Learn how to use asset pipeline to add image to a Ruby on Rails application. Images in an application are generally either part of the interface (such as backgrounds, buttons, or icons) or user-provided images (such as product images or photographs). Each type is handled differently. Rails has an image_tag helper method to make adding an image to a template easier. There is also a special stylesheet helper method which is useful for referencing images inside stylesheets.
- [Narrator] In this movie, we will learn…to work with asset pipeline to add images…to our applications.…Images managed by asset pipeline should be kept…inside /app/assets/images.…If you weren't using asset pipeline,…then you would put them in /public/images.…Those locations are similar to what we used…for stylesheets and JavaScripts.…However, images are different…than stylesheets and JavaScripts.…A web application has images which are important…for the application's interface…such as backgrounds, buttons, or icons.…But web applications also often use…images provided by users.…
Those users don't have to just be the general public.…They also could be admins who are uploading…product images, photographs, or images meant…to accompany paragraphs of text.…As a general rule of thumb,…you should put your core application UI images…inside asset pipeline, that is,…inside /app/assets/images.…But any user-supplied images that are related to content…should go in /public/images and not be managed…by asset pipeline.…If you want your application to allow users…
Author
Released
9/28/2016- Creating and configuring a new Ruby on Rails project
- Generating controllers and views
- Handling server requests
- Using different types of routes
- Rendering and viewing templates
- Generating migrations and models
- Creating, updating, and deleting records
- Finding records with queries
- Understanding relationship types
- Writing controllers for CRUD
- Working with layouts and helpers
- Managing application assets
- Building forms
- Validating data
- Authenticating users
Skill Level Beginner
Duration
Views
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Introduction
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Welcome1m 4s
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1. What Is Ruby on Rails?
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2. Get Started
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Create a project6m 45s
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File structure of a project4m 28s
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Configure a project10m 15s
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Access a project3m 38s
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Routes9m 12s
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Experiment on your own1m 17s
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3. Controllers, Views, and Dynamic Content
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Redirect actions6m 4s
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View templates7m 4s
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Instance variables3m 56s
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Links6m 11s
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URL parameters7m 24s
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4. Databases and Migrations
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Introduction to databases7m 53s
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Create a database2m 27s
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Migrations3m 4s
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Generate migrations4m 3s
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Generate models7m 58s
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Run migrations8m 22s
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Migration methods7m 47s
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Solve migration problems5m 41s
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5. Models and ActiveRecord
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Model naming5m 52s
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Model attributes2m 51s
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The Rails console3m 17s
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Create records4m 53s
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Update records3m 16s
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Delete records2m 29s
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Find records5m 48s
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Query methods: Conditions7m 39s
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Named scopes8m 26s
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6. Associations
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Relationship types7m 2s
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One-to-one associations9m 42s
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One-to-many associations7m 54s
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Many-to-many associations: Rich10m 17s
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Traverse a rich association5m 24s
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7. CRUD, REST, and Resourceful Routes
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CRUD6m 56s
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REST5m 51s
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Resourceful routes6m 54s
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Resourceful URL helpers4m 5s
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8. Controllers and CRUD
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Read action: Index6m 31s
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Read action: Show5m 22s
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Form basics5m 13s
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Create action: New4m 54s
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Create action: Create5m 27s
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Strong parameters6m 33s
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Update actions: Edit/update7m 53s
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Flash hash7m 28s
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9. Layouts, Partials, and View Helpers
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Layouts8m 33s
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Partial templates4m 43s
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Text helpers4m 32s
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Number helpers4m 22s
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Date and time helpers3m 39s
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Custom helpers5m 22s
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Sanitization helpers8m 53s
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10. Assets
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Asset pipeline4m 49s
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Stylesheets12m 1s
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JavaScript7m 33s
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Images6m 22s
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11. Forms
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Form helpers8m 35s
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Form options helpers8m 45s
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Date and time form helpers6m 16s
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Form errors7m 36s
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12. Data Validation
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Validation methods11m 37s
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Write validations12m 7s
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Validates method3m 15s
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Custom validations6m 12s
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13. Controller Features
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Cookies3m 10s
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Sessions6m 50s
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Controller filters10m 45s
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Logging7m 40s
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14. User Authentication
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Secure passwords8m 35s
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Login and logout8m 29s
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Restrict access7m 36s
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15. Improve the Simple CMS
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Challenge: AdminUser CRUD2m 44s
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Solution: AdminUser CRUD7m 56s
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Public area10m 35s
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Public area navigation6m 3s
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Nesting pages in subjects9m 44s
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Nesting sections in pages7m 37s
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Finishing touches3m 30s
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Conclusion
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Next steps1m 44s
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Video: Images