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_fieldsObject

Accessor for all fields



108
109
110
111
112
113
# File 'lib/rails_admin/config/has_fields.rb', line 108

def all_fields
  ((ro_fields = _fields(true)).select(&:defined).presence || ro_fields).collect do |f|
    f.section = self
    f
  end
end

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

configure field(s) from the default group in a section without changing the original order.



43
44
45
# File 'lib/rails_admin/config/has_fields.rb', line 43

def configure(name, type = nil, &block)
  [*name].each { |field_name| field(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)



63
64
65
66
67
# File 'lib/rails_admin/config/has_fields.rb', line 63

def exclude_fields(*field_names, &block)
  block ||= proc { |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.



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
38
39
40
# File 'lib/rails_admin/config/has_fields.rb', line 8

def field(name, type = nil, add_to_section = true, &block)
  field = _fields.detect { |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 && !field.instance_variable_get("@#{field.name}_registered").is_a?(Proc)
  # 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, nil)).last

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

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

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



83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
# File 'lib/rails_admin/config/has_fields.rb', line 83

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

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

#fields_of_type(type, &block) ⇒ Object

Defines configuration for fields by their type.



103
104
105
# File 'lib/rails_admin/config/has_fields.rb', line 103

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

#include_all_fieldsObject



73
74
75
# File 'lib/rails_admin/config/has_fields.rb', line 73

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 optional block to each (through a call to fields), or include fields by conditions if no field names



49
50
51
52
53
54
55
56
57
58
59
60
# File 'lib/rails_admin/config/has_fields.rb', line 49

def include_fields(*field_names, &block)
  if field_names.empty?
    _fields.select { |f| f.instance_eval(&block) }.each do |f|
      next if f.defined

      f.defined = true
      f.order = _fields.count(&:defined)
    end
  else
    fields(*field_names, &block)
  end
end

#possible_fieldsObject



121
122
123
# File 'lib/rails_admin/config/has_fields.rb', line 121

def possible_fields
  _fields(true)
end

#visible_fieldsObject

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



116
117
118
119
# File 'lib/rails_admin/config/has_fields.rb', line 116

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