[Rails] Alternative to <%=

ruby-talk
1

Hello,

Is there another way to render html to the final page without using <%=
?

I tried using print, but the output was the Webrick console.

Thank you,
Brian Takita

2

You can try:

   <% _erbout.concat "hello" %>

But note that this is kind of fragile, because ActionView may (theoretically) change the name of the concatenation variable ("_erbout").

- Jamis

···

On Jul 20, 2005, at 3:00 PM, Brian Takita wrote:

Hello,

Is there another way to render html to the final page without using <%=
?

I tried using print, but the output was the Webrick console.

3

Brian Takita wrote:

Is there another way to render html to the final page without using <%=
?

I tried using print, but the output was the Webrick console.

In ERb? No, that's how you do it. What's wrong with the syntax as it
exists?

4

Brian Takita wrote:

Hello,

Is there another way to render html to the final page without using <%=
?

I tried using print, but the output was the Webrick console.

Thank you,
Brian Takita

From a controller method responsible for generating the page, you can use method render(:text => "content"), where "content" is an html content to show in the browser.

If you are looking for alternatives to ERB, you can try Amrita2 (http://amrita2.rubyforge.org/\). Or wait for my soon-to-be-released XHTML template expansion library called "Facial" (heavily influenced by Amrita2, see http://facial.rubyforge.org/wiki/wiki.pl for more information) ;-).

Gennady.

5

Not that this is the best way to do things, but I was thinking of:

<p<%= ' style="text-align: center"' if @has_style%><%= '...' if
@show_another_attribute%>>
Paragraph
</p>

vs:

<%
out = '<p'
out << ' style="text-align: center"' if @has_style
out << '...' if @show_another_attribute
out << '>'
out << Paragraph
out << '</p>

print out
%>

But now that I think about it, something like this would work out
better:

<%=
begin
  out = '<p'
  out << ' style="text-align: center"' if @has_style
  out << '...' if @show_another_attribute
  out << '>'
  out << Paragraph
  out << '</p>
end
%>

6

In article <42DEC37F.4030508@tonesoft.com>, gfb@tonesoft.com says...

Or wait for my soon-to-be-released
XHTML template expansion library called "Facial"

You many want to rethink the name if you expect this to become
popular... "facial" has a noun has some particularly bad connotations.

···

--
Jay Levitt |
Wellesley, MA | I feel calm. I feel ready. I can only
Faster: jay at jay dot fm | conclude that's because I don't have a
http://www.jay.fm | full grasp of the situation. - Mark Adler

7

This looks like a prime candidate for refactoring into a helper, actually:

   <p<%= my_custom_p_attrs %>>Paragraph</p>

With the corresponding helper definition:

   def my_custom_p_attrs
     attrs = ""
     attrs << %{ style="text-align: center"} if @has_style
     attrs << %{ ...} if @show_another_attribute
     attrs
   end

- Jamis

···

On Jul 20, 2005, at 4:40 PM, Brian Takita wrote:

But now that I think about it, something like this would work out
better:

<%=
begin
    out = '<p'
    out << ' style="text-align: center"' if @has_style
    out << '...' if @show_another_attribute
    out << '>'
    out << Paragraph
    out << '</p>
end
%>

8

Brian Takita wrote:

But now that I think about it, something like this would work out
better:

<%=
begin
  out = '<p'
  out << ' style="text-align: center"' if @has_style
  out << '...' if @show_another_attribute
  out << '>'
  out << Paragraph
  out << '</p>
end
%>

I would wrap something like that in a helper method. Although you may
want to look into just using CSS classes as well.