model_graph doesn't do the attributes on purpose. My need was to avoid redrawing the associations at a time on a particular project where they were driving me a bit crazy. The use of decorated edges to denote the kind of association is one thing that I didn't find elsewhere.
If you download the test file (or find it in the gem directory, I think) http://model-graph.rubyforge.org/svn/model_graph_test.dot and open it with Graphviz, you see the edge types that mean: class A < ActiveRecord::Base # :nodoc: has_many :bs has_one :c end class B < ActiveRecord::Base # :nodoc: belongs_to :a end class C < ActiveRecord::Base # :nodoc: belongs_to :a end class One < ActiveRecord::Base # :nodoc: has_and_belongs_to_many :twos end class Two < ActiveRecord::Base # :nodoc: has_and_belongs_to_many :ones end class Alpha < ActiveRecord::Base # :nodoc: has_many :betas has_many :gammas, :through => :betas end class Beta < ActiveRecord::Base # :nodoc: belongs_to :alpha belongs_to :gamma end class Gamma < ActiveRecord::Base # :nodoc: has_many :betas has_many :alphas, :through => :betas end class Selfish < ActiveRecord::Base # :nodoc: has_many :selfishes, :foreign_key => :solo_id end So a brief legend (in ASCII) would be: -| belongs_to -|o has_one -o< has_many dotted edge => has_many :through -o<<>>o- has_and_belongs_to_many (where <> is a small, unlabeled, diamond-shaped node) Please do forward your fix for Rails 2.2! Glad it helps a bit, -Rob On Nov 21, 2008, at 12:12 PM, Hubert Łępicki wrote: > > Thanks Rob! > > That is great script, I didn't use Graphviz before so this was more > trouble than installing yor gem ;). > > However, not sure if it's my fault - or library works like that, > generated graph was hard to read and analyze, it also didn't include > model attributes. > > Googling for "ruby graphviz" was more successful: > http://visualizemodels.rubyforge.org/ > > Is really nice plugin, generates cool graphs. I just had to make > little fix for Rails 2.2 to work, but it's easy. > > Best, > H. > > On 21 Lis, 17:19, Rob Biedenharn <[EMAIL PROTECTED]> wrote: >> Oh, alright. I guess it's way past time to get my updates to my >> model_graph code (http://rubyforge.org/projects/model-graph/) >> packaged >> up and posted. This reflects on the AR associations and builds a DOT >> file that can be visualized with, e.g., Graphviz. (From there you >> can >> export as PNG, PDF, etc.) >> >> -Rob >> >> On Nov 21, 2008, at 10:51 AM, Hubert Łępicki wrote: >> >>> Hi Tom, >> >>> You read my mind, I just was about to post identical question... >>> when >>> I stumped upon some complicated models legacy models today. >> >>> Is there something like that out there? >> >>> H. >> >>> On 21 Lis, 15:31, Tom Lobato <[EMAIL PROTECTED]> wrote: >>>> Hi all! >> >>>> There are several softwares which read a database and shows the >>>> tables graphically on the screen (now I`m using Power >>>> Architect:http://www.sqlpower.ca/page/architect) >>>> . Is there something which >>>> beyond to read the tables, can understand the relationship beetween >>>> it >>>> from app/models files? I say, has_many, belongs_to, etc... >> >>>> Ok, I could use Power Architect to read the tables and make the >>>> arrows >>>> by hand, but in a constant growing project, it is not a good way. >> >>>> Thank You >>>> Tom Lobato Rob Biedenharn http://agileconsultingllc.com [EMAIL PROTECTED] --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
