Listing ??

rubyonrails-talk
1

Hi RoR Developers

I got tiny problem here. Actually I asked before but there was not any answer and asking again.

I have template.yml file.] get_config=YAML.load(File.open("..../template.yml")) $temp1path=get_config["template"]["templatename1"]

I can get the values by using matrix one by one like above but how can I list only right side I mean this is my template.yml file

template:   templatename1: template_of_roster.xml   templatename2: template_of_roster1.xml   templatename3: template_of_roster2.xml   templatename4: template_of_roster3.xml

only this column. template_of_roster.xml template_of_roster1.xml template_of_roster2.xml template_of_roster3.xml

thank you for any help or commend.

2

You'll probably find that get_config.class == Hash so you can get the values with:    get_config["template"].values which gives you an Array over which you could iterate with .each

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com

3

Rob Biedenharn wrote:

4

Rob Biedenharn wrote: can I template_of_roster.xml template_of_roster1.xml template_of_roster2.xml template_of_roster3.xml

thank you for any help or commend.

You'll probably find that get_config.class == Hash so you can get the values with:    get_config["template"].values which gives you an Array over which you could iterate with .each

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com

I wrote something like this require 'yaml' get_config=YAML.load(File.open("C:/yotta/config/template.yml"))

This is a boolean expression, it doesn't *do* anything to the get_config object

get_config.class == Hash

You should save this in a variable

get_config["template"].values get_config.each do |k,v| puts v.inspect end

or just do:    puts get_config["template"].values

result {"templatename1"=>"template_of_roster.xml", "templatename2"=>"template_of_roster1.xml", "templatename3"=>"template_of_roster2.xml", "templatename4"= "template_of_roster3.xml"}

why I can not get only second column. I only want this side. template_of_roster.xml template_of_roster1.xml template_of_roster2.xml template_of_roster3.xml

how should I change my codes. thank you very much for your help Rob Biedenharn ..

You're really not having issues with Rails, but with plain old Ruby (and YAML from the standard library, of course).

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com

5

hmm how can I convert to string I mean I know to_s but how will I use it here. I want to assign the values to variable. I have selection which is taken these values.

<%             templateOptions = ""             @templates.each do |i|                 templateOptions = templateOptions + "<option value=#{i}>#{i}</option>"             end             %>             <%=select_tag "templates", templateOptions %>

thank you very much again..

6

hmm how can I convert to string I mean I know to_s but how will I use it here. I want to assign the values to variable. I have selection which is taken these values.

<%            templateOptions = ""            @templates.each do |i|                templateOptions = templateOptions + "<option value=#{i}>#{i}</option>"            end            %>            <%=select_tag "templates", templateOptions %>

thank you very much again..

<%= select_tag "templates", options_for_select(get_config["template"].values) %>

Even if you were to build it yourself, you might find Enumerable#map (aka, Enumerable#collect) and Array#join useful:

templateOptions = @templates.map {|t| %{<option value="#{t}">#{t}</

} }.join

These particular strings aren't likely to pose a problem, but you should also know about ERB::Util#html_escape (often seen in views as just h) http://api.rubyonrails.org/classes/ERB/Util.html#M000148

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com

7

-Rob

Rob Biedenharn http://agileconsultingllc.com Rob@AgileConsultingLLC.com

thank you very much.