Re: Count the Split up Tag values

\"Wolas!\"
2008-07-01T20:40:07Z

Marra,
There are lots of things that tie up a function in a rails project.
(function being the tag functionality) the solution i gave is based on
your note model having many tags and vice-versa. If you want to follow
the "list in one column" approach, the solution id give you is the
same one i posted before, because its just neater, and follows the
rails conventions. So a couple of suggestions:

1) Read blogs, tutorials and screen casts because these questions will
all be answered there
2) Follow rails conventions, this is a tough one to learn because
there is nothing that protects you from doing things your way, the
flipside is that when you want to use your code into some pre-
established rails "way" it generally doesnt work and you have to spend
time re diong what you did to fit to the rails conventions.
3) Google before you post. Your question was something that i have
though of doing a coupe of times and i wanted others to see why is it
not a good idea and how it could be done neatly, in general nobody
will answer these

good luck

j

On Jul 1, 4:57 pm, Marra
<bendingunitn...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> I tried:
>
>
>         <%- for notes in @tags_sql do -%>
>         <% count = 0
>         notes.tag.split(", ").each do |tags|
>                 count += 1 if notes.tag.split(",
").include?(tags)%>
> <%= link_to(tags, {:tag => tags, :controller =>
> ''project'', :action => ''tags'', :id
=> @project_id}) %> <%= count%>
>         <% end %>
>
>
> But it just counts each one like. I know I''m totally doing it
work.
>
> a 1
> b 2
> c 3
>
> On Jul 1, 11:54 am, "\"Wolas!\""
<jcpen...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > I answer here coz i forgot your code already...
>
> > === routes.rb
>
> > map.resources :tags
>
> > === controllers/tags_controller.rb
>
> > def index
> >    @tags = Tag.find(:all)
> > end
>
> > === views/tags/index.rhtml
>
> > <%- for tag in @tags do -%>
> >    <%= link_to tag, :controller => ''tags'',
:action => ''show'', :id =>
> > tag %> ( <%= tag.notes.size %> )
> > <% end %>
>
> > This will display what you want
> > tag1 (3)
> > tag2 (0)
> > tag3 (6)
>
> > where the number is the number of notes associated with that tag.
>
> > the link stuff ignore if you know where and what to call, but id
> > suppose when you click on one of them it shows you with more depth,
> > what is in the tag
>
> > === models/tag.rb
>
> > has_and_belongs_to_many :notes
>
> > === models/note.rb
>
> > has_and_belongs_to_many :tags
>
> > === cmd
>
> > ruby script/generate migration add_join_table
>
> > create_table :tags_notes, :id => false do |t|
> >    t.integer :tag_id
> >    t.integer :note_id
> > end
>
> > You really need to go through some tutorials, people are not gonna
> > solve these types of issues so in depth all the time....
>
> > but hope it helps
>
> > On Jul 1, 4:06 pm, "\"Wolas!\""
<jcpen...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > How about Note has_many :tags so that rails takes care of it all
>
> > > if you dont like that (which i strongly recommend having
implemented
> > > your solution and replacing it with the association)
>
> > > you will need to write your own method that counts the instances
of an
> > > object in an array. it comes by default in ruby 1.9,
unfortunatley,
> > > rails does not work with it.
>
> > > def array_count arr, obj
> > >  count= 0
> > >   arr.each do |item|
> > >      count+= 1 if item == obj
> > >   end
> > >  count
> > > end
>
> > > more or less this should work if you put it in your helper so
that it
> > > doesnt clobber the controller, or even still in the model
>
> > > === note.rb
>
> > > class Note < AR::Base
> > >    has_many :tags # this would be ideal
>
> > > def note_count tag
> > >  count= 0
> > >   notes.each do |note|
> > >      count+= 1 if note.tags.include?(tag)
> > >   end
> > >  count
> > > end
> > > end
>
> > > hope it helps
> > > On Jul 1, 3:53 pm, Marra
<bendingunitn...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
>
> > > > Hello!
>
> > > > I have in my database the tags for a specific entry
separated by
> > > > commas and I''m using a SQL statement that pulls all
the tags for a
> > > > bunch of entries and the ruby code on the page:
>
> > > >         <%- for notes in @tags_sql do -%>
> > > >         <% notes.tag.split(", ").uniq.each do
|tags| %>
> > > > <%= link_to(tags, {:tag => tags,
:controller =>
> > > > ''project'', :action =>
''tags'', :id => @project_id}) %>
> > > >         <% end %>
>
> > > > It''s able tosplitafter each ", " so I
have each tags listed in the
> > > > unordered list but I also need to have next each individual
tag the
> > > >countof how many times that tag shows up across the sql
statement.
>
> > > > Is there anyway to do that in my code? I know I
can''t do it in my SQL
> > > > statement because it counts the entire chunk per entry like
"a, b, c,
> > > > d" instead of a b c d - it gets broken up in that code
I put above.
>
> > > > Basically if its "a, c, a, d" I got it so far to
be
>
> > > > a
> > > > c
> > > > d
>
> > > > BUT! I need it to be
>
> > > > a (2)
> > > > c (0)
> > > > d (0)
>
> > > > Any help would be appreciated. You guys are really awesome.