangive a block to customize how the controller can be invoked.

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Convenience method to get the namespace from the class name. It’s thesame as Thor default except that the Generator at the end of the class isremoved.

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Remove a previously added hook.

Examples

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Returns the source root for this generator using default_source_root asdefault.

[ show source ]

Protected Class methods

Small macro to add ruby as an option to the generator with proper defaultvalue plus an instance helper method called shebang.

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Use Rails default banner.

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Sets the base_name taking intoaccount the current class namespace.

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Return default aliases for the option name given doing a lookup inRails::Generators.aliases.