Converting integer type to string rails

Question

I'm using task model, which has 3 fields: title:string, completed:boolean, priority:integer

I want to transform integer values(1,2,3) to string values(Next,Now,Later) in priority.

I wrote to model:

class Task < ApplicationRecord
    belongs_to :user
    PRIORITIES = [
        ['Later', 1],
        ['Next', 2],
        ['Now',3]
    ]

And also in form:

= f.input :priority, Task::PRIORITIES

Everything should work but I get an error:

No implicit conversion of Symbol into Integer in this line

How can I fix it?

I think you can do f.select :priority, Task::PRIORITIES

Nikhil
– Nikhil

2016-10-23 18:05:52 +00:00
Commented Oct 23, 2016 at 18:05 — Nikhil
– Nikhil, Commented Oct 23, 2016 at 18:05

C dot StrifeVII · Accepted Answer · 2016-10-23 18:02:38Z

1

Try using enums for this, like this

class Task < ApplicationRecord
    belongs_to :user
    enum priority: { later: 1, next: 2, now: 3}
 end

answered Oct 23, 2016 at 18:02

C dot StrifeVII

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3 Comments

Damir Nurgaliev Over a year ago

how should I change my form after this? It works, but I need a dropdown menu in my simple form

Damir Nurgaliev Over a year ago

Ok, finally I did it. Thanks a lot :)

C dot StrifeVII Over a year ago

Sorry I missed your first comment, I'm glad you got it working though.

moveson · Accepted Answer · 2016-10-23 20:19:11Z

0

To create a dropdown menu with an enum, you need something like this:

<%= f.select :priority, Effort.priorities.keys.map { |priority| [priority.titleize, priority] }, {prompt: true}, {class: "dropdown-select-field"} %>

As a bonus for using enum, you can call, for example:

Task.low on the class, or task.next? on an instance.

answered Oct 23, 2016 at 20:19

moveson

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