Class: TemplatesController

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# File 'app/controllers/templates_controller.rb', line 97

def destroy
  @template = Template.find(params[:id])
  auth!
  if @template.destroy
    respond_to do |format|
      format.html { redirect_to(templates_url) }
      format.xml  { head :ok }
    end
  else
    redirect_to(@template, :notice => t(:cannot_delete_template))
    return 
  end
end

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# File 'app/controllers/templates_controller.rb', line 46

def edit
  @template = Template.find(params[:id])
  auth!
  if(@template.media.empty?)
    @template.media.build
  end
end

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# File 'app/controllers/templates_controller.rb', line 176

def import
  xml_file = params[:descriptor]
  image_file = params[:image]
  @template = Template.new(params[:template])
  auth!
  
  if xml_file.nil? || image_file.nil?
    respond_to do |format|
      format.html { render :action => "new" }
      format.xml  { render :xml => @template.errors, :status => :unprocessable_entity }
    end
  else
    begin
      xml_data = xml_file.read
      if !xml_data.blank? && @template.import_xml(xml_data)
        @template.media.build({:key=>"original", :file => image_file})
      end  
    rescue REXML::ParseException
      raise t(:template_import_error)
    end

    respond_to do |format|
      if @template.save
        format.html { redirect_to(@template, :notice => t(:template_created)) }
        format.xml  { render :xml => @template, :status => :created, :location => @template }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @template.errors, :status => :unprocessable_entity }
      end
    end
  end
end

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# File 'app/controllers/templates_controller.rb', line 7

def index
  @templates = Template.all
  auth!

  respond_to do |format|
    format.html # index.html.erb
    format.xml  { render :xml => @template }
    format.js { }
  end
end

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# File 'app/controllers/templates_controller.rb', line 34

def new
  @template = Template.new
  auth!
  @template.media.build

  respond_to do |format|
    format.html # new.html.erb
    format.xml  { render :xml => @template }
  end
end

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# File 'app/controllers/templates_controller.rb', line 113

def preview
  @template = Template.find(params[:id])
  auth!(:action => :read)

  if stale?(:last_modified => @template.last_modified.utc, :etag => @template, :public => true)
    # Hide the fields if the hide_fields param is set,
    # show them by default though.
    @hide_fields = false
    if !params[:hide_fields].nil?
      @hide_fields = [true, "true", 1, "1"].include?(params[:hide_fields])
    end

    # Hide the field names if the hide_text param is set,
    # show them by default though.
    @hide_text = false
    if !params[:hide_text].nil?
      @hide_text = [true, "true", 1, "1"].include?(params[:hide_text])
    end

    @only_fields = []
    if !params[:fields].nil?
      @only_fields = params[:fields].split(',').map{|i| i.to_i}
    end
    
    jpg =  Mime::Type.lookup_by_extension(:jpg)  #JPG is getting defined elsewhere.
    if([jpg, Mime::PNG, Mime::HTML].include?(request.format))
      @image = nil
      @image = @template.preview_image(@hide_fields, @hide_text, @only_fields)

      # Resize the image if needed.
      # We do this post-field drawing because RMagick seems to struggle with small font sizes.
      if  !params[:height].nil? || !params[:width].nil?
        require 'concerto_image_magick'
        @image = ConcertoImageMagick.resize(@image, params[:width].to_i, params[:height].to_i)
      end

      case request.format
      when jpg
        @image.format = "JPG"
      when Mime::PNG
        @image.format = "PNG"
      end

      data = nil
      data = @image.to_blob

      send_data data,
                :filename => "#{@template.name.underscore}.#{@image.format.downcase}_preview",
                :type => @image.mime_type, :disposition => 'inline'
    else
      respond_to do |format|
        format.svg
      end
    end
  end
end

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# File 'app/controllers/templates_controller.rb', line 21

def show
  @template = Template.find(params[:id])
  auth!

  respond_to do |format|
    format.html # show.html.erb
    format.xml  { render :xml => @template.to_xml(:include => [:positions]) }
    format.js { }
  end
end

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# File 'app/controllers/templates_controller.rb', line 77

def update
  @template = Template.find(params[:id])
  auth!
  @template.media.each do |media|
    media.key = "original"
  end

  respond_to do |format|
    if @template.update_attributes(template_params)
      format.html { redirect_to(@template, :notice => t(:template_updated)) }
      format.xml  { head :ok }
    else
      format.html { render :action => "edit" }
      format.xml  { render :xml => @template.errors, :status => :unprocessable_entity }
    end
  end
end