1 | package LATMOS::Accounts::Bases::Attributes; |
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2 | |
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3 | # $Id$ |
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4 | |
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5 | use strict; |
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6 | use warnings; |
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7 | use LATMOS::Accounts::Log; |
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8 | |
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9 | use Date::Parse; |
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10 | use DateTime; |
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11 | use DateTime::TimeZone; |
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12 | |
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13 | |
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14 | =head1 NAME |
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15 | |
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16 | LATMOS::Accounts::Bases::Attributes - Object to handle attribute schema |
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17 | |
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18 | =head1 FUNCTIONS |
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19 | |
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20 | =head2 new($attributes, $base_or_object, $maybe_otype) |
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21 | |
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22 | Instanciate a new Attributes object. |
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23 | |
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24 | =cut |
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25 | |
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26 | sub new { |
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27 | my ($class, $attributes, $base_or_object, $maybe_otype) = @_; |
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28 | |
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29 | my ($object, $base, $otype) = |
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30 | $base_or_object->isa('LATMOS::Accounts::Bases::Objects') |
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31 | ? ($base_or_object, $base_or_object->base, $base_or_object->type) |
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32 | : (undef, $base_or_object, $maybe_otype); |
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33 | |
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34 | if (ref $attributes) { |
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35 | $attributes->{_base} = $base; |
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36 | $attributes->{_object} = $object; |
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37 | $attributes->{_name} = $attributes->{name}; |
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38 | $attributes->{_otype} = $otype; |
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39 | return bless($attributes, $class); |
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40 | } else { |
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41 | my $attr_info = $base->get_attr_schema($otype, $attributes) or return; |
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42 | |
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43 | $attr_info->{_base} = $base; |
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44 | $attr_info->{_object} = $object; |
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45 | $attr_info->{_name} = $attributes; |
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46 | $attr_info->{_otype} = $otype; |
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47 | |
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48 | return bless($attr_info, $class); |
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49 | } |
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50 | } |
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51 | |
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52 | =head2 base |
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53 | |
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54 | Return base handle |
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55 | |
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56 | =cut |
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57 | |
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58 | sub base { $_[0]->{_base} } |
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59 | |
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60 | =head2 name |
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61 | |
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62 | Return attribute name |
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63 | |
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64 | =cut |
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65 | |
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66 | sub name { $_[0]->{_name} } |
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67 | |
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68 | =head2 otype |
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69 | |
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70 | Return object type for this attribute |
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71 | |
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72 | =cut |
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73 | |
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74 | |
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75 | sub otype { $_[0]->{_otype} } |
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76 | |
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77 | =head2 mandatory |
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78 | |
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79 | Return true if attribute is mandatory |
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80 | |
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81 | =cut |
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82 | |
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83 | sub mandatory { $_[0]->{mandatory} || 0 } |
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84 | |
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85 | =head2 object |
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86 | |
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87 | Return handle object if any |
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88 | |
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89 | =cut |
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90 | |
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91 | sub object { $_[0]->{_object} } |
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92 | |
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93 | =head2 reference |
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94 | |
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95 | A object type this attribute refer to |
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96 | |
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97 | =cut |
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98 | |
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99 | sub reference { |
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100 | my ($self) = @_; |
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101 | if ($self->{reference} && |
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102 | $self->base->is_supported_object($self->{reference})) { |
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103 | return $self->{reference}; |
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104 | } else { |
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105 | return; |
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106 | } |
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107 | } |
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108 | |
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109 | =head2 iname |
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110 | |
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111 | Return internal name of attributes |
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112 | |
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113 | =cut |
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114 | |
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115 | sub iname { $_[0]->{iname} || $_[0]->name } |
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116 | |
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117 | =head2 label |
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118 | |
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119 | Return the label to display |
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120 | |
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121 | =cut |
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122 | |
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123 | sub label { $_[0]->{label} || $_[0]->{_name} } |
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124 | |
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125 | =head2 has_values_list |
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126 | |
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127 | Return true if the attribute have a fixed list of accepted values |
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128 | |
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129 | =cut |
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130 | |
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131 | sub has_values_list { |
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132 | my ($self) = @_; |
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133 | if ($self->base->obj_attr_allowed_values( |
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134 | $self->otype, |
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135 | $self->name) || |
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136 | $self->{can_values} || |
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137 | $self->reference) { |
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138 | return 1; |
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139 | } else { |
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140 | return 0; |
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141 | } |
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142 | } |
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143 | |
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144 | =head2 can_values |
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145 | |
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146 | Return possible value allowed by this attribute |
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147 | |
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148 | =cut |
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149 | |
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150 | sub can_values { |
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151 | my ($self) = @_; |
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152 | if (my @values = $self->base->obj_attr_allowed_values( |
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153 | $self->otype, |
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154 | $self->name)) { |
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155 | return @values; |
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156 | } elsif ($self->{can_values}) { |
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157 | if (ref $self->{can_values} eq 'ARRAY') { |
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158 | return @{$self->{can_values}}; |
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159 | } elsif (ref $self->{can_values} eq 'CODE') { |
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160 | $self->{can_values}->($self, $self->object); |
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161 | } else { |
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162 | return; |
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163 | } |
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164 | } elsif (my $ref = $self->reference) { |
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165 | return $self->base->list_objects($ref); |
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166 | } else { return } |
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167 | } |
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168 | |
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169 | =head2 display ($value) |
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170 | |
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171 | Return the well formated value according attribute |
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172 | |
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173 | =cut |
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174 | |
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175 | sub display { |
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176 | my ($self, $value) = @_; |
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177 | if ($self->{display}) { |
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178 | return $self->{display}->($self, $value); |
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179 | } else { |
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180 | return $value; |
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181 | } |
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182 | } |
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183 | |
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184 | =head2 input ($value) |
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185 | |
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186 | Return well formated single value for insert into base |
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187 | |
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188 | =cut |
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189 | |
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190 | sub input { |
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191 | my ($self, $value) = @_; |
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192 | if ($self->{input}) { |
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193 | if (!defined($value)) { return } |
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194 | return $self->{input}->($value); |
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195 | } elsif ($self->real_form_type =~ /^(DATE|DATETIME)$/) { |
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196 | if (!$value) { |
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197 | return; |
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198 | } else { |
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199 | $value =~ s:^(\d+)/(\d+)/(\d+):$2/$1/$3:; |
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200 | my $epoch = str2time($value); |
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201 | return $value if (!defined($epoch)); |
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202 | my $dt = DateTime->from_epoch(epoch => str2time($value)); |
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203 | $dt->set_time_zone( DateTime::TimeZone->new( name => 'local' ) ); |
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204 | if ($self->real_form_type eq 'DATE') { |
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205 | return $dt->ymd('-'); |
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206 | } else { |
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207 | return $dt->ymd('-') . ' ' . $dt->hms(':'); |
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208 | } |
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209 | } |
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210 | } else { |
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211 | return $value; |
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212 | } |
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213 | } |
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214 | |
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215 | =head2 checkinputformat ($value) |
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216 | |
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217 | Check input value format, return false on error |
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218 | |
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219 | =cut |
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220 | |
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221 | sub checkinputformat { |
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222 | my ($self, $value) = @_; |
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223 | |
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224 | if ($self->{checkinputformat}) { |
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225 | if (!$self->{checkinputformat}->($value)) { |
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226 | return; |
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227 | } |
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228 | } |
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229 | |
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230 | return 1; |
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231 | } |
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232 | |
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233 | =head2 checkinput ($value) |
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234 | |
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235 | Check input value, return false on error |
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236 | |
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237 | =cut |
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238 | |
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239 | sub checkinput { |
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240 | my ($self, $values) = @_; |
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241 | |
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242 | foreach my $value (grep { $_ } (ref $values ? @{ $values } : $values)) { |
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243 | if (!$self->checkinputformat($value)) { |
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244 | $self->base->log(LA_ERR, "Wrong format for %s/%s: %s", |
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245 | $self->name, |
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246 | $self->{_otype}, |
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247 | $value |
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248 | ); |
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249 | return; |
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250 | } |
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251 | } |
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252 | |
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253 | if ($self->mandatory && |
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254 | (!(defined($values)) || $values eq '')) { |
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255 | $self->base->log(LA_ERR, |
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256 | "%s attribute cannot be empty for object %s", |
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257 | $self->name, |
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258 | $self->{_otype}, |
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259 | ); |
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260 | return; |
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261 | } |
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262 | |
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263 | if (ref $values eq 'ARRAY' && ! $self->multiple) { |
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264 | $self->base->log(LA_WARN, 'Attribute %s is not multi valuesd', $self->name); |
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265 | # TODO: really return an error |
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266 | # return; |
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267 | } |
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268 | |
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269 | if ($self->{checkinput}) { |
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270 | foreach my $val (ref $values ? @{ $values } : $values) { |
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271 | if (!$self->{checkinput}->($val)) { |
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272 | return; |
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273 | } |
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274 | } |
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275 | return 1; |
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276 | } |
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277 | |
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278 | if ($self->has_values_list && $values) { |
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279 | my @possible = $self->can_values; |
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280 | foreach my $value (ref $values ? @{ $values } : $values) { |
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281 | if (! grep { $value eq $_ } @possible) { |
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282 | $self->base->log(LA_ERR, |
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283 | "%s attribute cannot have `%s' as value for object %s/%s", |
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284 | $self->name, |
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285 | $value, |
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286 | $self->object->type, |
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287 | $self->object->id, |
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288 | ) if ($self->object); |
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289 | $self->base->log(LA_DEBUG, "Possible value for %s: %s", |
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290 | $self->name, |
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291 | join(', ', @possible) |
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292 | ); |
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293 | return; |
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294 | } |
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295 | } |
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296 | } |
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297 | |
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298 | |
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299 | return 1; |
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300 | } |
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301 | |
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302 | =head2 readable |
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303 | |
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304 | Return true if attribute can be read |
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305 | |
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306 | =cut |
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307 | |
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308 | sub readable { |
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309 | my ($self) = @_; |
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310 | if (ref $self->{readable} eq 'CODE') { |
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311 | return $self->{readable}->($self->object) || 0; |
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312 | } else { |
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313 | return defined($_[0]->{readable}) ? $_[0]->{readable} : 1; |
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314 | } |
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315 | } |
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316 | |
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317 | =head2 ro |
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318 | |
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319 | Return true if the attribute cannot be write by design |
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320 | |
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321 | =cut |
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322 | |
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323 | sub ro { |
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324 | my ($self) = @_; |
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325 | if (ref $self->{ro} eq 'CODE') { |
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326 | return $self->{ro}->($self->object) || 0; |
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327 | } else { |
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328 | return $_[0]->{ro} || 0 |
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329 | } |
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330 | } |
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331 | |
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332 | =head2 readonly |
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333 | |
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334 | Return true if attribute cannot be read according acls or attributes state |
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335 | |
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336 | =cut |
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337 | |
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338 | sub readonly { |
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339 | my ($self) = @_; |
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340 | return 1 if ($self->ro); |
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341 | |
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342 | return ! $self->check_acl('w'); |
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343 | } |
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344 | |
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345 | =head2 check_acl ($mode) |
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346 | |
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347 | Return true is access to C<$mode> is granted |
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348 | |
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349 | =cut |
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350 | |
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351 | sub check_acl { |
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352 | my ($self, $mode) = @_; |
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353 | |
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354 | return 1 if ($self->{_noacl}); |
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355 | |
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356 | return $self->base->check_acl($self->object |
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357 | ? ($self->object, $self->name, $mode) |
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358 | : ($self->otype, '@CREATE', $mode)); |
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359 | } |
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360 | |
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361 | =head2 real_form_type |
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362 | |
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363 | Return the way the fields must be show in GUI. |
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364 | For each type option maybe given by form_option |
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365 | |
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366 | =head3 LABEL |
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367 | |
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368 | =over 4 |
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369 | |
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370 | =item length |
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371 | |
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372 | The length to use to show the attribute |
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373 | |
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374 | =back |
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375 | |
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376 | =head3 TEXT |
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377 | |
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378 | =head3 TEXTAREA |
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379 | |
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380 | =head3 DATE |
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381 | |
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382 | =head3 LIST |
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383 | |
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384 | =head3 CHECKBOX |
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385 | |
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386 | =over 4 |
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387 | |
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388 | =item rawvalue |
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389 | |
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390 | The real value of the attribute must be show |
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391 | |
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392 | =back |
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393 | |
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394 | =cut |
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395 | |
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396 | sub real_form_type { $_[0]->{formtype} || 'TEXT' } |
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397 | |
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398 | =head2 form_type |
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399 | |
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400 | Return the way the attribute must be displayed |
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401 | |
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402 | =cut |
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403 | |
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404 | sub form_type { |
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405 | $_[0]->readonly ? 'LABEL' : |
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406 | $_[0]->{formtype} ? $_[0]->{formtype} : |
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407 | $_[0]->has_values_list ? 'LIST' : |
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408 | $_[0]->real_form_type |
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409 | } |
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410 | |
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411 | =head2 form_option ($option) |
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412 | |
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413 | Return the form option C<$option> |
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414 | |
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415 | =cut |
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416 | |
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417 | sub form_option { |
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418 | my ($self, $option) = @_; |
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419 | return $self->{formopts}{$option} |
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420 | } |
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421 | |
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422 | =head2 uniq |
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423 | |
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424 | Return true is attribute value must be uniq |
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425 | |
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426 | =cut |
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427 | |
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428 | sub uniq { $_[0]->{uniq} || 0 } |
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429 | |
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430 | =head2 multiple |
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431 | |
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432 | Return true is attribute value can be set several times |
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433 | |
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434 | =cut |
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435 | |
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436 | sub multiple { $_[0]->{multiple} || 0 } |
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437 | |
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438 | =head2 hidden |
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439 | |
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440 | Return true if attributes must not appear in list by can be query. |
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441 | |
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442 | =cut |
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443 | |
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444 | sub hidden { $_[0]->{hide} || 0 } |
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445 | |
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446 | =head2 delayed |
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447 | |
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448 | Return true if attribute must be set after object creation during |
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449 | synchronisation |
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450 | |
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451 | =cut |
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452 | |
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453 | sub delayed { $_[0]->{delayed} || 0 } |
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454 | |
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455 | =head2 get |
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456 | |
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457 | Return the value for this attribute |
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458 | |
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459 | =cut |
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460 | |
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461 | sub get { |
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462 | my ($self) = @_; |
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463 | |
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464 | if (defined($self->object)) { |
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465 | my $res = (ref($self->{get}) eq 'CODE') |
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466 | ? $self->{get}->($self) |
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467 | : $self->object->get_field($self->iname); |
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468 | |
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469 | # always return undef if empty |
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470 | # and an array if attribute is multivalued |
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471 | if (!defined($res)) { |
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472 | return undef; |
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473 | } elsif (ref $res) { |
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474 | return $res; |
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475 | } elsif ($self->multiple) { |
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476 | return (ref $res ? $res : [$res]) |
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477 | } else { |
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478 | return $res; |
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479 | } |
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480 | } else { |
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481 | return; |
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482 | } |
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483 | } |
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484 | |
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485 | =head2 defaultValue |
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486 | |
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487 | Return the default static value for this attribute. |
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488 | |
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489 | =cut |
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490 | |
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491 | sub defaultValue { |
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492 | my ($self) = @_; |
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493 | |
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494 | return $self->base->defaultAttributeValue($self->otype, $self->name) |
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495 | } |
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496 | |
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497 | =head2 getValues |
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498 | |
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499 | Return value for this attribute, results are always return as an array |
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500 | |
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501 | =cut |
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502 | |
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503 | sub getValues { |
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504 | my ($self) = @_; |
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505 | |
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506 | my $res = $self->get(); |
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507 | |
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508 | return ref $res ? grep { $_ } @{ $res } : $res; |
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509 | } |
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510 | |
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511 | |
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512 | =head2 set ($values) |
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513 | |
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514 | Set attribute value to attached object |
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515 | |
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516 | =cut |
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517 | |
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518 | sub set { |
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519 | my ($self, $values) = @_; |
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520 | |
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521 | my $inputv = ref $values |
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522 | ? [ map { $self->input($_) } @$values ] |
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523 | : $values ? $self->input($values) : undef; |
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524 | |
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525 | my $res = ref $self->{set} eq 'CODE' |
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526 | ? $self->{set}->($self, $inputv) |
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527 | : $self->object->set_fields($self->iname, $inputv); |
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528 | |
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529 | # If the attribute has a post code, call it |
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530 | if ($res && $self->{post}) { |
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531 | $self->{post}->($self, $inputv); |
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532 | } |
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533 | |
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534 | $res |
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535 | } |
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536 | |
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537 | =head2 default_value |
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538 | |
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539 | Return default value for this attribute |
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540 | |
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541 | =cut |
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542 | |
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543 | sub default_value { |
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544 | my ($self) = @_; |
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545 | $self->defaultValue; |
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546 | } |
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547 | |
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548 | =head2 monitored |
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549 | |
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550 | Return true if the attribute is monitored |
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551 | |
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552 | =cut |
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553 | |
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554 | sub monitored { |
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555 | my ($self) = @_; |
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556 | |
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557 | if ($self->iname ne $self->name) { |
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558 | my $attr = $self->base->attribute($self->otype, $self->iname) or return; |
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559 | return $attr->monitored; |
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560 | } else { |
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561 | return $self->{monitored} || 0; |
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562 | } |
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563 | } |
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564 | |
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565 | 1; |
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566 | |
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567 | __END__ |
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568 | |
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569 | =head1 SEE ALSO |
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570 | |
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571 | L<LATMOS::Accounts::Bases> |
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572 | |
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573 | =head1 AUTHOR |
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574 | |
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575 | Olivier Thauvin, E<lt>olivier.thauvin@latmos.ipsl.frE<gt> |
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576 | |
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577 | =head1 COPYRIGHT AND LICENSE |
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578 | |
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579 | Copyright (C) 2012 CNRS SA/CETP/LATMOS |
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580 | |
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581 | This library is free software; you can redistribute it and/or modify |
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582 | it under the same terms as Perl itself, either Perl version 5.10.0 or, |
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583 | at your option, any later version of Perl 5 you may have available. |
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584 | |
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585 | =cut |
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