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49
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1 package Form::Container;
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2 use strict;
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3 use Common;
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4 use Form::Filter;
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5 use base qw(Form::Item);
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6
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7 BEGIN {
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8 DeclareProperty Schema => ACCESS_READ;
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9 DeclareProperty Children => ACCESS_READ;
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10 }
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11
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12 sub CTOR {
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13 my ($this,%args) = @_;
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14 $args{Schema} or die new Exception('A schema is required');
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15
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16 $this->SUPER::CTOR(@args{qw(Id Form Parent Attributes)});
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17 $this->{$Schema} = $args{Schema};
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18 }
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19
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20 sub ResolveItem {
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21 my ($this,$ItemId) = @_;
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22
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23 if (my $schemaChild = $this->{$Schema}->FindChild($ItemId->Name)) {
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24 if ($schemaChild->isMulti) {
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25 defined $ItemId->InstanceID or die new Exception('Instance id is required for a muti element');
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26 if (my $child = $this->{$Children}{$ItemId->Name}[$ItemId->InstanceID]){
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27 return $child;
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28 } else {
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29 return undef if not $this->Form->AutoCreate;
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30 return $this->{$Children}{$ItemId->Name}[$ItemId->InstanceID] = $this->Form->CreateInstance($schemaChild,$ItemId,$this);
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31 }
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32
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33 } else {
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34 defined $ItemId->InstanceID and die new Exception('The child is a single element',$this->Id->Canonical,$ItemId->Name);
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35 if(my $child = $this->{$Children}{$ItemId->Name}) {
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36 return $child;
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37 } else {
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38 return undef if not $this->Form->AutoCreate;
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39 return $this->{$Children}{$ItemId->Name} = $this->Form->CreateInstance($schemaChild,$ItemId,$this);
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40 }
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41 }
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42 } else {
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43 die new Exception('The requested item isn\'t exists in the schema', $this->Id->Canonical,$ItemId->Name);
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44 }
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45 }
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46
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47 sub isEmpty {
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48 my ($this) = @_;
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49
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50 foreach my $child (values %{$this->{$Children} || {} }) {
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51 if (ref $child eq 'ARRAY') {
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52 foreach my $inst (@$child) {
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53 return 0 if not $child->isEmpty;
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54 }
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55 } else {
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56 return 0 if not $child->isEmpty;
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57 }
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58 }
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59
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60 return 1;
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61 }
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62
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63 =pod
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64 Получает дочерние контенеры в виде списка, при том только не пустые контейнеры.
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65 Если дочернний контейнер не множественный, то список будет состоять из одного элемента.
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66 =cut
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67 sub GetChild {
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68 my ($this,$name) = @_;
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69 return unless exists $this->{$Children}{$name};
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70 return( grep $_, map { UNIVERSAL::isa($_,'ARRAY') ? @{$_} : $_ } $this->{$Children}{$name} );
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71 }
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72
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73 =pod
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74 Выполняет фильтры по схеме для себя и всех детей.
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75 Фильтры определяются по схеме и вызываются в различнх контекстах
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76
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77 * сначала для группы,
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78 * потом для детишек, причем если
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79 * детишки множественные, то
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80 * снсчала для набора детишек, а потом
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81 * для каждого в отдельности
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82 =cut
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83 sub Validate {
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84 my ($this,$rhDisableFilters) = @_;
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85
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86 $rhDisableFilters ||= {};
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87
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88 my @errors;
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89
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90 foreach my $filter (grep {$_->SUPPORTED_CONTEXT & (Form::Filter::CTX_SINGLE) and not exists $rhDisableFilters->{$_}} map {$_->Instance} $this->{$Schema}->Filters) {
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91 my $result = $filter->Invoke($this,Form::Filter::CTX_SINGLE | Form::Filter::CTX_EXISTENT,$this->{$Schema});
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92 if ($result->State == Form::FilterResult::STATE_SUCCESS_STOP) {
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93 return ();
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94 } elsif ($result->State == Form::FilterResult::STATE_ERROR) {
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95 push @errors,$result;
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96 }
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97 }
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98
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99 CHILD_LOOP: foreach my $schemaChild ($this->{$Schema}->Children) {
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100
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101 if ($schemaChild->isMulti) {
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102 my %DisableFilters;
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103 foreach my $filter (grep {$_->SUPPORTED_CONTEXT & Form::Filter::CTX_SET} map {$_->Instance} $schemaChild->Filters) {
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104
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105 my $result = $filter->Invoke($this->{$Children}{$schemaChild->Name},Form::Filter::CTX_SET,$schemaChild,$this);
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106 if ($result->State == Form::FilterResult::STATE_ERROR) {
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107 push @errors,$result;
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108 # не проверять другие фильтры вообще
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109 next CHILD_LOOP;
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110 } elsif ($result->State == Form::FilterResult::STATE_SUCCESS_STOP) {
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111 # не проверять другие фильтры вообще
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112 next CHILD_LOOP;
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113 } elsif ($result->State == Form::FilterResult::STATE_SUCCESS_STAY) {
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114 # не проверять данный фильтр на каждом экземпляре
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115 $DisableFilters{$filter} = 1;
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116 } else {
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117 # STATE_SUCCESS - все ок
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118 }
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119 }
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120
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121 $_ and push @errors,$_->Validate(\%DisableFilters) foreach grep !$_->isEmpty, $this->GetChild($schemaChild->Name);
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122
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123 } else {
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124 my %DisableFilters;
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125
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126 # проверяем фильтры, которые могут применяться на несуществующем значении
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127 foreach my $filter (grep { $_->SUPPORTED_CONTEXT & Form::Filter::CTX_SINGLE and not $_->SUPPORTED_CONTEXT & Form::Filter::CTX_EXISTENT} map {$_->Instance} $schemaChild->Filters) {
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128 my $result = $filter->Invoke($this->{$Children}{$schemaChild->Name},Form::Filter::CTX_SINGLE,$schemaChild,$this);
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129
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130 if ($result->State == Form::FilterResult::STATE_ERROR) {
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131 push @errors,$result;
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132 # не проверять другие фильтры вообще
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133 next CHILD_LOOP;
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134 } elsif ($result->State == Form::FilterResult::STATE_SUCCESS_STOP) {
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135 # не проверять другие фильтры вообще
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136 next CHILD_LOOP;
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137 } else {
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138 # STATE_SUCCESS(_STAY) - все ок
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139 $DisableFilters{$filter} = 1;
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140 }
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141 }
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142
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143 # если значение существует, то применяем оставшиеся фильтры
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144 push @errors,$this->{$Children}{$schemaChild->Name}->Validate(\%DisableFilters) if $this->{$Children}{$schemaChild->Name};
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145 }
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146
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147 }
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148
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149 return @errors;
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150 }
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151
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152 sub Dispose {
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153 my ($this) = @_;
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154
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155 foreach my $child (values %{ $this->{$Children} || {} }) {
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156 if (ref $child eq 'ARRAY') {
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157 foreach my $inst (@$child) {
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158 $inst->Dispose;
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159 }
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160 } else {
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161 die new IMPL::Exception("Child is null",%{ $this->{$Children} }) if not $child;
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162 $child->Dispose;
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163 }
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164 }
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165
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166 delete @$this{$Schema,$Children};
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167
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168 $this->SUPER::Dispose;
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169 }
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170 1;
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