Generation hangs

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Issue by devatotech Saturday Nov 16, 2013 at 15:14 GMT Originally opened as https://github.com/voormedia/rails-erd/issues/63

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It just chills here for hours and the pdf if empty

Generating entity-relationship diagram for 16 models...

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Comment by kpgdev Thursday Nov 21, 2013 at 15:06 GMT

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yup - i am seeing this. i think it's a mavericks & 2.34 issue....

here's the output from ctrl c:

/.rvm/gems/ruby-2.0.0-p247/gems/ruby-graphviz-1.0.9/lib/graphviz/utils.rb:62:in read' /.rvm/gems/ruby-2.0.0-p247/gems/ruby-graphviz-1.0.9/lib/graphviz/utils.rb:62:inblock in output_and_errors_from_command' /.rvm/gems/ruby-2.0.0-p247/gems/ruby-graphviz-1.0.9/lib/graphviz/utils.rb:59:in output_and_errors_from_command' /.rvm/gems/ruby-2.0.0-p247/gems/ruby-graphviz-1.0.9/lib/graphviz/utils.rb:73:inoutput_from_command' /.rvm/gems/ruby-2.0.0-p247/gems/ruby-graphviz-1.0.9/lib/graphviz.rb:589:in output' /.rvm/gems/ruby-2.0.0-p247/gems/rails-erd-1.1.0/lib/rails_erd/diagram/graphviz.rb:192:inblock in class:Graphviz' /.rvm/gems/ruby-2.0.0-p247/gems/rails-erd-1.1.0/lib/rails_erd/diagram.rb:142:in instance_eval' /.rvm/gems/ruby-2.0.0-p247/gems/rails-erd-1.1.0/lib/rails_erd/diagram.rb:142:insave' /.rvm/gems/ruby-2.0.0-p247/gems/rails-erd-1.1.0/lib/rails_erd/diagram.rb:120:in create' /.rvm/gems/ruby-2.0.0-p247/gems/rails-erd-1.1.0/lib/rails_erd/diagram.rb:74:increate' /.rvm/gems/ruby-2.0.0-p247/gems/rails-erd-1.1.0/lib/rails_erd/tasks.rake:41:in `block (2 levels) in <top (required)>'

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Comment by nicholasjhenry Friday Nov 22, 2013 at 16:57 GMT

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Workaround:

rake erd filetype=dot
dot -Tpdf erd.dot > erd.pdf

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Comment by kpgdev Friday Nov 22, 2013 at 17:24 GMT

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awesome thanks

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Comment by rrotteveel Monday Nov 25, 2013 at 15:56 GMT

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Thanks @nicholasjhenry, this worked for me too. And I have the same output as @kpgdev, and I'm also running Mavericks & 2.34.

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Comment by darren-james Wednesday Dec 25, 2013 at 04:32 GMT

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Me too. I've been missing being able to use the diagrams for a couple of months since upgrading. Perhaps you could put this advice on the main page?

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Comment by rockaBe Thursday Feb 06, 2014 at 23:25 GMT

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thanks a lot @nicholasjhenry ! Your workaround did the trick for me as well :+1:

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Comment by caseywatts Thursday Feb 20, 2014 at 21:56 GMT

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:+1: me too!

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Comment by charlesdg Wednesday Feb 26, 2014 at 11:43 GMT

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+1 for @nicholasjhenry

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Comment by okuramasafumi Friday Feb 28, 2014 at 04:14 GMT

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Thanks @nicholasjhenry it works perfect.

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Comment by barttenbrinke Wednesday Apr 23, 2014 at 16:34 GMT

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Thanks!

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Comment by joshuapinter Wednesday Apr 23, 2014 at 16:36 GMT

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:thumbsup: Awesome, thanks.

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Comment by datenimperator Wednesday Apr 30, 2014 at 12:30 GMT

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I also ran into this. Any chance this could be solved?

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Comment by stringsn88keys Wednesday Apr 30, 2014 at 14:06 GMT

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I spent a bit of time looking at this, and if you run the command built in ruby-graphviz-1.0.9/lib/graphviz.rb:589 in a separate shell while debugging, the pdf generates just fine.

ruby-graphviz seems to be getting hung up on the call to popen_run in open3.rb ruby 2.1.1 for me. This may need written up in ruby-graphviz (or maybe ruby 2.1, but seems like there would be more problems elsewhere in that case).

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Comment by nitin007 Wednesday May 21, 2014 at 18:14 GMT

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me too :)

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Comment by ericbrooke Thursday May 22, 2014 at 04:54 GMT

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:thumbsup: thank you

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Comment by thierrycorbin Sunday Jun 01, 2014 at 12:07 GMT

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Thanks for the workaround.

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Comment by vladCovaliov Tuesday Jul 01, 2014 at 06:45 GMT

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This solution works but the diagram doesn't have STI.

A workaround:

erd --inheritance --direct --attributes=foreign_keys,content --filetype=dot
dot -Tpdf erd.dot > erd.pdf

I would also like to thank @nicholasjhenry.