The parameters available are defined by the image_processing gem and depend on the Representable? returns false you may want to link to Some file formatsĬan't be previewed by Active Storage out of the box (e.g. Before calling representation, check if theĪttachment can be represented by calling representable?. Representation on an attachment to display an image variant, or a 8 Displaying Images, Videos, and PDFsĪctive Storage supports representing a variety of files. Audio analysis provides duration and bit_rate attributes. Video analysis provides these, as well as duration, angle, display_aspect_ratio, and video and audio booleans to indicate the presence of those channels. Image analysis provides width and height attributes. You can check whether a blob has been analyzed by calling analyzed? on it. Analyzed files will store additional information in the metadata hash, including analyzed: true. 7 Analyzing FilesĪctive Storage analyzes files once they've been uploaded by queuing a job in Active Job. It's important to know that the file is not yet available in the after_create callback but in the after_create_commit only. open do | file | system '/path/to/virus/scanner', file. Have an avatar, define the User model as follows: Each record can have one file attached to it.įor example, suppose your application has a User model. The has_one_attached macro sets up a one-to-one mapping between records andįiles. 3 Attaching Files to Records 3.1 has_one_attached
RUBY ON RAILS GUIDE UPDATE
When converting an existing application to use public: true, make sure to update every individual file in the bucket to be publicly-readable before switching over.
Amazon S3 additionally requires that you have the s3:PutObjectAcl permission.
RUBY ON RAILS GUIDE HOW TO
See docs on how to enable public read permissions for Amazon S3, Google Cloud Storage, and Microsoft Azure storage services. Make sure your buckets are properly configured for public access. Gcs : &gcs service : GCS project : " " private_gcs : bucket : " " public_gcs : bucket : " " public : true Copy Implementing Support for Other Cloud Services.Integrating with Libraries or Frameworks.Cross-Origin Resource Sharing (CORS) Configuration.S3 Service (Amazon S3 and S3-compatible APIs).To generate guides for the Kindle, use the following rake task: Please set `WARNINGS=1` when generating guides to detect them. Particularly, titles get an ID generated from their content and this often leads to duplicates. If you want to see all the environment variables you can use to configure the generation script just run: `source/es`) and use the `GUIDES_LANGUAGE` environment variable:īundle exec rake guides:generate GUIDES_LANGUAGE=es If you want to generate guides in a language other than English, you can keep them in a separate directory under `source` (eg. This detects duplicate IDs and warns about broken internal links. It is also recommended that you work with `WARNINGS=1`. To force processing all the guides, pass `ALL=1`. To process `my_guide.md` and nothing else use the `ONLY` environment variable:īundle exec rake guides:generate ONLY=my_guideīy default, guides that have not been modified are not processed, so `ONLY` is rarely needed in practice. To generate all the guides, just `cd` into the `guides` directory, run `bundle install` and execute:
RUBY ON RAILS GUIDE INSTALL
To install the latest version of Bundler, simply run the `gem install bundler` command As of this writing, you must install Bundler 1.3.5 on your device. * (api_documentation_guidelines.html#fonts)īefore generating the guides, make sure that you have the latest version of Bundler installed on your system. * (api_documentation_guidelines.html#filenames) * (api_documentation_guidelines.html#example-code) * (api_documentation_guidelines.html#wording) Please have a look at these particular sections of the (api_documentation_guidelines.html): The guides and the API should be coherent and consistent where appropriate. Use the same typography as in regular text:
However, the generated HTML output will have the heading tag starting from ``.Ĭapitalize all words except for internal articles, prepositions, conjunctions, and forms of the verb to be: 
The title of every guide uses `h1` guide sections use `h2` subsections `h3` etc. The prologue should tell the reader what the guide is about, and what they will learn. There is comprehensive (), a ().Įach guide should start with motivational text at the top (that's the little introduction in the blue area). * About the conventions to be used in Rails documentation.Ĥ. This guide follows itself in a graceful loop, serving itself as an example. This guide documents guidelines for writing Ruby on Rails Guides.
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