Using "link" breaks the app

[rajkumarGosavi]

Using "link" breaks the app

[jasonrclark]

Hi @rajkumar18, thanks for the detailed report and the code to reproduce the problem!

So the root cause of your application failing is in the index method. The para and first link line in that method both need a , at the end of them--the whole thing is one call to para, with the links as parameter.

So index should look like this:

def index
		para "Books I've read: ",
		link("by Mark Twain", :click =>"/twain"),
		link("by Kurt Vonnegut", :click => "/kv")
	end

(I also noticed in testing that the line with url 'kv'... should be url '/kv'... or the link to work properly (note the slash inside the string).

The error message you got was not very helpful. I totally didn't understand why it was failing until I debugged for several minutes! I'll see if I can make that error message clearer for the future, but in the meantime adding those commas and fixing that forward slash should get your app running.

[jasonrclark]

@rajkumar18 Ah, that's a great question. That was actually a bug in Shoes itself that you tripped across. It was supposed to just log a warning, but a bug at that point threw an exception which fouled up the main UI loop.

Anyone making a similar syntax mistake from here forward should get a message instead of what you saw after #1570 gets released (hopefully soon!)

[rajkumarGosavi]

Thank you for your reply. I will make changes asap. Also is the following code was taken from the book available on the official site. So is there any other resource I can follow?

[jasonrclark]

Is the link you followed from the official site (http://shoesrb.com) pointed to http://evc-cit.info/cit020/nks.pdf? Looking at page 31 in that doc I see this, which includes the commas as needed:

The official site is the best answer I have for resources, but I'm looking to give it a refresh soon and will see if there are other things out there that could be linked to.

[rajkumarGosavi]

Thank you. I realize it was a syntax mistake.
One question is, why did shoes didn't warned or terminated the program while executing?
Instead it completely messed up the GUI.