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adding radio buttons #13

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51ba45f
added methods for radio buttons
dantmcgowan Apr 4, 2012
8e27652
added enum_radio entry
dantmcgowan Apr 4, 2012
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8 changes: 8 additions & 0 deletions README.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -58,3 +58,11 @@ In views:
<%= f.enum_select :severity %>
<% end %>

To use radio buttons:

<%= enum_radio(@enumeration, 'severity')%>
or
<%= form_for @enumeration do |f| %>
<%= f.label :severity %>
<%= f.enum_radio :severity %>
<% end %>
125 changes: 80 additions & 45 deletions lib/enum/active_record_helper.rb
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Expand Up @@ -6,58 +6,93 @@ def field_type_with_enumerated_attribute
return (@field_type = :enum_select) if type == :enum
field_type_without_enumerated_attribute
end

alias_method_chain :field_type, :enumerated_attribute
end
end
end
end

if defined?(ActionView::Base)
module ActionView
module Helpers

#form_options_helper.rb
module FormOptionsHelper
#def select
def enum_select(object, method, options={}, html_options={})
InstanceTag.new(object, method, self, options.delete(:object)).to_enum_select_tag(options, html_options)
end
end

class InstanceTag
def to_enum_select_tag(options, html_options={})
if self.object.respond_to?(method_name.to_sym)
module ActionView
module Helpers

#form_options_helper.rb
module FormOptionsHelper
#def select
def enum_select(object, method, options={}, html_options={})
InstanceTag.new(object, method, self, options.delete(:object)).to_enum_select_tag(options, html_options)
end

def enum_radio(object, method, options={}, html_options={})
InstanceTag.new(object, method, self, options.delete(:object)).to_enum_radio_tag(options, html_options)
end
end

class InstanceTag
def to_enum_select_tag(options, html_options={})
if self.object.respond_to?(method_name.to_sym)
column = self.object.column_for_attribute(method_name)
if (value = self.object.__send__(method_name.to_sym))
options[:selected] ||= value.to_s
else
if (value = self.object.__send__(method_name.to_sym))
options[:selected] ||= value.to_s
else
options[:include_blank] = column.null if options[:include_blank].nil?
end
end
to_select_tag(column.limit, options, html_options)
end

#initialize record_name, method, self
if respond_to?(:to_tag)
def to_tag_with_enumerated_attribute(options={})
#look for an enum
if (column_type == :enum && self.object.class.respond_to?(method_name.to_sym))
to_enum_select_tag(options)
else
to_tag_without_enumerated_attribute(options)
end
end
alias_method_chain :to_tag, :enumerated_attribute
end

end

class FormBuilder
def enum_select(method, options={}, html_options={})
@template.enum_select(@object_name, method, objectify_options(options), @default_options.merge(html_options))
end
end

end
end
end
end
to_select_tag(column.limit, options, html_options)
end

def to_enum_radio_tag(options, html_options={})
if self.object.respond_to?(method_name.to_sym)
column = self.object.column_for_attribute(method_name)
if (value = self.object.__send__(method_name.to_sym))
options[:selected] ||= value.to_s
else
options[:include_blank] = column.null if options[:include_blank].nil?
end
end
values = column.limit
raise ArgumentError, "No values for enum select tag" unless values
tag_text = ''
template = options.dup
template.delete(:selected)
values.each do |enum|
opts = template.dup
opts['checked'] = 'checked' if options[:selected] and options[:selected] == enum
opts['id'] = "#{opts['id']}_#{enum}"
tag_text << to_radio_button_tag(enum, opts)
tag_text << "<label>#{enum} "
tag_text << "</label>"
end
tag_text.html_safe
end

#initialize record_name, method, self
if respond_to?(:to_tag)
def to_tag_with_enumerated_attribute(options={})
#look for an enum
if (column_type == :enum && self.object.class.respond_to?(method_name.to_sym))
to_enum_select_tag(options)
else
to_tag_without_enumerated_attribute(options)
end
end

alias_method_chain :to_tag, :enumerated_attribute
end

end

class FormBuilder
def enum_select(method, options={}, html_options={})
@template.enum_select(@object_name, method, objectify_options(options), @default_options.merge(html_options))
end

def enum_radio(method, options={}, html_options={})
@template.enum_radio(@object_name, method, objectify_options(options), @default_options.merge(html_options))
end
end

end
end
end