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@toretore
Created March 21, 2009 16:35
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module ApplicationHelper
def labelled_form_for(*attrs, &proc)
options = attrs.last.is_a?(Hash) ? attrs.pop : {}
object = attrs.pop
options.reverse_merge!(
:builder => LabellingFormBuilder
)
form_for(object, options, &proc)
end
def labelled_fields_for(*a, &b)
options = a.last.is_a?(Hash) ? a.pop : {}
object = a.pop
options.reverse_merge!(
:builder => LabellingFormBuilder
)
fields_for(object, options, &b)
end
end
ActionView::Base.field_error_proc = proc { |input, instance| input }
class LabellingFormBuilder < ActionView::Helpers::FormBuilder
@@_name_id_counter = 0
def initialize(*a, &b)
@@_name_id_counter += 1
super(*a, &b)
end
def text_field(name, opts={})
opts[:id] ||= "#{idize object_name}_#{name}"
p_opts = extract_p_opts(opts)
add_class(p_opts, "text")
p(name, super(name, opts), p_opts)
end
def text_area(name, opts={})
opts[:id] ||= "#{idize object_name}_#{name}"
p_opts = extract_p_opts(opts)
add_class(p_opts, "textarea")
p(name, super(name, opts), p_opts)
end
def check_box(name, opts={})
opts[:id] ||= "#{idize object_name}_#{name}"
p_opts = extract_p_opts(opts)
add_class(p_opts, "checkbox")
p(name, super(name, opts), p_opts)
end
def submit_tag(value, opts={})
p_opts = extract_p_opts(opts)
tag('p', tag('input', opts.merge(:value => value, :type => 'submit')), {:class => 'button'}.merge(p_opts))
end
def file_field(name, opts={})
opts[:id] ||= "#{idize object_name}_#{name}"
p_opts = extract_p_opts(opts)
add_class(p_opts, "file")
p(name, super(name, opts), p_opts)
end
def password_field(name, opts={})
opts[:id] ||= "#{idize object_name}_#{name}"
p_opts = extract_p_opts(opts)
add_class(p_opts, "password")
p(name, super(name, opts), p_opts)
end
def select(name, choices, opts={}, html_opts={})
html_opts[:id] ||= "#{idize object_name}_#{name}"
p_opts = extract_p_opts(opts)
add_class(p_opts, "select")
add_class(p_opts, "multiple") if html_opts[:multiple]
p(name, super(name, choices, opts, html_opts), p_opts)
end
def date_select(name, opts={}, html_opts={})
opts[:id] ||= "#{idize object_name}_#{name}"
p_opts = extract_p_opts(opts)
add_class(p_opts, "select-date")
p(name, super(name, opts, html_opts), p_opts)
end
def submit(value='Save', opts={})
if opts.delete(:label)
p_opts = extract_p_opts(opts)
p('submit', super(value, opts), {:class => 'submit button'}.merge(p_opts))
else
tag('p', super(value, opts), :class => 'submit button')
end
end
alias default_fields_for fields_for
def fields_for(*a, &b)
options = a.last.is_a?(Hash) ? a.pop : {}
options.reverse_merge!(
:builder => LabellingFormBuilder
)
super(*(a << options), &b)
end
def next
@@_name_id_counter += 1
end
private
def extract_p_opts(opts)
p_opts = opts.delete(:p) || {}
p_opts[:label] = opts.delete(:label)
p_opts[:class] = p_opts[:class].blank? ? "required" : "#{p_opts[:class]} required" if opts.delete(:required)
p_opts[:opts] = opts
p_opts
end
def p(name, content, opts={})
name = name.to_s
label = opts.delete(:label)
label ||= object.class.human_attribute_name(name)
optz = opts.delete(:opts) || {}
opts[:class] = "#{opts[:class].blank? ? '' : opts[:class]+' '}error" if object.errors.on(name)
tag('p', tag('label', label, :for => optz[:id] || "#{idize object_name}_#{name}") + content, opts)
end
def add_class(opts, class_name)
opts[:class] = opts[:class].blank? ? class_name : "#{opts[:class]} #{class_name}"
end
def tag(name, *args, &b)
MyOwnFreakingBuilderThatDoesntRelyOnMethodMissing.new.tag!(name, *args, &b)
end
#foo[bar][baz][] => foo_bar_baz_1
def idize(s)
"#{s}".gsub(/\[([^\[]+)\]/, '_\1').gsub(/\[\]/, "_#{@@_name_id_counter}")
end
end
class MyOwnFreakingBuilderThatDoesntRelyOnMethodMissing
def tag!(name, *opts, &b)
attrs = opts.last.is_a?(Hash) ? opts.pop : {}
t = "<#{name}"
t << (attrs.empty? ? '' : ' '+attrs.map{|k,v| "#{__h k}=\"#{__h v}\"" }.join(' '))
if opts.first
t << ">#{opts.first}<\/#{name}>"
elsif block_given?
t << ">#{yield}<\/#{name}>"
else
t << '/>'
end
t
end
private
def method_missing(*what, &ever)
tag!(*what, &ever)
end
def __h(html)
"#{html}".gsub('&', '&amp;').gsub('<', '&lt;').gsub('>', '&gt;').gsub(/"|'/, '&quot;')
end
end
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