Developing an application with angular I came into a problem. In my
application I use cancan ( https://github.com/ryanb/cancan ).
Now when showing data in a table i have to filter if the logged user can or
cannot edit, view etc, and thus disabling buttons that allow given
operations.
When using ror its not a problem:
%td
-if can? :edit,script
%a{:href=>edit_script_path(script)}
edit
but when i need to do the same thing with angular i need to mark the row
data inside the controller with a flag eg. can_edit, can_view and then
so i come up with an idea to add an attribute to each row before rendering
to json:
@scripts.each do |script|
script[:can_edit]=can?(:edit,script)
end
but then i get the depriciation warning:
Writing arbitrary attributes on a model is deprecated. Please just use
`attr_writer`
An option to add columns can_edit, can_view to my table is out of the
question,
allso taking the cancan logic into angular is allso not an option as I
think that all of the logic is
allready in cancan. So for me it comes down to how can I add the attributes
that are not in my tables to models?
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On Monday, April 15, 2013 8:18:18 AM UTC+1, Filip Matošić wrote:> Developing an application with angular I came into a problem. In my application I use cancan ( https://github.com/ryanb/cancan ). > Now when showing data in a table i have to filter if the logged user can or cannot edit, view etc, and thus disabling buttons that allow given operations. > When using ror its not a problem: > > %td > -if can? :edit,script > %a{:href=>edit_script_path(script)} > edit > but when i need to do the same thing with angular i need to mark the row data inside the controller with a flag eg. can_edit, can_view and then > so i come up with an idea to add an attribute to each row before rendering to json: > >As the warning suggests, I''d use attr_writer/attr_accessor. This doesn''t mean adding columns to your database, just some ruby accessor methods (people sometimes call these virtual attributes) Fred> > > > > > > > > > > > @scripts.each do |script| > script[:can_edit]=can?(:edit,script) > end > but then i get the depriciation warning: > Writing arbitrary attributes on a model is deprecated. Please just use `attr_writer` > > An option to add columns can_edit, can_view to my table is out of the question, > allso taking the cancan logic into angular is allso not an option as I think that all of the logic is > allready in cancan. So for me it comes down to how can I add the attributes that are not in my tables to models?-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/WywZ7LJnVVEJ. For more options, visit https://groups.google.com/groups/opt_out.
As zou have suggested i have done this by adding attr_writer :can_edit,:can_read to my model and in my controller @scripts.each do |script| script[:can_edit]=can?(:edit,script) end but still getting the warning guess I''m doing something wrong, can you lead me in the right direction? Dana ponedjeljak, 15. travnja 2013. 09:18:18 UTC+2, korisnik Filip Matošić napisao je:> > Developing an application with angular I came into a problem. In my > application I use cancan ( https://github.com/ryanb/cancan ). > Now when showing data in a table i have to filter if the logged user can > or cannot edit, view etc, and thus disabling buttons that allow given > operations. > When using ror its not a problem: > %td > -if can? :edit,script > %a{:href=>edit_script_path(script)} > edit > but when i need to do the same thing with angular i need to mark the row > data inside the controller with a flag eg. can_edit, can_view and then > so i come up with an idea to add an attribute to each row before rendering > to json: > > @scripts.each do |script| > script[:can_edit]=can?(:edit,script) > end > > but then i get the depriciation warning: > Writing arbitrary attributes on a model is deprecated. Please just use > `attr_writer` > > An option to add columns can_edit, can_view to my table is out of the > question, > allso taking the cancan logic into angular is allso not an option as I > think that all of the logic is > allready in cancan. So for me it comes down to how can I add the > attributes that are not in my tables to models? > > > >-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/mx80Ov_ZCGwJ. For more options, visit https://groups.google.com/groups/opt_out.
I''m using: ruby 1.9.3p125 (2012-02-16 revision 34643) rails 3.2.13 activesupport (3.2.11) -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/g-eqnn6y1lkJ. For more options, visit https://groups.google.com/groups/opt_out.
After some research i have added
attr_accessor :can_edit,:can_read
and now when I:
@scripts.each do |script|
script.can_edit=can?(:edit,script)
logger.debug("----Script----#{script.to_yaml}")
end
I do not get any warning, but in my log can_edit is not being printed,
allso if i json the result (@scripts) back to my page the ca_read is not
there?
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On Monday, April 15, 2013 8:46:22 AM UTC+1, Filip Matošić wrote:> > As zou have suggested i have done this by adding > attr_writer :can_edit,:can_read > to my model > and in my controller > @scripts.each do |script| > script[:can_edit]=can?(:edit,script) > end >Having defined the accessor you do actually need to use it, e.g. script.can_edit = can?(:edit, script). For it to be included in your to_json output, make it an attr_accessor (so that you get the reader method too) and use the :methods option to add it to the json output. Fred> but still getting the warning > guess I''m doing something wrong, > can you lead me in the right direction? > > Dana ponedjeljak, 15. travnja 2013. 09:18:18 UTC+2, korisnik Filip Matošić > napisao je: >> >> Developing an application with angular I came into a problem. In my >> application I use cancan ( https://github.com/ryanb/cancan ). >> Now when showing data in a table i have to filter if the logged user can >> or cannot edit, view etc, and thus disabling buttons that allow given >> operations. >> When using ror its not a problem: >> %td >> -if can? :edit,script >> %a{:href=>edit_script_path(script)} >> edit >> but when i need to do the same thing with angular i need to mark the row >> data inside the controller with a flag eg. can_edit, can_view and then >> so i come up with an idea to add an attribute to each row before >> rendering to json: >> >> @scripts.each do |script| >> script[:can_edit]=can?(:edit,script) >> end >> >> but then i get the depriciation warning: >> Writing arbitrary attributes on a model is deprecated. Please just use >> `attr_writer` >> >> An option to add columns can_edit, can_view to my table is out of the >> question, >> allso taking the cancan logic into angular is allso not an option as I >> think that all of the logic is >> allready in cancan. So for me it comes down to how can I add the >> attributes that are not in my tables to models? >> >> >> >>-- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/W1vBSt7bfnAJ. For more options, visit https://groups.google.com/groups/opt_out.
Thx, helped alot, now I just: In my model attr_accessor :can_edit,:can_read In my controller i set the can_edit and simply respond_with(@scripts,:methods => [:can_edit,:can_view]) there is allso a as_json method you can put into the model and it overrides to_json so you do not need to write ",:methods => [:can_edit,:can_view])" every time i will give that a try afterwords, thank''s for help -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msg/rubyonrails-talk/-/g--3PXYb8qUJ. For more options, visit https://groups.google.com/groups/opt_out.