Class: Trestle::Table::Column::Renderer

Inherits:
Object
  • Object
show all
Defined in:
lib/trestle/table/column.rb

Instance Method Summary collapse

Constructor Details

#initialize(column, template) ⇒ Renderer

Returns a new instance of Renderer.



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# File 'lib/trestle/table/column.rb', line 44

def initialize(column, template)
  @column, @template = column, template
end

Instance Method Details

#classes ⇒ Object 



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# File 'lib/trestle/table/column.rb', line 95

def classes
  [options[:class], ("text-#{options[:align]}" if options[:align])].compact
end

#content(instance) ⇒ Object 



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# File 'lib/trestle/table/column.rb', line 79

def content(instance)
  value = column_value(instance)
  content = @template.format_value(value, options)

  if value.respond_to?(:id) && options[:link] != false
    # Column value was a model instance (e.g. from an association).
    # Automatically link to instance's admin if available
    content = @template.admin_link_to(content, value)
  elsif options[:link]
    # Explicitly link to the specified admin, or the table's admin
    content = @template.admin_link_to(content, instance, admin: options[:admin] || table.admin)
  end

  content
end

#data ⇒ Object 



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# File 'lib/trestle/table/column.rb', line 99

def data
  options[:data]
end

#header ⇒ Object 



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# File 'lib/trestle/table/column.rb', line 70

def header
  return if options.key?(:header) && options[:header].in?([nil, false])

  header = @column.header
  header = @template.instance_exec(&header) if header.respond_to?(:call)
  header = @template.sort_link(header, @column.sort_field, @column.sort_options) if @column.sortable?
  header
end

#render(instance) ⇒ Object 



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# File 'lib/trestle/table/column.rb', line 48

def render(instance)
  @template.content_tag(:td, content(instance), class: classes, data: data)
end

#render? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/trestle/table/column.rb', line 52

def render?
  if options.key?(:if)
    if options[:if].respond_to?(:call)
      @template.instance_exec(&options[:if])
    else
      options[:if]
    end
  elsif options.key?(:unless)
    if options[:unless].respond_to?(:call)
      !@template.instance_exec(&options[:unless])
    else
      !options[:unless]
    end
  else
    true
  end
end