Module: RailsAdmin::Config::HasFields

Included in:
Sections::Base
Defined in:
lib/rails_admin/config/has_fields.rb

Overview

Provides accessors and autoregistering of model’s fields.

Instance Method Summary collapse

Instance Method Details

#all_fields ⇒ Object

Accessor for all fields



106
107
108
 
# File 'lib/rails_admin/config/has_fields.rb', line 106

def all_fields
  ((ro_fields = _fields(true)).select(&:defined).presence || ro_fields).map{|f| f.section = self; f }
end

#configure(name, type = nil, &block) ⇒ Object

configure a field without adding it.



40
41
42
 
# File 'lib/rails_admin/config/has_fields.rb', line 40

def configure(name, type = nil, &block)
  field(name, type, false, &block)
end

#exclude_fields(*field_names, &block) ⇒ Object Also known as: exclude_fields_if

exclude fields by name or by condition (block)



60
61
62
63
64
 
# File 'lib/rails_admin/config/has_fields.rb', line 60

def exclude_fields(*field_names, &block)
  block ||= lambda { |f| field_names.include?(f.name) }
  _fields.each {|f| f.defined = true } if _fields.select(&:defined).empty?
  _fields.select {|f| f.instance_eval &block }.each {|f| f.defined = false }
end

#field(name, type = nil, add_to_section = true, &block) ⇒ Object

Defines a configuration for a field.



6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
 
# File 'lib/rails_admin/config/has_fields.rb', line 6

def field(name, type = nil, add_to_section = true, &block)
  field = _fields.find {|f| name == f.name }

  # some fields are hidden by default (belongs_to keys, has_many associations in list views.)
  # unhide them if config specifically defines them
  field.show if field.try(:hidden?)

  # Specify field as virtual if type is not specifically set and field was not
  # found in default stack
  if field.nil? && type.nil?
    field = (_fields << RailsAdmin::Config::Fields::Types.load(:string).new(self, name, {})).last

  # Register a custom field type if one is provided and it is different from
  # one found in default stack
  elsif !type.nil? && type != (field.nil? ? nil : field.type)
    _fields.delete(field) unless field.nil?
    properties = abstract_model.properties.find {|p| name == p[:name] }
    field = (_fields <<  RailsAdmin::Config::Fields::Types.load(type).new(self, name, properties)).last
  end

  # If field has not been yet defined add some default properties
  if add_to_section && !field.defined
    field.defined = true
    field.order = _fields.select(&:defined).length
  end

  # If a block has been given evaluate it and sort fields after that
  if block
    field.instance_eval &block
  end
  field
end

#fields(*field_names, &block) ⇒ Object

Returns all field configurations for the model configuration instance. If no fields have been defined returns all fields. Defined fields are sorted to match their order property. If order was not specified it will match the order in which fields were defined.

If a block is passed it will be evaluated in the context of each field



81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
 
# File 'lib/rails_admin/config/has_fields.rb', line 81

def fields(*field_names,&block)
  return all_fields if field_names.empty? && !block

  if field_names.empty?
    defined = _fields.select {|f| f.defined }
    defined = _fields if defined.empty?
  else
    defined = field_names.map{|field_name| _fields.find {|f| f.name == field_name } }
  end
  defined.map do |f|
    unless f.defined
      f.defined = true
      f.order = _fields.select(&:defined).length
    end
    f.instance_eval(&block) if block
    f
  end
end

#fields_of_type(type, &block) ⇒ Object

Defines configuration for fields by their type.



101
102
103
 
# File 'lib/rails_admin/config/has_fields.rb', line 101

def fields_of_type(type, &block)
  _fields.select {|f| type == f.type }.map! {|f| f.instance_eval &block } if block
end

#include_all_fields ⇒ Object 



70
71
72
 
# File 'lib/rails_admin/config/has_fields.rb', line 70

def include_all_fields
  include_fields_if() { true }
end

#include_fields(*field_names, &block) ⇒ Object Also known as: include_fields_if

include fields by name and apply an optionnal block to each (through a call to fields), or include fields by conditions if no field names



46
47
48
49
50
51
52
53
54
55
56
57
 
# File 'lib/rails_admin/config/has_fields.rb', line 46

def include_fields(*field_names, &block)
  if field_names.empty?
    _fields.select {|f| f.instance_eval &block }.each do |f|
      unless f.defined
        f.defined = true
        f.order = _fields.select(&:defined).length
      end
    end
  else
    fields(*field_names, &block)
  end
end

#visible_fields ⇒ Object

Get all fields defined as visible, in the correct order.



111
112
113
114
 
# File 'lib/rails_admin/config/has_fields.rb', line 111

def visible_fields
  i = 0
  all_fields.map {|f| f.with(bindings) }.select(&:visible?).sort_by{|f| [f.order, i += 1] } # stable sort, damn
end