I want to be able interpolate variables inside of strings stored in a yml locales file. The only way I have figured out how to do this is with regex.
For example in en.yml I have
---
en:
byline: "By <strong>{{author}}</strong>"`
And then in my erb file I have:
<%= t(:byline).gsub!(/{{author}}/, current_page.data.author) %>
Is there an easier way to do this?
See Passing Variables to Translations in the Rails Internationalization API RailsGuide:
You can use variables in the translation messages and pass their values from the view.
# app/views/home/index.html.erb
<%=t 'greet_username', user: "Bill", message: "Goodbye" %>
# config/locales/en.yml
en:
greet_username: "%{message}, %{user}!"
Related
I just want to make a simple each loop in my Middleman helper, datas are stored in my page'Frontmatter like this :
dir:
- test
- test2
So in my helper, I try to write my loop :
def translate_directory
current_page.data.dir.each do |dir|
dir
end
end
call my method in my page
<%= translate_directory %>
and this is what's display :
["test", "test2"]
But now, if I make the same loop in my page, write with ERB syntax :
<% current_page.data.dir.each do |x| %>
<%= x %>
<% end %>
the exit is the following
test test2
separated in two strings, so exactly what I want.
EDIT : when I puts the helper'method, it display the two strings in two lines, so in two separated strings. Don't understand why it appear as an array on my browser.
EDIT 2 : a little thing I forgot, I want to translate each word with I18n.translate, like this :
def path_translate
current_page.data.dir.each { |dir| t("paths.#{dir}", locale: lang) }
end
but i can't because the each method doesn't work so I18n can't translate each word.
Because your helper is returning an array not a interpolated string like the ERB template is doing. Try the following for your helper:
def translate_directory
current_page.data.dir.join(' ')
end
My bad. Using .map instead of .each fix the problem, then use .join makes the array a big string.
In a Yaml data file aaa.yml I have:
yyy: |
[foo](http://example.com) bar.
I want to pull this data from a Haml file (zzz.html.haml).
1. If I do zzz.html.haml:
%p
= data.aaa.yyy
Middleman renders zzz.html:
<p> [foo](http://example.com) bar</p>
2. If I do:
%p
:markdown
= data.aaa.yyy
Middleman renders:
<p>= data.aaa.yyy</p>
How can I make it render:
<p>foo bar</p>
?
You have a string that contains markdown, and you want to render that markdown and include the result in your output.
One way would be to use the Haml :markdown filter. You can’t use normal Haml syntax inside a filter (like you’ve tried), but you can use interpolation inside #{...}, so you could do
:markdown
#{data.aaa.yyy}
A better way, if the string is a standalone chunk, might be to create a helper method that renders markdown, and call that.
Wherever you have your helpers add something like:
def markdown s
# I'm using kramdown here, but you can use whatever processor you prefer.
Kramdown::Document.new(s).to_html
end
Then in your Haml:
= markdown(data.aaa.yyy)
Yay! Turns out there's this helper, which was already in my config.rb but didn't work by itself:
def markdown(text)
Tilt['markdown'].new { text }.render
end
When I installed this helper (from #matt's answer) with the first one:
def markdown s
Kramdown::Document.new(s).to_html
end
Then = markdown(foo.bar) worked, which made my day!! :D
I'm working on an application that creates random sentences. I have it working as a console application, and want to make a Sinatra app which lets me display the sentences on the browser.
I have a variable #grammar that is populated from a form. I want to pass this into a method a few methods which work together to take in a string and generate a random sentence from it using a lot of logic. My rsg.erb file looks like this.
Where 'The waves portend like big yellow flowers tonight.' is the output of the expand method. I would like to display this on the erb file so it is displayed on the browser.
How can I do that?
Can you try this:
<%= #grammar %>
<%-# Assigning values to the variables in first step %>
<%-
rds = read_grammar_defs(#grammar) #get text from file and parse
sds = rds.map { |rd| split_definition rd} #use split definition to make array of strings
tgh = to_grammar_hash(sds) #create hash
rs = expand(tgh) #create sentence
%>
<%-# Printing it in second step %>
<%= rs %>
How would you make an erb template that has human readable json?
The following code works, but it makes a flat json file
default.rb
default['foo']['bar'] = { :herp => 'true', :derp => 42 }
recipe.rb
template "foo.json" do
source 'foo.json.erb'
variables :settings => node['foo']['bar'].to_json
action :create
end
foo.json.erb
<%= #settings %>
Similar SO questions
Chef and ruby templates - how to loop though key value pairs?
How can I "pretty" format my JSON output in Ruby on Rails?
As pointed out by this SO Answer .erb templates are great for HTML, and XML, but is not good for json.
Luckily, CHEF uses its own json library which has support for this using .to_json_pretty
#coderanger in IRC, pointed out that you can use this library right inside the recipe. This article shows more extensively how to use chef helpers in recipes.
default.rb
# if ['foo']['bar'] is null, to_json_pretty() will error
default['foo']['bar'] = {}
recipe/foo.rb
pretty_settings = Chef::JSONCompat.to_json_pretty(node['foo']['bar'])
template "foo.json" do
source 'foo.json.erb'
variables :settings => pretty_settings
action :create
end
Or more concise as pointed out by YMMV
default.rb
# if ['foo']['bar'] is null, to_json_pretty() will error
default['foo']['bar'] = {}
recipe/foo.rb
template "foo.json" do
source 'foo.json.erb'
variables :settings => node['foo']['bar']
action :create
end
templates/foo.json.erb
<%= Chef::JSONCompat.to_json_pretty(#settings) %>
Something like this would also work:
file "/var/my-file.json" do
content Chef::JSONCompat.to_json_pretty(node['foo']['bar'].to_hash)
end
<%= Chef::JSONCompat.to_json_pretty(#settings) %> Works like Charm !!
I have the following line in my erb template:
SetEnv <%= name %> <%= value %>
The output from this line looks like this...
SetEnv SomeNameSomeValue
There is no whitespace between the name and value items.
I want it to output this:
SetEnv SomeName SomeValue
I've found lots of articles explaining how to get erb files to strip unwanted whitespace, but I want the whitespace. How do I get the whitespace to stay in place?
How about <%= "#{name} #{value}" %>?