Hi I''m having a problem creating a view widget inside my erb template.
Please see the following gist https://gist.github.com/5723324
Basically I''m trying to isolate a complex piece of html markup with
something like :
<%= Accordion.new(parent: "my-parent") do |accordion| %>
accordion.element("elem1")
accordion.element("elem2")
<% end %>
But yielding self does not return my object instance but the erb
template. It seems in rails there is a need to "capture" a given block
but I can''t figure out how to do this. I''m able to do
something similar
via a rails helper however I wanted to create an object to keep things
DRY. Any help much appreciated !
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Hi pry_f ! Sorry but I''m not sure to have exactly understood what you''re trying to do. What I understand from the code you made available is that the lines below should display something like <p>opening</p> <li> elem1: parent is my-parent</li> <li> elem2: parent is my-parent</li> <p>closing</p> and it doesn''t ? Le jeudi 6 juin 2013 19:48:46 UTC+2, Ruby-Forum.com User a écrit :> > Hi I''m having a problem creating a view widget inside my erb template. > > Please see the following gist https://gist.github.com/5723324 > > Basically I''m trying to isolate a complex piece of html markup with > something like : > > <%= Accordion.new(parent: "my-parent") do |accordion| %> > accordion.element("elem1") > accordion.element("elem2") > <% end %> > > But yielding self does not return my object instance but the erb > template. It seems in rails there is a need to "capture" a given block > but I can''t figure out how to do this. I''m able to do something similar > via a rails helper however I wanted to create an object to keep things > DRY. Any help much appreciated ! > > -- > Posted via http://www.ruby-forum.com/. >-- 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/msgid/rubyonrails-talk/e8a868f8-1ca9-4366-bb0a-31137f4f0e98%40googlegroups.com?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
Berlimioz wrote in post #1111637:> Hi pry_f ! > > Sorry but I''m not sure to have exactly understood what you''re trying to > do. > What I understand from the code you made available is that the lines > below > should display something like > > <p>opening</p> > <li> elem1: parent is my-parent</li> > <li> elem2: parent is my-parent</li> > <p>closing</p> > > and it doesn''t ? > > Le jeudi 6 juin 2013 19:48:46 UTC+2, Ruby-Forum.com User a crit :That''s right. This is not a model related problem. I''m trying to make view "widgets" basically. I created another gist. This time it''s just a ruby script demonstrating the concept by printing to standard out. https://gist.github.com/PryFlack/5732422 I have a little bug as mentioned in the comment. I was pretty sure this was going to work in plain ruby. Anyways with rails I''ve had trouble implementing this idea even more. I don''t see how I could use partials for that so the only thing I can think of is what I''m doing here. Thanks for your feedback and interest ! -- Posted via http://www.ruby-forum.com/. -- 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/msgid/rubyonrails-talk/2ee762a4383d594e7cb3487479e04ba1%40ruby-forum.com?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
Ok, maybe this could help :
When your method initialize returns a string, calling Accordion.new
doesn''t
return this string, because the initialize method is called in the new
method, but that''s not what''s returned by the new class
method.
On the other hand, when you have this :
<<-EOF
<div class="accordion" id="#{@parent_id}">
<!-- first line -->
#{yield self}
</div> <!-- last line -->
EOF
the expression "yield self" will here return the return value of the
block
you pass. When you pass a block like this :
Accordion.new() do |accordion|
"something here"
"something there"
end
the return value of the block is only "something there" (last line of
the
block). So that
<<-EOF
<div class="accordion" id="#{@parent_id}"> <!--
first line -->
#{yield self}
</div> <!-- last line -->
EOF
will actually results in something like :
<div class="accordion" id="#{@parent_id}"> <!--
first line -->
something there
</div> <!-- last line -->
Hope it helped, enjoy your week end anyway !
Le vendredi 7 juin 2013 23:31:01 UTC+2, Ruby-Forum.com User a écrit
:>
> Berlimioz wrote in post #1111637:
> > Hi pry_f !
> >
> > Sorry but I''m not sure to have exactly understood what
you''re trying to
> > do.
> > What I understand from the code you made available is that the lines
> > below
> > should display something like
> >
> > <p>opening</p>
> > <li> elem1: parent is my-parent</li>
> > <li> elem2: parent is my-parent</li>
> > <p>closing</p>
> >
> > and it doesn''t ?
> >
> > Le jeudi 6 juin 2013 19:48:46 UTC+2, Ruby-Forum.com User a crit :
>
> That''s right. This is not a model related problem. I''m
trying
> to make view "widgets" basically.
> I created another gist. This time it''s just a ruby script
demonstrating
> the concept by printing to standard out.
> https://gist.github.com/PryFlack/5732422
>
> I have a little bug as mentioned in the comment. I was pretty sure this
> was going to work in plain ruby. Anyways with rails I''ve had
trouble
> implementing this idea even more. I don''t see how I could use
partials
> for that so the only thing I can think of is what I''m doing here.
Thanks
> for your feedback and interest !
>
> --
> Posted via http://www.ruby-forum.com/.
>
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Berlimioz wrote in post #1111694:> On the other hand, when you have this : > > <<-EOF > <div class="accordion" id="#{@parent_id}"> <!-- first line --> > #{yield self} > </div> <!-- last line --> > EOF > > the expression "yield self" will here return the return value of the > block > you pass. When you pass a block like this :Yes that''s what I was trying to do. I found my mystake. I need to use an instance variable to build the output buffer. Here is a working ruby "prototype" https://gist.github.com/PryFlack/5732422 Now I''m gonna have to bring this into my rails app and see how it goes because as I said yield self behaves differently inside an ERB template. Enjoy your week-end too ! -- Posted via http://www.ruby-forum.com/. -- 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/msgid/rubyonrails-talk/7847532dd22d7f6dbd9b20d0186ab9c3%40ruby-forum.com?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.
Pry Flack wrote in post #1111699:> Berlimioz wrote in post #1111694: > >> On the other hand, when you have this : >> >> <<-EOF >> <div class="accordion" id="#{@parent_id}"> <!-- first line --> >> #{yield self} >> </div> <!-- last line --> >> EOF >> >> the expression "yield self" will here return the return value of the >> block >> you pass. When you pass a block like this : > > Yes that''s what I was trying to do. I found my mystake. I need to use an > instance variable to build the output buffer. Here is a working ruby > "prototype" https://gist.github.com/PryFlack/5732422 > > Now I''m gonna have to bring this into my rails app and see how it goes > because as I said yield self behaves differently inside an ERB template. > > Enjoy your week-end too !Well I am failing miserably with this! My latest attempt here: https://gist.github.com/PryFlack/5723324 Having so much difficulty with this I thought about going a different way. I realized i could also do the following: =====START==== <% parent_id = "myAccordion" %> <%= render layout: ''accordion'', locals: { parent_id: parent_id } do |parent| %> <%= render layout: ''accordion_element'', locals: { target_id: "collapseRow1", title: "Row1", parent_id: parent_id, in_or_out: "in" } do %> <p>inside child1</p> <% end %> <%= render layout: ''accordion_element'', locals: { target_id: "collapseRow2", title: "Row2", parent_id: parent_id, in_or_out: nil } do %> <p>inside child2</p> <% end %> <% end %> =====END==== However this is still pretty verbose. So this adds more complexity and it''s pretty rigid (if I want to modify the rendering of the html block, I have to modify my calls to render everywhere) Also apart from creating an instance variable inside the erb template, I don''t see a good way to pass value in the nested rendered layout (other than repeating myself) Has anybody got any good info on how to generate and abstract complex html blocks ? -- Posted via http://www.ruby-forum.com/. -- 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/msgid/rubyonrails-talk/144ded550e06a42877650b9d08480891%40ruby-forum.com?hl=en-US. For more options, visit https://groups.google.com/groups/opt_out.