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ebrad

2007-Jul-09 21:26 UTC

Color coding table rows depending on an attribute

I need to show a different background color depending on the type of
comment posted.  The type of comment is determined from a drop-down
selection.  I figured the simplest way would be to do something like I
have below, but I can''t seem to get it to work:

<tr <%= puts ''"style = "background:
red;"'' if comment.comment_type =''Hiring Process''
%> >

I have 4-5 comment_types that need coloring, so I''ll probably move
this into a helper when I''m finished using some form of,

if comment_type == ''Hiring Process''
puts "style = ''background: red;''"
elsif comment_type == ''Job Title Change''
puts "style = ''background: green;''"
end

A similar application would be a help desk ticket system where high
priority tickets would be shown in a different color.


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ebrad

2007-Jul-09 21:45 UTC

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Re: Color coding table rows depending on an attribute

answer:

<tr <%= ''"style = "background: red;"'' if
remark.comment_type =''Hiring Process'' %> >

a helpful IRC chatter, named gnufied, told me that ''puts''
cannot go in
a rhtml.  So, I removed the puts and it worked.

On Jul 9, 5:26 pm, ebrad
<nisguy_...-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
wrote:> I need to show a different background color depending on the type of
> comment posted.  The type of comment is determined from a drop-down
> selection.  I figured the simplest way would be to do something like I
> have below, but I can''t seem to get it to work:
>
> <tr <%= puts ''"style = "background:
red;"'' if comment.comment_type => ''Hiring
Process'' %> >
>
> I have 4-5 comment_types that need coloring, so I''ll probably move
> this into a helper when I''m finished using some form of,
>
> if comment_type == ''Hiring Process''
> puts "style = ''background: red;''"
> elsif comment_type == ''Job Title Change''
> puts "style = ''background: green;''"
> end
>
> A similar application would be a help desk ticket system where high
> priority tickets would be shown in a different color.

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Paolo Negri

2007-Jul-09 21:46 UTC

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Re: Color coding table rows depending on an attribute

First you need to read more docs about how the erb template language works

1) you don''t need the puts <%= code %> will print the output of
the
code on the page.

2) is not necessary that you include "style =" in the ruby code since
that part is the same in any case. You can do

  <tr style="background: <%= "red" if comment.comment_type
== ''Hiring
Process'' %>;">

3) instead of writing explicitly the colour you can just set a css
class depending by the comment type, you just need to make the
comment_type a valid string for a css class. By instance you can
substitute spaces with _ and make everything lowercase
  <tr class="<%= comment.comment_type.gsub('' '',
''_'').downcase %>">

On 09/07/07, ebrad <nisguy_300-/E1597aS9LQAvxtiuMwx3w@public.gmane.org>
wrote:>
> I need to show a different background color depending on the type of
> comment posted.  The type of comment is determined from a drop-down
> selection.  I figured the simplest way would be to do something like I
> have below, but I can''t seem to get it to work:
>
> <tr <%= puts ''"style = "background:
red;"'' if comment.comment_type => ''Hiring
Process'' %> >
>
> I have 4-5 comment_types that need coloring, so I''ll probably move
> this into a helper when I''m finished using some form of,
>
> if comment_type == ''Hiring Process''
> puts "style = ''background: red;''"
> elsif comment_type == ''Job Title Change''
> puts "style = ''background: green;''"
> end
>
> A similar application would be a help desk ticket system where high
> priority tickets would be shown in a different color.
>
>
> >
>
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ebrad

2007-Jul-09 21:51 UTC

head link

Re: Color coding table rows depending on an attribute

Thanks Paolo,

Yeah, you are right, the puts thing was a blunder on my part. Also,
I''m aware about the CSS styling, but I just like to take baby steps
since this is my first rails app.

That was helpful!

cheers,

Brad Winchester

On Jul 9, 5:46 pm, "Paolo Negri"
<hungryl...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> First you need to read more docs about how the erb template language works
>
> 1) you don''t need the puts <%= code %> will print the output
of the
> code on the page.
>
> 2) is not necessary that you include "style =" in the ruby code
since
> that part is the same in any case. You can do
>
>   <tr style="background: <%= "red" if
comment.comment_type == ''Hiring
> Process'' %>;">
>
> 3) instead of writing explicitly the colour you can just set a css
> class depending by the comment type, you just need to make the
> comment_type a valid string for a css class. By instance you can
> substitute spaces with _ and make everything lowercase
>   <tr class="<%= comment.comment_type.gsub(''
'', ''_'').downcase %>">
>
> On 09/07/07, ebrad
<nisguy_...-/E1597aS9LQAvxtiuMwx3w@public.gmane.org> wrote:
>
>
>
> > I need to show a different background color depending on the type of
> > comment posted.  The type of comment is determined from a drop-down
> > selection.  I figured the simplest way would be to do something like I
> > have below, but I can''t seem to get it to work:
>
> > <tr <%= puts ''"style = "background:
red;"'' if comment.comment_type => > ''Hiring
Process'' %> >
>
> > I have 4-5 comment_types that need coloring, so I''ll probably
move
> > this into a helper when I''m finished using some form of,
>
> > if comment_type == ''Hiring Process''
> > puts "style = ''background: red;''"
> > elsif comment_type == ''Job Title Change''
> > puts "style = ''background: green;''"
> > end
>
> > A similar application would be a help desk ticket system where high
> > priority tickets would be shown in a different color.

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Michael Glaesemann

2007-Jul-09 22:13 UTC

head link

Re: Color coding table rows depending on an attribute

On Jul 9, 2007, at 16:26 , ebrad wrote:
> <tr <%= puts ''"style = "background:
red;"'' if comment.comment_type => ''Hiring
Process'' %> >
>
> I have 4-5 comment_types that need coloring, so I''ll probably move
> this into a helper when I''m finished using some form of,
>
> if comment_type == ''Hiring Process''
> puts "style = ''background: red;''"
> elsif comment_type == ''Job Title Change''
> puts "style = ''background: green;''"
> end
There are two things I think you could do to clean this up:
1) Don''t put so much code within HTML tags. A helper can definitely  
help with this.
2) Use class attributes to give your tags semantic mean, and then use  
CSS to style them appropriately.

For 1), create a helper, something like (untested):

def class_attr_for(comment_type)
   value = case comment_type
           when ''Hiring Process''
             ''hiringProcess''
           when ''Job Title Change''
             ''jobTitleChange''
           end
   class_attr = value ? %(class="#{value}") : ''''
end

class_attr_for will return either class="someValue" or ""

Then, you can call it in your view template like:

<tr <%= class_attr_for comment_type%>>

And in your CSS add something like:

.hiringProcess { background-color: red; }
.jobTitleChange { background-color: green; }

This gives you much better separation between your mark up and your  
presentation, as well as cleaning up the view template.

Hope this helps.

Michael Glaesemann
grzm seespotcode net



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ebrad

2007-Jul-10 08:01 UTC

head link

Re: Color coding table rows depending on an attribute

You are right...gotta keep it clean and DRY. I''ll definitely do this.

Thanks!

On Jul 9, 6:13 pm, Michael Glaesemann
<g...-RYEyMNgfJnVLeUupdtUFmg@public.gmane.org>
wrote:> On Jul 9, 2007, at 16:26 , ebrad wrote:
>
> > <tr <%= puts ''"style = "background:
red;"'' if comment.comment_type => > ''Hiring
Process'' %> >
>
> > I have 4-5 comment_types that need coloring, so I''ll probably
move
> > this into a helper when I''m finished using some form of,
>
> > if comment_type == ''Hiring Process''
> > puts "style = ''background: red;''"
> > elsif comment_type == ''Job Title Change''
> > puts "style = ''background: green;''"
> > end
>
> There are two things I think you could do to clean this up:
> 1) Don''t put so much code within HTML tags. A helper can
definitely
> help with this.
> 2) Use class attributes to give your tags semantic mean, and then use
> CSS to style them appropriately.
>
> For 1), create a helper, something like (untested):
>
> def class_attr_for(comment_type)
>    value = case comment_type
>            when ''Hiring Process''
>              ''hiringProcess''
>            when ''Job Title Change''
>              ''jobTitleChange''
>            end
>    class_attr = value ? %(class="#{value}") :
''''
> end
>
> class_attr_for will return either class="someValue" or
""
>
> Then, you can call it in your view template like:
>
> <tr <%= class_attr_for comment_type%>>
>
> And in your CSS add something like:
>
> .hiringProcess { background-color: red; }
> .jobTitleChange { background-color: green; }
>
> This gives you much better separation between your mark up and your
> presentation, as well as cleaning up the view template.
>
> Hope this helps.
>
> Michael Glaesemann
> grzm seespotcode net

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