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Created By: swaz_ahmed Created at: 06-18-2024
Tags: ror Active Storage
File uploading is a crucial feature for many web applications, enabling users to share images, documents, and other files. In Ruby on Rails, Active Storage provides a convenient way to handle file uploads, offering integration with cloud services like Amazon S3 and Azure Blob Storage. In this guide, we'll dive deep into mastering file uploads using Ruby on Rails Active Storage, covering everything from setup to advanced configurations.
To start using Active Storage, add it to your Gemfile:
gem 'active_storage'
Then, install the gem:
bundle install
Next, run the migrations to set up the necessary tables in your database:
rails active_storage:install rails db:migrate
amazon: service: S3 access_key_id: <%= Rails.application.credentials.dig(:aws, :access_key_id) %> secret_access_key: <%= Rails.application.credentials.dig(:aws, :secret_access_key) %> region: us-east-1 bucket: your_bucket_name
Replace access_key_id, secret_access_key, region, and bucket with your AWS credentials and bucket name.
To enable file uploads for a model (e.g., Post
), use the has_one_attached
or has_many_attached
method in your ActiveRecord model:
class Post < ApplicationRecord has_one_attached :image end
Integrate file upload functionality into your application's forms using Rails form helpers. Here's an example form for creating a new Post with an image upload field:
<%= form_with(model: post, local: true) do |form| %> <%= form.label :title %> <%= form.text_field :title %> <%= form.label :content %> <%= form.text_area :content %> <%= form.label :image, 'Upload Image' %> <%= form.file_field :image %> <%= form.submit 'Create Post' %> <% end %>
Step 5: Handling File Uploads in Controllers
In your controller action (e.g., create method in PostsController), permit the image parameter and save the record:
class PostsController < ApplicationController def create @post = Post.new(post_params) if @post.save redirect_to @post, notice: 'Post was successfully created.' else render :new end end private def post_params params.require(:post).permit(:title, :content, :image) end end
To display uploaded images within your views, utilize the url_for helper provided by Active Storage:
<% if @post.image.attached? %> <%= image_tag url_for(@post.image) %> <% end %>
In this comprehensive guide, we've explored the foundational aspects of integrating and mastering file uploads using Ruby on Rails Active Storage. From initial setup and configuration of storage services to implementing file upload forms and displaying uploaded content, you now have the tools to enhance your application's user experience with robust file management capabilities. Experiment with additional features such as direct uploads and image transformations to further customize and optimize your file uploading workflow.
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