if statement syntax error when attempting to embed meta tag

Question

<%= if @meta_leeds == "leeds" %>
  <meta property="og:image" content="http://www.some.link/to/image"/>
<% end %>

I want to embed a specific meta tag only on one page of my rails application. I defined :

@meta_leeds = "leeds"

in the pages' controller and it will display the string when put between a h1 tag but it will not output the meta tag based on the outcome of the above if statement.

What am i doing wrong?

`<% if @meta_leeds == "leeds" %>` - you don't need to output the `if` statement — Richard Peck, Jan 29 '16 at 11:31
It still gives a syntax error. i've changed the code to : `<% @meta_leeds == "leeds" %><% end %>` — Louis Jones, Jan 29 '16 at 12:15

score 0 · Answer 1 · answered Jan 29 '16 at 12:18

0

<% if @meta_leeds == "leeds" %>
  <meta property="og:image" content="http://www.some.link/to/image"/>
<% end %>

Just remove the = (and only the =) from the statement.

answered Jan 29 '16 at 12:18

Matt

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Great, this seems to have worked! But i'm confused as I thought ' = ' was meant for assigning a value to a variable and ' == ' was a comparison operator. Why does this work as a definition operator rather than a comparison operator? – Louis Jones Jan 29 '16 at 12:23
@LouisJones It doesn't, you're confusing erb and Ruby. – Dave Newton Jan 29 '16 at 13:11

score 0 · Answer 2 · answered Jan 29 '16 at 13:09

So i managed to embed the meta tag by checking the title rather than if the variable that was in a controller function was present.

Here is the final working code :

<% if yield(:title) == "Leeds" %>
  <meta property="og:image" content="http://www.some.link/to/image"/>
<% end %>

if statement syntax error when attempting to embed meta tag

2 Answers2