I want to print text to HTML. I'm using simple_format, however everything seems to be right except that what is inside "< >" is not printed.
Thanks.
You can pass in a :sanitize option to tell it not to sanitize your tags:
<%= simple_text(my_string, nil, :sanitize => false) %>
Related
I'm trying to create a search form in my rails application. I've looked up various solutions but they make little sense to me.
I'm getting the following error when I run a search through a form in my rails app. Right now my concern (other than the error) is my instance variable #computers in my index action. I'm pretty sure it's not 'the rails way' to get a search done properly and would love some advice.
Error
undefined method `%' for #<Array:0x5780460>
Parameters after Search
http://localhost:3000/computers?utf8=%E2%9C%93&direction=&sort=&search=bob
Search Form
<%= form_tag computers_path, method: "get" do %>
<%= hidden_field_tag :direction, params[:direction] %>
<%= hidden_field_tag :sort, params[:sort] %>
<%= text_field_tag :search, params[:search] %>
<%= submit_tag "Go", name: nil, class: "btn btn-primary" %>
<% end %>
Call to Method
def index
#computers = Computer.where(school_id: current_user.school_id).search(params[:search]).category(params[:category]).order(sort_column + " " + sort_direction)
end
Method
def Computer.search(search)
if search
search = search.downcase
params = []
values = {}
column_names.each do |c|
params << "#{c} LIKE #{c.to_sym}"
values[c.to_sym] = search
end
params.join (' OR ')
where(params,values)
else
all
end
end
You've got the right idea, but invoking the .join method does not change the object on which it is called, it merely returns a string representation. You need to store the return in a variable, something like this: paramsStr = params.join(' OR '). Then simply pass paramsStr to the where clause.
Ultimately, that is what is causing your unidentified method % for Array .... error; this version of the where method is expecting the first parameter to be a string. Check out this documentation, the part about placeholder conditions.
Hope that helps.
Here is my simple rails 3 code :
<%= link_to "link", gateway_index_url(developer:#item.developer.api_key, tracker:"email", url:#product.url) %>
And the result is :
<a href="/gateway?developer=abcde&tracker=email&url=http%3A%2F%2Fwww.bla.fr%2FproductA" >link</a>
The problem is that & are rewritten in &. I can't figure how to prevent escaping, as :escape => false doesn't exist in Rails 3
Update: So here's the source
def link_to(*args, &block)
if block_given?
options = args.first || {}
html_options = args.second
link_to(capture(&block), options, html_options)
else
name = args[0]
options = args[1] || {}
html_options = args[2]
html_options = convert_options_to_data_attributes(options, html_options)
url = url_for(options)
href = html_options['href']
tag_options = tag_options(html_options)
href_attr = "href=\"#{ERB::Util.html_escape(url)}\"" unless href
"<a #{href_attr}#{tag_options}>#{ERB::Util.html_escape(name || url)}</a>".html_safe
end
end
As we can see, from the source, this behavior is by design.
You can try one of two solutions, I haven't tried them but they should work
1.) Try placing the call to gateway inside of a call to #raw:
<%= link_to "link", raw(gateway_index_url(developer: #item.developer.api_key, tracker:"email", url:#product.url)) %>
That may solve your specific problem, an the second approach, while a bit more brute-force should also work...
2.) If you want to convert it (the whole href) back you can... use CGI::unescape_html:
<%= CGI::unescape_html(link_to "link", gateway_index_url(developer: #item.developer.api_key, tracker:"email", url:#product.url)) %>
Good luck, hopefully this helps.
Update 2: Fixed call to cgi unescape, was using "." when it should be "::" and formatting fix. Forgot to indent example for #1
Rory O'Kane is spot on. The answer to "Why are ampersands escaped when generating url with link_to?" is that is the correct way to separate params in a url.
Is there a problem with the url the way it is?
If so, could you elaborate on the problem?
You may be able to prevent escaping the url by using raw on the entire url like so:
<%= link_to "link", raw(gateway_index_url(developer:#item.developer.api_key, tracker:"email", url:#product.url)) %>
I'm writing my first custom rails validation, and would like to tag the offending class with an html "error" class if they return false - I can't quite figure out how to do it. Relevant validation code below - any help appreciated.
(If it makes a difference, I'm using jQuery)
validates_each :shop do |record, attr, value|
shopvar = record.shops.map{ |s| s.email.downcase.strip }
if shopvar.count != shopvar.uniq.count
record.errors.add(attr, 'has the same email address entered more than once')
#record.errors[attr] << "You have entered this shop in the form twice"
end
end
So in your form you'd have something like this for an input field
<%= form.text_field :title %>
Since errors is a hash you could use the "include?" method like so...
errors.include?(:title)
This tells you that there's something wrong with this field. Now all you need to do is style it.
Whack on a ternary operator asi...
<% css_class = errors.include?(:title) ? "highlight_error_class" : "no_problem_class" %>
<%= form.text_field :title, :class => css_class %>
Done.
I recently transfered my app from Rails2 to Rails3.
The code in 'app/views/distribution/index.html.erb' is like :-
<div style="padding-bottom:10px; padding-left:0px;float:left;display:<%= (!session[:album][#artist.id.to_s].empty? && !session[:album][#artist.id.to_s].nil?)?'block' : 'none' %>" id = "make_payment_enabled">
<%= link_to 'Make Payments',{:action => 'pay', :album=>#album.id}, :class => "button" %>
</div>
It's giving me TemplateError on line :-
<div style="padding-bottom:10px; padding-left:0px;float:left;display:<%= (!session[:album][#artist.id.to_s].empty? && !session[:album][#artist.id.to_s].nil?)?'block' : 'none' %>" id = "make_payment_enabled">
How to resolve the problem ?
Solution 1: In the ERB tag, try putting spaces around the 'or' question mark, i.e. ....nil?) ? 'block....
Solution Better: Do step one, then put that code in a helper. Will really help to clean up your views.
UPDATE:
A few other tips: you will want to switch the order of the conditions, because you will want to see if the value is nil before checking if it's an empty string.
Calling obj.blank? is the equivalent of calling obj.nil? && obj.empty?, so that could make the code a bit shorter. Even better, obj.present? is the same as !obj.blank?.
Therefore, that line could be simplified to:
session[:album][#artist.id.to_s].present? ? 'block' : 'none'
Happy Rails-ing!
I have this partial that renders a line containing three peaces of data contained in a span, and between the spans there is a hyphen. Since the hyphen is a haml keyword (or whatever you call that) you can't just put it between the spans, or haml would go looking for a function or variable. So I've got this
%p
%span{ :class => 'client'}= "#{ won_or_lost['object']['deal']['client'] }"
= "-"
%span{ :class => 'value'}= "#{ won_or_lost['object']['deal']['value'] }"
= "- Thanks to"
%span{ :class => 'owner'}= "#{ won_or_lost['object']['deal']['owner'] }
You probably agree with me that
= "-"
is rather ugly. It's not a real problem, but is there a clean way to do this?
%p
%span.client= won_or_lost['object']['deal']['client']
\-
%span.value= won_or_lost['object']['deal']['value']
\- Thanks to
%span.owner= won_or_lost['object']['deal']['owner']
http://haml-lang.com/docs/yardoc/file.HAML_REFERENCE.html#escaping_
I sometimes prefer to use an Em-dash, which I think looks better typographically:
%p
%span.client= won_or_lost['object']['deal']['client']
—
%span.value= won_or_lost['object']['deal']['value']
— Thanks to
%span.owner= won_or_lost['object']['deal']['owner']