CODEWITHSUNDEEP
ruby-on-rails
umezo
umezo

Reputation: 1579

Saving a string with erb data in the model

I currently save code like below in my user model.

User.where(type: "supercool").each do |user|
    if user.score == 100
        user.message = "Hello #{user.name}, you now have #{user.points} points!".html_safe
    elsif user.address == "New York"
        user.message = "You live in the same town as #{Person.where(address:"New York").first.name}"
    user.save
end

I save these messages in my model, and print them out in the view by just calling User.find(params[:id]).messages in the controller.

The actual model code is much longer, as there are many unique messages based on different scenarios.

While this works, I would now like to add a link_to to objects that are mentioned in the messages.

For the first message, I want to save it so that when I send it to the view, it's in the form of 

Hello <%= link_to user.name, user_path(user.id) %>, you now have <%= link_to user.points, leaderboard_path %> points!

I tried the below, but it doesn't work.

User.where(type: "supercool").each do |user|
    if user.score == 100
        user.message = "Hello #{link_to user.name, user}, you now have #{link_to user.points, leaderboard_path} points!".html_safe
    user.save
end

How can I save erb in my string?

Upvotes: 0

Views: 144

Answers (2)

usha
usha

Reputation: 29349

How about this? Use html tags instead of using link_to 

  User.where(type: "supercool").each do |user|
    if user.score == 100
      user.message = "Hello <a href=#{Rails.application.routes.url_helpers.user_path(user)}>#{user.name}</a>, you now have <a href=#{Rails.application.routes.url_helpers.leaderboard_path}>#{user.points}</a> points!".html_safe
      user.save
   end
 end

And in your view, Just do

<%= user.message %>

Upvotes: 1

Bruno Campos
Bruno Campos

Reputation: 2188

This is not a very good pratice.

You can like:

class Model < ActiveRecord::Base
  include Rails.application.routes.url_helpers

  def example
    ActionController::Base.helpers.link_to user.name, user
  end 
end

But using a helper or a erb template to show this to the user seems the best way.

Upvotes: 1

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