Rails course day 7
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The document outlines a Ruby on Rails course agenda covering file/image uploads, delayed background jobs, and internationalization (i18n). It includes specific code snippets for implementing Paperclip for file uploads, validations, and i18n configurations. Additionally, it discusses background job management with Sidekiq, using Redis, and making HTTP requests with the Unirest gem.
![Install and use
paperclip
[Gemfile]gem "paperclip", "~> 4.3”
[Model.rb]
has_attached_file :avatar, styles: { medium: "300x300>", thumb:
"100x100>" }, default_url: "/images/:style/missing.png"
[Model.rb] #Validation
validates_attachment_content_type :avatar, content_type: /
Aimage/.*Z/
[Migration] add_attachment :<model>, :avatar
remove_attachment :users, :avatar
[view] = image_tag object.avatar.url(:version)
Example: = image_tag @user.avatar.url(:medium)](https://image.slidesharecdn.com/rails07-150918090155-lva1-app6891/85/Rails-course-day-7-4-320.jpg)
![Delayed /
Background Job
Sidekiq Vs resque
redis
nexmo
thread safety
[routes.rb]
require 'sidekiq/web'
mount Sidekiq::Web, at: '/sidekiq'](https://image.slidesharecdn.com/rails07-150918090155-lva1-app6891/85/Rails-course-day-7-8-320.jpg)
Rails course day 7
- 1. Ruby on Rails Course By @AlSayedGamal
- 2. File/image Upload, delayed background jobs and I18n Day 7
- 3. Agenda Paperclip and file/image upload ActiveJob (delayed_job, resque, sidkiq) i18n
- 4. Install and use paperclip [Gemfile]gem "paperclip", "~> 4.3” [Model.rb] has_attached_file :avatar, styles: { medium: "300x300>", thumb: "100x100>" }, default_url: "/images/:style/missing.png" [Model.rb] #Validation validates_attachment_content_type :avatar, content_type: / Aimage/.*Z/ [Migration] add_attachment :<model>, :avatar remove_attachment :users, :avatar [view] = image_tag object.avatar.url(:version) Example: = image_tag @user.avatar.url(:medium)
- 5. I18n locale/en.yml and t() I18n.locale default_url_options scope routes to locale
- 6. I18n en: someview key: “value” activerecord: models: user: “Dude” attributes: user: login: "Handle" = t(‘someview.key’) #value = t(‘.key’) #value * = User.model_name.human #Dude = User.human_attribute_name("login") #handle * = if same view en.yml view.haml
- 7. Sidekiq background jobs that works
- 8. Delayed / Background Job Sidekiq Vs resque redis nexmo thread safety [routes.rb] require 'sidekiq/web' mount Sidekiq::Web, at: '/sidekiq'
- 9. BackgroundREST Using Unirest HTTP request can take some time. gem ‘unirest’ response = Unirest.get “<apiurl>”, headers:{"X-Mashape-Key" => "APIKEY", "Accept" => “application/json"} parameters:{key: value}
- 10. Thank you!