A blog about software by Alexander Yaäkov Garber.

Resourceful URL Helpers in Rails

rails rest routes
Published on 31 Mar 2020

Verbs, URLs, Actions, and URL Helpers

Verb URL Action URL Helper
GET /subjects index subjects_path
POST /subjects create subjects_path
GET /subjects/:id show subject_path(:id)
PATCH /subjects/:id update subject_path(:id)
DELETE /subjects/:id destroy subject_path(:id)
GET /subjects/new new new_subject_path
GET /subjects/:id/edit/ edit edit_subject_path(:id)
GET /subjects/:id/delete delete delete_subject_path(:id)

Full path and URL helper

{controller: 'subjects', action: 'show', id: 5}

subject_path(5)

Examples

# /subjects/index
<%= link_to('All Subjects', subjects_path) %>

# /subjects?page=3
<%= link_to('All Subjects', subjects_path(page: 3)) %>

# /subjects/10
## @subject.id = 10
<%= link_to('Show Subject', subject_path(@subject.id)) %>

## .id is optional
<%= link_to('Show Subject', subject_path(@subject)) %>

# /subjects/10?format=verbose
<%= link_to('Show Verbose Subject',
    subject_path(@subject.id, format: 'verbose')) %>

# /subjects/10/edit/
<%= link_to('Edit Subject', edit_subject_path(@subject.id)) %>

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