Ruby on Rails

On Aug 8, 2013, at 2:08 PM, Nick Khamis <symack@gmail.com> wrote:

> Looking through the asset pipeline documentation, I was able to make everything
> work as expected. Really nice!! However, not for images that we are loading using
> a variable (i.e., wine.picture) which basically resolves to (bold_nine.jpg). First
> question, is it possible to use (asset_path) and pass variables?
>
> From the little bit of searching I found that (asset_path) does not support variables,
> and we should use (asset_url) instead. My concern is production env and the fingerprinting
> of images. Some observation:
>
> $('#pic').attr('src', "<%= asset_url('block_nine.jpg')%>") ------correctly yields-----> $('#pic').attr('src', "/assets/block_nine-b3cebc2ed66a8605caae943eacdd358d.jpg")
> $('#pic').attr('src', "<%= asset_url('" + wine.pictures + "')%>") ---------incorrectly yields-------> $('#pic').attr('src', "/" + wine.pictures + "")
>

can't tell for sure here - but it seems you might have the " and ' reversed in the above?

you have the exterior quotes around the <%=..%> so you just need the string value produced by the asset_url, so try:

$('#pic').attr('src', "<%= asset_url(wine.pictures)%>")


> Error in console:
>
> ActionController::RoutingError (No route matches [GET] "/block_nine.jpg")
>
> That being said,
>
> $('#pic').attr('src', "<%= asset_url('assets/" + wine.picture + "')%>");
> $('#pic').attr('src', "<%= asset_path('assets/" + wine.picture + "')%>");
>
>
> both work in development and production however, I think at that point I am serving up the images from
> assets and not the web server using the fingerprints as intended.
>
> Your help is greatly appreciate,
>
> Nick.
>
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