Add rails image_tag with jQuery variable

Question

I am adding a rails image_tag with jQueryand I am trying to put a jQueryvariable in the image_tag.

var variable = 0;
$(targetPlayerElement).html('<%= image_tag @users[variable].profile_picture

I am getting undefined local variable or method `variable' error. What is the correct syntax to do this if you even can. thank you for all the help.

users is from the controller users = User.limit(5).order("RANDOM()") — jrocc
– jrocc, Commented May 31, 2017 at 15:54

Sebastián Palma · Accepted Answer · 2017-05-31 16:00:14Z

1

What about storing the content of your variable as pure Ruby and then use it in your image tag?

An example:

<div id="content"></div>
<% image = 'http://placekitten.com.s3.amazonaws.com/homepage-samples/408/287.jpg' %>
<script>$('#content').html('<%= image_tag image %>')</script>

answered May 31, 2017 at 16:00

Sebastián Palma

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1 Comment

Cary Swoveland Over a year ago

I agree that using compact first makes sense.

Gerry · Accepted Answer · 2017-05-31 15:53:47Z

0

You're mixing two things there, the var variable = 0 is javascript and the <%= image_tag @users[variable].profile_pictureis ruby. If you want them to be used together, the variablehas to be parsed by js like this.

var variable = 0;
$(targetPlayerElement).html("<%= image_tag @users[" + variable + "].profile_picture %>")

edited May 31, 2017 at 15:53

Gerry

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answered May 31, 2017 at 15:51

ramongr

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3 Comments

Gerry Over a year ago

I don't think this will work, since variable is set after <%= ... %> is computed.

jrocc Over a year ago

When i try that I get no implicit conversion of String into Integer error.

ramongr Over a year ago

@Gerry you're right @jrocc try and use only ruby ``` <% variable = 0 %> $(targetPlayerElement).html("<%= image_tag @users[" + variable + "].profile_picture %>") ```

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