init import from old mailr project (http://svn.littlegreen.org/mailr/trunk)

app/helpers/application_helper.rb

@@ -0,0 +1,137 @@
+# The methods added to this helper will be available to all templates in the application.
+module ApplicationHelper
+  
+  protected 
+
+  def format_datetime(datetime)
+    datetime.strftime "%d.%m.%Y %H:%M"
+  end
+
+  def errors_base(form_name)
+    errors = instance_variable_get("@#{form_name}").errors.on_base()
+    errors_out = ""
+    if errors
+      errors = [errors] unless errors.is_a? Array
+      errors.each do |e|
+        errors_out << "<span class=\"error\">#{e}</span>"
+      end
+    end
+    errors_out
+  end
+
+  # Useful abstraction for form input fields - combines an input field with error message (if any)
+  # and writes an appropriate style (for errors)
+  # Usage:
+  #   form_input :text_field, 'postform', 'subject'
+  #   form_input :text_area, 'postform', 'text', 'Please enter text:', 'cols' => 80
+  #   form_input :hidden_field, 'postform', 'topic_id'
+  def form_input(helper_method, form_name, field_name, prompt = field_name.capitalize, options = {})
+    case helper_method.to_s
+    when 'hidden_field'
+      self.hidden_field(form_name, field_name)
+    when /^.*button$/
+      <<-EOL
+      <tr><td class="button" colspan="2">
+        #{self.send(helper_method, form_name, prompt, options)}
+      </td></tr>
+      EOL
+    else
+      field = (
+        if :select == helper_method
+          self.send(helper_method, form_name, field_name, options.delete('values'), options)
+        elsif :collection_select == helper_method
+          self.send(helper_method, form_name, field_name, options.delete('collection'), options.delete('value_method'), options.delete('text_method'), options)
+        else
+          self.send(helper_method, form_name, field_name, options)
+        end)
+      errors = instance_variable_get("@#{form_name}").errors[field_name] unless instance_variable_get("@#{form_name}").nil?
+      errors = Array.new if errors.nil?
+      errors_out = ""
+      if errors
+        errors = [errors] unless errors.is_a? Array
+        errors.each do |e|
+          errors_out << "<span class=\"error\">#{e}</span>"
+        end
+      end
+      if options['class'] == 'two_columns'
+        <<-EOL
+        <tr class="two_columns">
+          <td class="prompt"><label>#{prompt}:</label></td>
+          <td class="value">#{field}#{errors_out}</td>
+        </tr>
+        EOL
+      else
+        <<-EOL
+        <tr><td class="prompt"><strong>#{prompt}:</strong></td></tr>
+        <tr><td class="value">#{field}#{errors_out}</td></tr>
+        EOL
+      end
+    end
+  end
+
+  # Helper method that has the same signature as real input field helpers, but simply displays 
+  # the value of a given field enclosed within <p> </p> tags.
+  # Usage:
+  #   <%= form_input :read_only_field, 'new_user', 'name', _('user_name')) %>
+  def read_only_field(form_name, field_name, html_options)
+    "<span #{attributes(html_options)}>#{instance_variable_get('@' + form_name)[field_name]}</span>"
+  end
+
+  def submit_button(form_name, prompt, html_options)
+    %{<input name="submit" type="submit" value="#{prompt}" />}
+  end
+
+  # Converts a hash to XML attributes string. E.g.:
+  #  to_attributes('a' => 'aaa', 'b' => 1)
+  #  => 'a="aaa" b="1" '
+  def attributes(hash)
+    hash.keys.inject("") { |attrs, key| attrs + %{#{key}="#{hash[key]}" } }
+  end
+    
+  def initListClass
+    @itClass = 1
+  end
+  
+  def popListClass
+    ret = getListClass
+    @itClass = @itClass + 1
+    return ret
+  end
+  
+  def getListClass
+    return "even" if @itClass%2 == 0
+    return "odd" if @itClass%2 == 1
+  end
+  
+  def get_meta_info
+    '<meta name="rating" content="General">'
+    '<meta name="robots" content="Index, ALL">'
+    '<meta name="description" content="">'
+    '<meta name="keywords" content="">'
+    '<meta name content="">'
+  end
+    
+  def user
+    @user = Customer.find(@session["user"]) if @user.nil?
+    @user
+  end
+
+  def link_main 
+    link_to(_('Contacts'), :controller => '/contacts/contact', :action => 'list') 
+  end
+
+  def alternator
+    if @alternator.nil?
+      @alternator = 1
+    end
+    
+    @alternator = -@alternator
+    
+    if @alternator == -1
+      return "even"
+    else
+      return "odd"
+    end
+  end
+
+end