Add a validation rule for content_type pin.image #1
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bachbui
commented
Feb 7, 2017
bachbui
commented
- Paperclip 4.0 requires a validation rule for file attachments
- Set this to accept common image types (jpg, png, gif)
- Paperclip 4.0 requires a validation rule for file attachments - Set this to accept common image types (jpg, png, gif)
| @@ -9,7 +9,7 @@ gem 'coffee-rails', '~> 4.2' | |||
| gem 'jquery-rails'# Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks | |||
| gem 'turbolinks', '~> 5' | |||
| gem 'jbuilder', '~> 2.5' | |||
| gem 'bootstrap-sass' | |||
| gem 'bootstrap-sass', '~> 3.2.0' | |||
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This makes your code more portable, as you need bootstrap 3 to run it. On systems that have an older version installed, your app will see that bootstrap is already installed but then will hit errors when it runs.
| @@ -1,4 +1,5 @@ | |||
| class Pin < ActiveRecord::Base | |||
| belongs_to :user | |||
| has_attached_file :image, :styles => { :medium => "300x300>", :thumb => "100x100>" } | |||
| validates_attachment_content_type :image, :content_type => ["image/jpg", "image/jpeg", "image/png", "image/gif"] | |||
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This is the validation rule which checks that the file being uploaded has one of the standard image content-types, so that someone would be prevented from uploaded a pdf for example. You'd probably want to add additional validation rules, like on the max file size, for example.
| @@ -1,6 +1,7 @@ | |||
| <p id="notice"><%= notice %></p> | |||
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| <p> | |||
| <%= link_to image_tag(@pin.image.url, class: 'media-object'), @pin.image.url, target: '_blank' %> | |||
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This is just to test that the image upload was working. You'd probably want to display a thumbnail version of the image instead what this is doing, which is showing the original.
