Rails - Feb 2006 - how to output something from within <% %> tags?

simple question: how do I output something from within <% %> tags? e.g. 
like ''echo'' in PHP. I thought it would be
''puts'' or ''print'' but neither
seems to work. right now I always close the %> and open a <%= which is 
tedious.

-- 
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You would use <% render :text => "whatever you want to write"
%> but I''m not
sure how that would be less tedious than <%= "whatever you want to
write" %>


On 2/23/06, Filip Godsmurf <krommenaas@gmail.com>
wrote:
>
> simple question: how do I output something from within <% %> tags?
e.g.
> like ''echo'' in PHP. I thought it would be
''puts'' or ''print'' but neither
> seems to work. right now I always close the %> and open a <%= which
is
> tedious.
>
> --
> Posted via http://www.ruby-forum.com/.
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>
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Filip Godsmurf wrote:
> simple question: how do I output something from within <% %> tags?
e.g.
> like ''echo'' in PHP. I thought it would be
''puts'' or ''print'' but neither
> seems to work. right now I always close the %> and open a <%= which
is
> tedious.
>From API docs:
  concat(string, binding)

The regular puts and print are outlawed in eRuby. It?s recommended to 
use the <%= "hello" %> form instead of print "hello".
If you absolutely
must use a method-based output, you can use concat. It?s used like this: 
<% concat "hello", binding %>. Notice that it doesn?t have an
equal sign
in front. Using <%= concat "hello" %> would result in a double
hello.


Simo
 Addsw.it


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Clint Pidlubny wrote:
> You would use <% render :text => "whatever you want to
write" %> but I''m
> not
> sure how that would be less tedious than <%= "whatever you want to 
> write" %>
Thanx but that doesn''t work; render :text only works from within the 
controller and it won''t render anything else anymore. I just need a 
command to echo stuff within a view.

With an echo command I could do this:

<%
  code
  echo "whatever you want to write"
  more code
%>

Whereas now I have to do this:

<%
  code
%>
<%= "whatever you want to write" %>
<%
  more code
%>

And that is very tedious.

An echo command is so basic, surely RoR has this?

-- 
Posted via http://www.ruby-forum.com/.

Simo Gal wrote:
> From API docs:
>   concat(string, binding)
> 
> The regular puts and print are outlawed in eRuby. It?s recommended to 
> use the <%= "hello" %> form instead of print
"hello". If you absolutely
> must use a method-based output, you can use concat. It?s used like this: 
> <% concat "hello", binding %>. Notice that it doesn?t have
an equal sign
> in front. Using <%= concat "hello" %> would result in a
double hello.
Thanx, that works but the ", binding" part makes it bad. I tried to
put
this in application_helper.rb

  def echo(str)
    concat(str, binding)
  end

but that generates an error

  undefined local variable or method `_erbout'' for 
#<#<Class:0x384b968>:0x384b548>


Sometimes RoR annoys the hell out of me. Why would they deliberately 
''outlaw'' a most basic function?

-- 
Posted via http://www.ruby-forum.com/.

Helpers are meant for this. That''s why they exist. You put your output
code in the helper function and call it in your view. That''s probably
why they disabled it.... It forces you to keep your views cleaner.


-----Original Message-----
From: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Filip Godsmurf
Sent: Thursday, February 23, 2006 11:02 AM
To: rails@lists.rubyonrails.org
Subject: [Rails] Re: how to output something from within <% %> tags?


Clint Pidlubny wrote:
> You would use <% render :text => "whatever you want to
write" %> but
> I''m
> not
> sure how that would be less tedious than <%= "whatever you want to 
> write" %>
Thanx but that doesn''t work; render :text only works from within the 
controller and it won''t render anything else anymore. I just need a 
command to echo stuff within a view.

With an echo command I could do this:

<%
  code
  echo "whatever you want to write"
  more code
%>

Whereas now I have to do this:

<%
  code
%>
<%= "whatever you want to write" %>
<%
  more code
%>

And that is very tedious.

An echo command is so basic, surely RoR has this?

-- 
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Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails

Hogan, Brian P. wrote:
> Helpers are meant for this. That''s why they exist. You put your
output
> code in the helper function and call it in your view. That''s
probably
> why they disabled it.... It forces you to keep your views cleaner.
er, so what helper code do I need? as I said, the one I tried gave me an 
error. and being forced to use <%= is just making my views messier, cfr. 
my example.

-- 
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It is simple. Where would puts output to?
My guess is it would go to stdout, so to the webrick console?

     Erik.


Filip Godsmurf schreef:
> Simo Gal wrote:
>   
> Sometimes RoR annoys the hell out of me. Why would they deliberately 
> ''outlaw'' a most basic function?
>
>

Just stuff all that messy logic into a helper and call that

instead of

<% code
   more code
   output something %>

you could do

<%= fancy_helper %>

where fancy_helper is

def fancy_helper
 code
 more code
 output something
end

_Kevin

if that doesn''t do the trick, try posting some real code from your view
and I''m sure we could find a way to clean it up.



On Thursday, February 23, 2006, at 6:35 PM, Filip Godsmurf
wrote:
>Hogan, Brian P. wrote:
>> Helpers are meant for this. That''s why they exist. You put
your output
>> code in the helper function and call it in your view. That''s
probably
>> why they disabled it.... It forces you to keep your views cleaner.
>
>er, so what helper code do I need? as I said, the one I tried gave me an
>error. and being forced to use <%= is just making my views messier, cfr.
>my example.
>
>--
>Posted via http://www.ruby-forum.com/.
>_______________________________________________
>Rails mailing list
>Rails@lists.rubyonrails.org
>http://lists.rubyonrails.org/mailman/listinfo/rails




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Open up one of the files in app/Helpers like application_helper.rb and
put this in

	def put_some_output(foo)
          "here''s the output of my method with the parameter
#{foo}
inline<br />"
	    "here''s some more output<br />"
      end

Then call that from your page

<%=put_some_output "bar" %>



-----Original Message-----
From: rails-bounces@lists.rubyonrails.org
[mailto:rails-bounces@lists.rubyonrails.org] On Behalf Of Filip Godsmurf
Sent: Thursday, February 23, 2006 11:36 AM
To: rails@lists.rubyonrails.org
Subject: [Rails] RE: Re: how to output something from within <% %> tags?


Hogan, Brian P. wrote:
> Helpers are meant for this. That''s why they exist. You put your
output
> code in the helper function and call it in your view. That''s
probably
> why they disabled it.... It forces you to keep your views cleaner.
er, so what helper code do I need? as I said, the one I tried gave me an

error. and being forced to use <%= is just making my views messier, cfr.

my example.

-- 
Posted via http://www.ruby-forum.com/.
_______________________________________________
Rails mailing list
Rails@lists.rubyonrails.org
http://lists.rubyonrails.org/mailman/listinfo/rails

On Feb 23, 2006, at 9:01 AM, Filip Godsmurf wrote:
> Clint Pidlubny wrote:
>> You would use <% render :text => "whatever you want to
write" %>
>> but I''m
>> not
>> sure how that would be less tedious than <%= "whatever you want
to
>> write" %>
>
> Thanx but that doesn''t work; render :text only works from within
the
> controller and it won''t render anything else anymore. I just need
a
> command to echo stuff within a view.
>
> With an echo command I could do this:
>
> <%
>   code
>   echo "whatever you want to write"
>   more code
> %>
>
> Whereas now I have to do this:
>
> <%
>   code
> %>
> <%= "whatever you want to write" %>
> <%
>   more code
> %>
>
> And that is very tedious.
>
> An echo command is so basic, surely RoR has this?

Also instead of concat you can use _erbout if you dont like the  
binding part. But I agree with others that its bad fomr to need this  
much code in your views. This in not PHP so you dont use echo or  
print. But if you must then you can use _erbout like this:

<%
code
_erbout << "Some text"
more code
%>

Cheers-
-Ezra

Filip Godsmurf wrote:
> Thanx, that works but the ", binding" part makes it bad. I tried
to put
> this in application_helper.rb
> 
>   def echo(str)
>     concat(str, binding)
>   end
> 
> but that generates an error
> 
>   undefined local variable or method `_erbout'' for 
> #<#<Class:0x384b968>:0x384b548>
That''s because if you put it in a helper method, the binding is picked 
up from inside the helper method, which knows nothing about the 
variables local to the erb script.  If you''re going to be using that 
technique, the binding() method actually has to be called in the erb.
> 
> Sometimes RoR annoys the hell out of me. Why would they deliberately 
> ''outlaw'' a most basic function?
Because it''s wrong to use it more often than it''s right,
maybe?

-- 
Alex

On 2/24/06, Filip Godsmurf <krommenaas@gmail.com>
wrote:
> Clint Pidlubny wrote:
> > You would use <% render :text => "whatever you want to
write" %> but I''m
> > not
> > sure how that would be less tedious than <%= "whatever you
want to
> > write" %>
>
> Thanx but that doesn''t work; render :text only works from within
the
> controller and it won''t render anything else anymore. I just need
a
> command to echo stuff within a view.
>
> With an echo command I could do this:
>
> <%
>   code
>   echo "whatever you want to write"
>   more code
> %>
>
> Whereas now I have to do this:
>
> <%
>   code
> %>
> <%= "whatever you want to write" %>
> <%
>   more code
> %>
>
> And that is very tedious.
>
> An echo command is so basic, surely RoR has this?
I also really hate this,
why there is no "echo" in rails

But I did this,

<%s = ""

code
s = s + "append something"
code

s
%>




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