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1 | package Reaction::UI::ViewPort::Object; |
2 | |
3 | use Reaction::Class; |
4 | |
5 | use aliased 'Reaction::UI::ViewPort::Field::Text'; |
6 | use aliased 'Reaction::UI::ViewPort::Field::Number'; |
7 | use aliased 'Reaction::UI::ViewPort::Field::Integer'; |
8 | use aliased 'Reaction::UI::ViewPort::Field::Boolean'; |
9 | use aliased 'Reaction::UI::ViewPort::Field::String'; |
10 | use aliased 'Reaction::UI::ViewPort::Field::DateTime'; |
11 | use aliased 'Reaction::UI::ViewPort::Field::RelatedObject'; |
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12 | use aliased 'Reaction::UI::ViewPort::Field::Array'; |
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13 | use aliased 'Reaction::UI::ViewPort::Field::Collection'; |
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14 | use aliased 'Reaction::UI::ViewPort::Field::File'; |
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15 | |
16 | use aliased 'Reaction::InterfaceModel::Object' => 'IM_Object'; |
17 | |
18 | class Object is 'Reaction::UI::ViewPort', which { |
19 | |
20 | #everything is read only right now. Later I can make somethings read-write |
21 | #but first I need to figure out what depends on what so we can have decent triggers |
22 | has model => (is => 'ro', isa => IM_Object, required => 1); |
23 | has fields => (is => 'ro', isa => 'ArrayRef', lazy_build => 1); |
24 | |
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25 | has field_args => (is => 'rw'); |
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26 | has field_order => (is => 'ro', isa => 'ArrayRef'); |
27 | |
28 | has builder_cache => (is => 'ro', isa => 'HashRef', lazy_build => 1); |
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29 | has excluded_fields => (is => 'ro', isa => 'ArrayRef', lazy_build => 1); |
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30 | has computed_field_order => (is => 'ro', isa => 'ArrayRef', lazy_build => 1); |
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31 | |
32 | implements BUILD => as { |
33 | my ($self, $args) = @_; |
34 | my $field_args = delete $args->{Field}; |
35 | $self->field_args( $field_args ) if ref $field_args; |
36 | }; |
37 | |
38 | implements _build_excluded_fields => as { [] }; |
39 | implements _build_builder_cache => as { {} }; |
40 | |
41 | implements _build_fields => as { |
42 | my ($self) = @_; |
43 | my $obj = $self->model; |
44 | my $args = $self->has_field_args ? $self->field_args : {}; |
45 | my @fields; |
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46 | for my $field_name (@{ $self->computed_field_order }) { |
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47 | my $attr = $obj->meta->find_attribute_by_name($field_name); |
48 | my $meth = $self->builder_cache->{$field_name} ||= $self->get_builder_for($attr); |
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49 | my $field = $self->$meth($attr, ($args->{$field_name} || {})); |
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50 | push(@fields, $field) if $field; |
51 | } |
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52 | return \@fields; |
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53 | }; |
54 | |
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55 | implements _build_computed_field_order => as { |
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56 | my ($self) = @_; |
57 | my %excluded = map { $_ => undef } @{ $self->excluded_fields }; |
58 | #treat _$field_name as private and exclude fields with no reader |
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59 | my @names = grep { $_ !~ /^_/ && !exists($excluded{$_})} map { $_->name } |
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60 | grep { defined $_->get_read_method } $self->model->meta->parameter_attributes; |
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61 | return $self->sort_by_spec($self->field_order || [], \@names); |
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62 | }; |
63 | |
64 | override child_event_sinks => sub { |
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65 | return ( @{shift->fields}, super()); |
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66 | }; |
67 | |
68 | #candidate for shared role! |
69 | implements get_builder_for => as { |
70 | my ($self, $attr) = @_; |
71 | my $attr_name = $attr->name; |
72 | my $builder = "_build_fields_for_name_${attr_name}"; |
73 | return $builder if $self->can($builder); |
74 | if ($attr->has_type_constraint) { |
75 | my $constraint = $attr->type_constraint; |
76 | my $base_name = $constraint->name; |
77 | my $tried_isa = 0; |
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78 | my @tried; |
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79 | CONSTRAINT: while (defined($constraint)) { |
80 | my $name = $constraint->name; |
81 | $name = $attr->_isa_metadata if($name eq '__ANON__'); |
82 | if (eval { $name->can('meta') } && !$tried_isa++) { |
83 | foreach my $class ($name->meta->class_precedence_list) { |
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84 | push(@tried, $class); |
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85 | my $mangled_name = $class; |
86 | $mangled_name =~ s/:+/_/g; |
87 | my $builder = "_build_fields_for_type_${mangled_name}"; |
88 | return $builder if $self->can($builder); |
89 | } |
90 | } |
91 | if (defined($name)) { |
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92 | push(@tried, $name); |
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93 | unless (defined($base_name)) { |
94 | $base_name = "(anon subtype of ${name})"; |
95 | } |
96 | my $mangled_name = $name; |
97 | $mangled_name =~ s/:+/_/g; |
98 | my $builder = "_build_fields_for_type_${mangled_name}"; |
99 | return $builder if $self->can($builder); |
100 | } |
101 | $constraint = $constraint->parent; |
102 | } |
103 | if (!defined($constraint)) { |
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104 | confess "Can't build field ${attr_name} of type ${base_name} without " |
105 | ."$builder method or _build_fields_for_type_<type> method " |
106 | ."for type or any supertype (tried ".join(', ', @tried).")"; |
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107 | } |
108 | } else { |
109 | confess "Can't build field ${attr} without $builder method or type constraint"; |
110 | } |
111 | }; |
112 | |
113 | implements _build_simple_field => as { |
114 | my ($self, %args) = @_; |
115 | my $class = delete $args{class}; |
116 | confess("Can not build simple field without a viewport class") |
117 | unless $class; |
118 | confess("Can not build simple field without attribute") |
119 | unless defined $args{attribute}; |
120 | |
121 | my $field_name = $args{attribute}->name; |
122 | return $class->new( |
123 | ctx => $self->ctx, |
124 | model => $self->model, |
125 | location => join('-', $self->location, 'field', $field_name), |
126 | %args |
127 | ); |
128 | }; |
129 | |
130 | implements _build_fields_for_type_Num => as { |
131 | my ($self, $attr, $args) = @_; |
132 | $self->_build_simple_field(attribute => $attr, class => Number, %$args); |
133 | }; |
134 | |
135 | implements _build_fields_for_type_Int => as { |
136 | my ($self, $attr, $args) = @_; |
137 | #XXX |
138 | $self->_build_simple_field(attribute => $attr, class => Integer, %$args); |
139 | }; |
140 | |
141 | implements _build_fields_for_type_Bool => as { |
142 | my ($self, $attr, $args) = @_; |
143 | $self->_build_simple_field(attribute => $attr, class => Boolean, %$args); |
144 | }; |
145 | |
146 | #XXX |
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147 | implements _build_fields_for_type_Reaction_Types_Core_Password => as { return }; |
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148 | |
149 | implements _build_fields_for_type_Str => as { |
150 | my ($self, $attr, $args) = @_; |
151 | #XXX |
152 | $self->_build_simple_field(attribute => $attr, class => String, %$args); |
153 | }; |
154 | |
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155 | implements _build_fields_for_type_Reaction_Types_Core_SimpleStr => as { |
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156 | my ($self, $attr, $args) = @_; |
157 | $self->_build_simple_field(attribute => $attr, class => String, %$args); |
158 | }; |
159 | |
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160 | implements _build_fields_for_type_Reaction_Types_DateTime_DateTime => as { |
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161 | my ($self, $attr, $args) = @_; |
162 | $self->_build_simple_field(attribute => $attr, class => DateTime, %$args); |
163 | }; |
164 | |
165 | implements _build_fields_for_type_Enum => as { |
166 | my ($self, $attr, $args) = @_; |
167 | #XXX |
168 | $self->_build_simple_field(attribute => $attr, class => String, %$args); |
169 | }; |
170 | |
171 | implements _build_fields_for_type_ArrayRef => as { |
172 | my ($self, $attr, $args) = @_; |
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173 | $self->_build_simple_field(attribute => $attr, class => Array, %$args); |
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174 | }; |
175 | |
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176 | implements _build_fields_for_type_File => as { |
177 | my ($self, $attr, $args) = @_; |
178 | $self->_build_simple_field(attribute => $attr, class => File, %$args); |
179 | }; |
180 | |
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181 | implements _build_fields_for_type_Reaction_InterfaceModel_Object => as { |
182 | my ($self, $attr, $args) = @_; |
183 | #XXX |
184 | $self->_build_simple_field(attribute => $attr, class => RelatedObject, %$args); |
185 | }; |
186 | |
187 | implements _build_fields_for_type_Reaction_InterfaceModel_Collection => as { |
188 | my ($self, $attr, $args) = @_; |
189 | $self->_build_simple_field(attribute => $attr, class => Collection, %$args); |
190 | }; |
191 | |
192 | }; |
193 | |
194 | 1; |
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195 | |
196 | __END__; |
197 | |
198 | =head1 NAME |
199 | |
200 | Reaction::UI::ViewPort::Object |
201 | |
202 | =head1 DESCRIPTION |
203 | |
204 | =head1 ATTRIBUTES |
205 | |
206 | =head2 model |
207 | |
208 | =head2 fields |
209 | |
210 | =head2 field_args |
211 | |
212 | =head2 field_order |
213 | |
214 | =head2 builder_cache |
215 | |
216 | =head2 excluded_fields |
217 | |
218 | =head2 computed_field_order |
219 | |
220 | =head1 INTERNAL METHODS |
221 | |
222 | These methods, although stable, are subject to change without notice. These are meant |
223 | to be used only by developers. End users should refrain from using these methods to |
224 | avoid potential breakages. |
225 | |
226 | =head2 BUILD |
227 | |
228 | =head2 get_builder_for |
229 | |
230 | =head2 _build_simple_field |
231 | |
232 | =head2 _build_fields_for_type_Num |
233 | |
234 | =head2 _build_fields_for_type_Int |
235 | |
236 | =head2 _build_fields_for_type_Bool |
237 | |
238 | =head2 _build_fields_for_type_Password |
239 | |
240 | =head2 _build_fields_for_type_Str |
241 | |
242 | =head2 _build_fields_for_type_SimpleStr |
243 | |
244 | =head2 _build_fields_for_type_DateTime |
245 | |
246 | =head2 _build_fields_for_type_Enum |
247 | |
248 | =head2 _build_fields_for_type_ArrayRef |
249 | |
250 | =head2 _build_fields_for_type_Reaction_InterfaceModel_Object |
251 | |
252 | =head2 _build_fields_for_type_Reaction_InterfaceModel_Collection |
253 | |
254 | =head1 AUTHORS |
255 | |
256 | See L<Reaction::Class> for authors. |
257 | |
258 | =head1 LICENSE |
259 | |
260 | See L<Reaction::Class> for the license. |
261 | |
262 | =cut |