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I need to configure some URLs for my Play application so I added them to application.conf:
application.url="http://www.mydomain.com"
application.url.images="http://www.anotherdomain.com"
application.url.images.logo="${application.url.images}/logo.png"
...
Here below is the code I use in my views to access the entries above:
@(title: String)
@import play.api.Play.current
<!DOCTYPE html>
<html>
...
<img src="@{ currrent.configuration.getString("application.url.images.logo") }" />
...
</html>
Well... I'm getting crazy since whenever I run the application I always get the following error message:
/home/j3d/Projects/test-app/conf/application.conf: 14-19: application.url.images.logo has type OBJECT rather than STRING
Any idea? Am I missing something? Or is it a bug?
Thank you very much.
326
Config in Typesafe Configuration library used in Play represents JSON-like structure. Dot notation is syntax sugar to create nested objects ({ ... } in JSON). For example:
application.url="http://example.com"
application.images.logo="http://example.com/img/1.png"
application.images.header="http://example.com/img/3.png"
is equivalent to following JSON:
{
"application": {
"url": "http://example.com",
"images": {
"logo": "http://example.com/img/1.png",
"header": "http://example.com/img/3.png"
}
}
}
In your example you first assign string to application.url, then trying to add keys to it (key url in application.url.images), like it is JSON object, not string. I don't know exact behavior of Typesafe Config in this case, and why it don't raise error immediately when reading config file.
Try rearranging hierarchy of config keys, i.e.:
application.url.prefix="http://www.mydomain.com"
application.url.images.prefix="http://www.anotherdomain.com"
application.url.images.logo="${application.url.images}/logo.png"
Here application.url will be object with keys prefix and images, and application.url.images will be object with keys prefix and logo.
146
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