Mercurial > pub > Impl
comparison lib/IMPL/SQL/Schema/Traits.pm @ 407:c6e90e02dd17 ref20150831
renamed Lib->lib
| author | cin |
|---|---|
| date | Fri, 04 Sep 2015 19:40:23 +0300 |
| parents | |
| children |
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| 406:f23fcb19d3c1 | 407:c6e90e02dd17 |
|---|---|
| 1 package IMPL::SQL::Schema::Traits; | |
| 2 use strict; | |
| 3 use IMPL::_core::version; | |
| 4 use IMPL::Exception(); | |
| 5 | |
| 6 use parent qw(IMPL::Object); | |
| 7 | |
| 8 # required for use with typeof operator | |
| 9 use IMPL::SQL::Schema::Constraint::PrimaryKey(); | |
| 10 use IMPL::SQL::Schema::Constraint::Index(); | |
| 11 use IMPL::SQL::Schema::Constraint::Unique(); | |
| 12 use IMPL::SQL::Schema::Constraint::ForeignKey(); | |
| 13 | |
| 14 ################################################### | |
| 15 | |
| 16 package IMPL::SQL::Schema::Traits::Table; | |
| 17 use base qw(IMPL::Object::Fields); | |
| 18 | |
| 19 use fields qw( | |
| 20 name | |
| 21 columns | |
| 22 constraints | |
| 23 options | |
| 24 ); | |
| 25 | |
| 26 sub CTOR { | |
| 27 my ($this,$table,$columns,$constraints,$options) = @_; | |
| 28 | |
| 29 $this->{name} = $table or die new IMPL::InvalidArgumentException(table => "A table name is required"); | |
| 30 $this->{columns} = $columns if defined $columns; | |
| 31 $this->{constraints} = $constraints if defined $constraints; | |
| 32 $this->{options} = $options if defined $options; | |
| 33 } | |
| 34 | |
| 35 ################################################### | |
| 36 | |
| 37 package IMPL::SQL::Schema::Traits::Column; | |
| 38 use base qw(IMPL::Object::Fields); | |
| 39 | |
| 40 use fields qw( | |
| 41 name | |
| 42 type | |
| 43 isNullable | |
| 44 defaultValue | |
| 45 tag | |
| 46 ); | |
| 47 | |
| 48 sub CTOR { | |
| 49 my ($this, $name, $type, %args) = @_; | |
| 50 | |
| 51 $this->{name} = $name or die new IMPL::InvalidArgumentException("name"); | |
| 52 $this->{type} = $type or die new IMPL::InvalidArgumentException("type"); | |
| 53 $this->{isNullable} = $args{isNullable} if exists $args{isNullable}; | |
| 54 $this->{defaultValue} = $args{defaultValue} if exists $args{defaultValue}; | |
| 55 $this->{tag} = $args{tag} if exists $args{tag}; | |
| 56 } | |
| 57 | |
| 58 ################################################## | |
| 59 | |
| 60 package IMPL::SQL::Schema::Traits::Constraint; | |
| 61 use base qw(IMPL::Object::Fields); | |
| 62 | |
| 63 use fields qw( | |
| 64 name | |
| 65 columns | |
| 66 ); | |
| 67 | |
| 68 sub CTOR { | |
| 69 my ($this, $name, $columns) = @_; | |
| 70 | |
| 71 $this->{name} = $name; | |
| 72 $this->{columns} = $columns; # list of columnNames | |
| 73 } | |
| 74 | |
| 75 sub constraintClass { | |
| 76 die new IMPL::NotImplementedException(); | |
| 77 } | |
| 78 | |
| 79 ################################################## | |
| 80 | |
| 81 package IMPL::SQL::Schema::Traits::PrimaryKey; | |
| 82 | |
| 83 use base qw(IMPL::SQL::Schema::Traits::Constraint); | |
| 84 | |
| 85 __PACKAGE__->PassThroughArgs; | |
| 86 | |
| 87 use constant { constraintClass => typeof IMPL::SQL::Schema::Constraint::PrimaryKey }; | |
| 88 | |
| 89 ################################################## | |
| 90 | |
| 91 package IMPL::SQL::Schema::Traits::Index; | |
| 92 | |
| 93 use base qw(IMPL::SQL::Schema::Traits::Constraint); | |
| 94 | |
| 95 __PACKAGE__->PassThroughArgs; | |
| 96 | |
| 97 use constant { constraintClass => typeof IMPL::SQL::Schema::Constraint::Index }; | |
| 98 | |
| 99 ################################################## | |
| 100 | |
| 101 package IMPL::SQL::Schema::Traits::Unique; | |
| 102 | |
| 103 use base qw(IMPL::SQL::Schema::Traits::Constraint); | |
| 104 | |
| 105 __PACKAGE__->PassThroughArgs; | |
| 106 | |
| 107 use constant { constraintClass => typeof IMPL::SQL::Schema::Constraint::Unique }; | |
| 108 | |
| 109 ################################################## | |
| 110 | |
| 111 package IMPL::SQL::Schema::Traits::ForeignKey; | |
| 112 | |
| 113 use base qw(IMPL::SQL::Schema::Traits::Constraint); | |
| 114 use fields qw( | |
| 115 foreignTable | |
| 116 foreignColumns | |
| 117 onUpdate | |
| 118 onDelete | |
| 119 ); | |
| 120 | |
| 121 use constant { constraintClass => typeof IMPL::SQL::Schema::Constraint::ForeignKey }; | |
| 122 | |
| 123 our %CTOR = ( | |
| 124 'IMPL::SQL::Schema::Traits::Constraint' => sub { @_[0..1] } | |
| 125 ); | |
| 126 | |
| 127 sub CTOR { | |
| 128 my ($this,$foreignTable,$foreignColumns,%args) = @_[0,3..$#_]; | |
| 129 | |
| 130 $this->{foreignTable} = $foreignTable; | |
| 131 $this->{foreignColumns} = $foreignColumns; | |
| 132 | |
| 133 $this->{onDelete} = $args{onDelete} if $args{onDelete}; | |
| 134 $this->{onUpdate} = $args{onUpdate} if $args{onUpdate}; | |
| 135 } | |
| 136 | |
| 137 | |
| 138 ################################################## | |
| 139 | |
| 140 package IMPL::SQL::Schema::Traits::CreateTable; | |
| 141 | |
| 142 use IMPL::Const qw(:prop); | |
| 143 use IMPL::declare { | |
| 144 require => { | |
| 145 Table => '-IMPL::SQL::Schema::Traits::Table', | |
| 146 ArgException => '-IMPL::InvalidArgumentException', | |
| 147 OpException => '-IMPL::InvalidOperationException' | |
| 148 }, | |
| 149 base => [ | |
| 150 '-IMPL::SQL::Schema::Traits' => undef | |
| 151 ], | |
| 152 props => [ | |
| 153 table => PROP_RO, | |
| 154 ] | |
| 155 }; | |
| 156 use IMPL::lang; | |
| 157 | |
| 158 sub CTOR { | |
| 159 my ($this,$table) = @_; | |
| 160 | |
| 161 die ArgException->new("table", "An object of IMPL::SQL::Schema::Traits::Table type is required") | |
| 162 unless is($table, Table); | |
| 163 | |
| 164 $this->table($table); | |
| 165 } | |
| 166 | |
| 167 sub CanApply { | |
| 168 my ($this,$schema) = @_; | |
| 169 | |
| 170 return( $schema->GetTable( $this->table->{name} ) ? 0 : 1 ); | |
| 171 } | |
| 172 | |
| 173 sub Apply { | |
| 174 my ($this,$schema) = @_; | |
| 175 | |
| 176 my $args = {%{$this->table}}; | |
| 177 | |
| 178 my $constraints = delete $args->{constraints} || []; | |
| 179 | |
| 180 my $table = $schema->AddTable($args); | |
| 181 | |
| 182 $table->AddConstraint($_->constraintClass, $_) foreach @{$constraints}; | |
| 183 } | |
| 184 | |
| 185 ################################################## | |
| 186 | |
| 187 package IMPL::SQL::Schema::Traits::DropTable; | |
| 188 use IMPL::Const qw(:prop); | |
| 189 use IMPL::declare { | |
| 190 require => { | |
| 191 ArgException => '-IMPL::InvalidArgumentException' | |
| 192 }, | |
| 193 base => [ | |
| 194 '-IMPL::SQL::Schema::Traits' => undef | |
| 195 ], | |
| 196 props => [ | |
| 197 tableName => PROP_RO, | |
| 198 ] | |
| 199 }; | |
| 200 | |
| 201 sub CTOR { | |
| 202 my ($this,$tableName) = @_; | |
| 203 | |
| 204 $this->tableName($tableName) or die ArgException->new("tableName is required"); | |
| 205 } | |
| 206 | |
| 207 sub CanApply { | |
| 208 my ($this,$schema) = @_; | |
| 209 | |
| 210 return $schema->GetTable( $this->tableName ) ? 1 : 0; | |
| 211 } | |
| 212 | |
| 213 sub Apply { | |
| 214 my ($this,$schema) = @_; | |
| 215 | |
| 216 $schema->RemoveTable($this->tableName); | |
| 217 } | |
| 218 | |
| 219 ################################################## | |
| 220 | |
| 221 package IMPL::SQL::Schema::Traits::RenameTable; | |
| 222 use IMPL::Const qw(:prop); | |
| 223 use IMPL::declare { | |
| 224 require => { | |
| 225 ArgException => '-IMPL::InvalidArgumentException' | |
| 226 }, | |
| 227 base => [ | |
| 228 '-IMPL::SQL::Schema::Traits' => undef | |
| 229 ], | |
| 230 props => [ | |
| 231 tableName => PROP_RO, | |
| 232 tableNewName => PROP_RO, | |
| 233 ] | |
| 234 }; | |
| 235 | |
| 236 sub CTOR { | |
| 237 my ($this, $oldName, $newName) = @_; | |
| 238 | |
| 239 $this->tableName($oldName) or die ArgException->new("A table name is required"); | |
| 240 $this->tableNewName($newName) or die ArgException->new("A new table name is required"); | |
| 241 } | |
| 242 | |
| 243 sub CanApply { | |
| 244 my ($this, $schema) = @_; | |
| 245 | |
| 246 return ($schema->GetTable($this->tableName) and not $schema->GetTable($this->tableNewName) ? 1 : 0 ); | |
| 247 } | |
| 248 | |
| 249 sub Apply { | |
| 250 my ($this,$schema) = @_; | |
| 251 | |
| 252 $schema->RenameTable($this->tableName, $this->tableNewName); | |
| 253 | |
| 254 } | |
| 255 | |
| 256 ################################################# | |
| 257 | |
| 258 package IMPL::SQL::Schema::Traits::AlterTableAddColumn; | |
| 259 | |
| 260 use IMPL::Const qw(:prop); | |
| 261 use IMPL::declare { | |
| 262 require => { | |
| 263 Column => '-IMPL::SQL::Schema::Traits::Column', | |
| 264 ArgException => '-IMPL::InvalidArgumentException', | |
| 265 OpException => '-IMPL::InvalidOperationException' | |
| 266 }, | |
| 267 base => [ | |
| 268 '-IMPL::SQL::Schema::Traits' => undef | |
| 269 ], | |
| 270 props => [ | |
| 271 tableName => PROP_RO, | |
| 272 column => PROP_RO, | |
| 273 position => PROP_RO | |
| 274 ] | |
| 275 }; | |
| 276 use IMPL::lang; | |
| 277 | |
| 278 | |
| 279 sub CTOR { | |
| 280 my ($this,$tableName,$column) = @_; | |
| 281 | |
| 282 $this->tableName($tableName) or die ArgException->new("A table name is required"); | |
| 283 | |
| 284 die ArgException->new("A column should be a IMPL::SQL::Schema::Traits::Column object") | |
| 285 unless is($column, Column); | |
| 286 | |
| 287 $this->column($column); | |
| 288 } | |
| 289 | |
| 290 sub CanApply { | |
| 291 my ($this,$schema) = @_; | |
| 292 | |
| 293 my $table = $schema->GetTable($this->tableName) | |
| 294 or return 0; | |
| 295 | |
| 296 return $table->GetColumn( $this->column->{name} ) ? 0 : 1; | |
| 297 } | |
| 298 | |
| 299 sub Apply { | |
| 300 my ($this,$schema) = @_; | |
| 301 | |
| 302 my $table = $schema->GetTable($this->tableName) | |
| 303 or die OpException->new("The specified table doesn't exists", $this->tableName); | |
| 304 | |
| 305 if ($this->position) { | |
| 306 $table->AddColumn($this->column); | |
| 307 } else { | |
| 308 $table->InsertColumn($this->column,$this->position); | |
| 309 } | |
| 310 } | |
| 311 | |
| 312 ################################################# | |
| 313 | |
| 314 package IMPL::SQL::Schema::Traits::AlterTableDropColumn; | |
| 315 | |
| 316 use IMPL::Const qw(:prop); | |
| 317 use IMPL::declare { | |
| 318 require => { | |
| 319 FK => '-IMPL::SQL::Schema::Constraint::ForeignKey', | |
| 320 ArgException => '-IMPL::InvalidArgumentException', | |
| 321 OpException => '-IMPL::InvalidOperationException' | |
| 322 }, | |
| 323 base => [ | |
| 324 '-IMPL::SQL::Schema::Traits' => undef | |
| 325 ], | |
| 326 props => [ | |
| 327 tableName => PROP_RO, | |
| 328 columnName => PROP_RO, | |
| 329 ] | |
| 330 }; | |
| 331 use IMPL::lang; | |
| 332 | |
| 333 | |
| 334 sub CTOR { | |
| 335 my ($this,$table,$column) = @_; | |
| 336 | |
| 337 $this->tableName($table) or die ArgException->new(tableName => "A table name should be specified"); | |
| 338 $this->columnName($column) or die ArgException->new(columnName => "A column name should be specified"); | |
| 339 } | |
| 340 | |
| 341 sub CanApply { | |
| 342 my ($this,$schema) = @_; | |
| 343 | |
| 344 my $table = $schema->GetTable($this->tableName) | |
| 345 or return 0; | |
| 346 | |
| 347 $table->GetColumn($this->columnName) or | |
| 348 return 0; | |
| 349 | |
| 350 # столбец | |
| 351 return $table->GetColumnConstraints($this->columnName) | |
| 352 ? 0 | |
| 353 : 1 | |
| 354 ; | |
| 355 } | |
| 356 | |
| 357 sub Apply { | |
| 358 my ($this,$schema) = @_; | |
| 359 | |
| 360 my $table = $schema->GetTable($this->tableName) | |
| 361 or die OpException->new("The specified table doesn't exists", $this->tableName); | |
| 362 | |
| 363 $table->RemoveColumn($this->columnName); | |
| 364 } | |
| 365 | |
| 366 ################################################# | |
| 367 | |
| 368 package IMPL::SQL::Schema::Traits::AlterTableChangeColumn; | |
| 369 | |
| 370 use IMPL::Const qw(:prop); | |
| 371 use IMPL::declare { | |
| 372 require => { | |
| 373 Constraint => '-IMPL::SQL::Schema::Traits::Constraint', | |
| 374 ArgException => '-IMPL::InvalidArgumentException', | |
| 375 OpException => '-IMPL::InvalidOperationException' | |
| 376 }, | |
| 377 base => [ | |
| 378 '-IMPL::SQL::Schema::Traits' => undef | |
| 379 ], | |
| 380 props => [ | |
| 381 tableName => PROP_RO, | |
| 382 columnName => PROP_RO, | |
| 383 columnType => PROP_RW, | |
| 384 defaultValue => PROP_RW, | |
| 385 isNullable => PROP_RW, | |
| 386 position => PROP_RW, | |
| 387 options => PROP_RW # hash diff format, (keys have a prefix '+' - add or update value, '-' remove value) | |
| 388 ] | |
| 389 }; | |
| 390 use IMPL::lang; | |
| 391 | |
| 392 sub CTOR { | |
| 393 my ($this, $table,$column,%args) = @_; | |
| 394 | |
| 395 $this->tableName($table) or die ArgException->new(tableName => "A table name is required"); | |
| 396 $this->columnName($column) or die ArgException->new(columnName => "A column name is required"); | |
| 397 | |
| 398 $this->$_($args{$_}) | |
| 399 for (grep exists $args{$_}, qw(columnType defaultValue isNullable options)); | |
| 400 } | |
| 401 | |
| 402 sub CanApply { | |
| 403 my ($this,$schema) = @_; | |
| 404 | |
| 405 my $table = $schema->GetTable($this->tableName) | |
| 406 or return 0; | |
| 407 | |
| 408 return $table->GetColumn($this->columnName) ? 1 : 0; | |
| 409 } | |
| 410 | |
| 411 sub Apply { | |
| 412 my ($this,$schema) = @_; | |
| 413 | |
| 414 my $table = $schema->GetTable($this->tableName) | |
| 415 or die OpException->new("The specified table doesn't exists", $this->tableName); | |
| 416 | |
| 417 my $column = $table->GetColumn($this->columnName) | |
| 418 or die OpException->new("The specified column doesn't exists", $this->tableName, $this->columnName); | |
| 419 | |
| 420 $column->SetType($this->columnType) if defined $this->columnType; | |
| 421 $column->SetNullable($this->isNullable) if defined $this->isNullable; | |
| 422 $column->SetDefaultValue($this->defaultValue) if defined $this->defaultValue; | |
| 423 $column->SetOptions($this->options) if defined $this->options; | |
| 424 | |
| 425 $table->SetColumnPosition($this->position) | |
| 426 if ($this->position); | |
| 427 | |
| 428 } | |
| 429 | |
| 430 ################################################# | |
| 431 | |
| 432 package IMPL::SQL::Schema::Traits::AlterTableAddConstraint; | |
| 433 | |
| 434 use IMPL::Const qw(:prop); | |
| 435 use IMPL::declare { | |
| 436 require => { | |
| 437 Constraint => '-IMPL::SQL::Schema::Traits::Constraint', | |
| 438 ArgException => '-IMPL::InvalidArgumentException', | |
| 439 FK => '-IMPL::SQL::Schema::Traits::ForeignKey' | |
| 440 }, | |
| 441 base => [ | |
| 442 '-IMPL::SQL::Schema::Traits' => undef | |
| 443 ], | |
| 444 props => [ | |
| 445 tableName => PROP_RO, | |
| 446 constraint => PROP_RO | |
| 447 ] | |
| 448 }; | |
| 449 use IMPL::lang; | |
| 450 | |
| 451 sub CTOR { | |
| 452 my ($this,$table,$constraint) = @_; | |
| 453 | |
| 454 $this->tableName($table) or die ArgException->new( tableName => "A table name is required"); | |
| 455 | |
| 456 die ArgException->new(constaraint => "A valid " . Constraint . " is required") | |
| 457 unless is($constraint, Constraint); | |
| 458 | |
| 459 $this->constraint($constraint); | |
| 460 } | |
| 461 | |
| 462 sub CanApply { | |
| 463 my ($this, $schema) = @_; | |
| 464 | |
| 465 my $table = $schema->GetTable($this->tableName) | |
| 466 or return 0; | |
| 467 | |
| 468 my $constraint = $this->constraint; | |
| 469 | |
| 470 my @columns = map $table->GetColumn($_), @{$constraint->{columns} || []}; | |
| 471 | |
| 472 # проверяем, что в таблице есть все столбцы для создания ограничения | |
| 473 return 0 if grep not($_), @columns; | |
| 474 | |
| 475 if (is($constraint,FK)) { | |
| 476 my $foreignTable = $schema->GetTable($constraint->{foreignTable}) | |
| 477 or return 0; | |
| 478 | |
| 479 my @foreignColumns = map $foreignTable->GetColumn($_), @{$constraint->{foreignColumns}||[]}; | |
| 480 | |
| 481 # внешняя таблица имеет нужные столбцы | |
| 482 return 0 | |
| 483 if grep not($_), @foreignColumns; | |
| 484 | |
| 485 # типы столбцов во внешней таблице совпадают с типами столбцов ограничения | |
| 486 return 0 | |
| 487 if grep not($columns[$_]->type->SameValue($foreignColumns[$_]->type)), (0 .. $#columns); | |
| 488 } | |
| 489 | |
| 490 return 1; | |
| 491 } | |
| 492 | |
| 493 sub Apply { | |
| 494 my ($this,$schema) = @_; | |
| 495 | |
| 496 my $table = $schema->GetTable($this->tableName) | |
| 497 or die IMPL::InvalidOperationException->new("The specified table doesn't exists", $this->tableName); | |
| 498 | |
| 499 my $constraint = $this->constraint; | |
| 500 | |
| 501 if (is($constraint,FK)) { | |
| 502 my $args = { %$constraint }; | |
| 503 $args->{referencedTable} = $schema->GetTable(delete $args->{foreignTable}); | |
| 504 $args->{referencedColumns} = delete $args->{foreignColumns}; | |
| 505 $table->AddConstraint($constraint->constraintClass, $args); | |
| 506 } else { | |
| 507 $table->AddConstraint($constraint->constraintClass, $constraint); | |
| 508 } | |
| 509 | |
| 510 } | |
| 511 | |
| 512 ################################################# | |
| 513 | |
| 514 package IMPL::SQL::Schema::Traits::AlterTableDropConstraint; | |
| 515 use IMPL::Const qw(:prop); | |
| 516 use IMPL::declare { | |
| 517 require => { | |
| 518 PK => '-IMPL::SQL::Schema::Constraint::PrimaryKey' | |
| 519 }, | |
| 520 base => [ | |
| 521 '-IMPL::SQL::Schema::Traits' => undef | |
| 522 ], | |
| 523 props => [ | |
| 524 tableName => PROP_RO, | |
| 525 constraintName => PROP_RO | |
| 526 ] | |
| 527 }; | |
| 528 use IMPL::lang qw(is); | |
| 529 | |
| 530 sub CTOR { | |
| 531 my ($this,$table,$constraint) = @_; | |
| 532 | |
| 533 die new IMPL::InvalidArgumentException( tableName => "A table name is required" ) unless $table; | |
| 534 die new IMPL::InvalidArgumentException( constraintName => "A constraint name is required" ) unless $constraint; | |
| 535 | |
| 536 $this->tableName($table); | |
| 537 $this->constraintName($constraint); | |
| 538 } | |
| 539 | |
| 540 sub CanApply { | |
| 541 my ($this,$schema) = @_; | |
| 542 | |
| 543 my $table = $schema->GetTable($this->tableName) | |
| 544 or return 0; | |
| 545 | |
| 546 my $constraint = $table->GetConstraint($this->constraintName) | |
| 547 or return 0; | |
| 548 | |
| 549 # есть ли внешние ключи на данную таблицу | |
| 550 return ( | |
| 551 is($constraint,PK) | |
| 552 && values( %{$constraint->connectedFK || {}} ) | |
| 553 ? 0 | |
| 554 : 1 | |
| 555 ); | |
| 556 } | |
| 557 | |
| 558 sub Apply { | |
| 559 my ($this,$schema) = @_; | |
| 560 | |
| 561 my $table = $schema->GetTable($this->tableName) | |
| 562 or die IMPL::InvalidOperationException->new("The specified table doesn't exists", $this->tableName); | |
| 563 | |
| 564 $table->RemoveConstraint($this->constraintName); | |
| 565 } | |
| 566 | |
| 567 | |
| 568 1; | |
| 569 | |
| 570 __END__ | |
| 571 | |
| 572 =pod | |
| 573 | |
| 574 =head1 NAME | |
| 575 | |
| 576 C<IMPL::SQL::Traits> - Операции над объектками SQL схемы. | |
| 577 | |
| 578 =head1 DESCRIPTION | |
| 579 | |
| 580 Изменения схемы могу быть представлены в виде последовательности примитивных операций. | |
| 581 Правила выполнения последовательности примитывных действий могут варьироваться | |
| 582 в зависимости от процессора, который их выполняет. Например C<IMPL::SQL::Schema::Traits::Processor>. | |
| 583 | |
| 584 Данные, которые содержаться в примитивных операциях не могут существовать независимо от схемы. | |
| 585 | |
| 586 =head1 OPERATIONS | |
| 587 | |
| 588 =head2 General | |
| 589 | |
| 590 Методы обще для всех примитивных операций. | |
| 591 | |
| 592 =head3 C<CanApply($schema)> | |
| 593 | |
| 594 Определяет возможность применения операции к указанной схеме. | |
| 595 | |
| 596 Возвращаемое значение: | |
| 597 | |
| 598 =over | |
| 599 | |
| 600 =item C<true> | |
| 601 | |
| 602 Операция приминима к схеме. | |
| 603 | |
| 604 =item C<false> | |
| 605 | |
| 606 Операция не может быть применена к схеме. | |
| 607 | |
| 608 =back | |
| 609 | |
| 610 =head3 C<Apply($schema)> | |
| 611 | |
| 612 Применяет операцию к указанной схеме. | |
| 613 | |
| 614 =head2 Primitive operations | |
| 615 | |
| 616 =head3 C<IMPL::SQL::Schema::Traits::CreateTable> | |
| 617 | |
| 618 Создает таблицу | |
| 619 | |
| 620 =head4 C<CTOR($table)> | |
| 621 | |
| 622 =head4 C<[get]table> | |
| 623 | |
| 624 C<IMPL::SQL::Schema::Traits::Table> - описание создаваемой таблицы | |
| 625 | |
| 626 =head3 C<IMPL::SQL::Schema::Traits::DropTable> | |
| 627 | |
| 628 Удалает таблицу по имени | |
| 629 | |
| 630 =head4 C<CTOR($tableName)> | |
| 631 | |
| 632 =head4 C<[get]tableName> | |
| 633 | |
| 634 Имя удаляемой таблицы | |
| 635 | |
| 636 =head3 C<IMPL::SQL::Schema::Traits::RenameTable> | |
| 637 | |
| 638 =head4 C<CTOR($tableName,$tableNewName)> | |
| 639 | |
| 640 =head4 C<[get]tableName> | |
| 641 | |
| 642 Имя таблицы, которую требуется переименовать | |
| 643 | |
| 644 =head4 C<[get]tableNewName> | |
| 645 | |
| 646 Новое имя таблицы | |
| 647 | |
| 648 =head3 C<IMPL::SQL::Schema::Traits::AlterTableAddColumn> | |
| 649 | |
| 650 Добавляет столбец в таблицу | |
| 651 | |
| 652 =head4 C<CTOR($tableName,$column,$position)> | |
| 653 | |
| 654 =head4 C<[get]tableName> | |
| 655 | |
| 656 Имя таблицы в которую нужно добавить столбец | |
| 657 | |
| 658 =head4 C<[get]column> | |
| 659 | |
| 660 C<IMPL::SQL::Schema::Traits::Column> - описание столбца который нужно добавить | |
| 661 | |
| 662 =head4 C<[get]position> | |
| 663 | |
| 664 Позиция на которую нужно вставить столбец | |
| 665 | |
| 666 =head3 C<IMPL::SQL::Schema::Traits::AlterTableDropColumn> | |
| 667 | |
| 668 Удаляет столбец из таблицы | |
| 669 | |
| 670 =head4 C<CTOR($tableName,$columnName)> | |
| 671 | |
| 672 =head4 C<[get]tableName> | |
| 673 | |
| 674 Имя таблицы в которой нужно удалить столбец | |
| 675 | |
| 676 =head4 C<[get]columnName> | |
| 677 | |
| 678 Имя столбца для удаления | |
| 679 | |
| 680 =head3 C<IMPL::SQL::Schema::Traits::AlterTableChangeColumn> | |
| 681 | |
| 682 Меняет описание столбца | |
| 683 | |
| 684 =head4 C<CTOR($tableName,$columnName,%args)> | |
| 685 | |
| 686 C<%args> - хеш, ключами которого являются оставшиеся свойства создаваемого объекта. | |
| 687 | |
| 688 =head4 C<[get]tableName> | |
| 689 | |
| 690 Имя таблицы в которой находится столбец. | |
| 691 | |
| 692 =head4 C<[get]columnName> | |
| 693 | |
| 694 Имя столбца для изменения | |
| 695 | |
| 696 =head4 C<[get]columnType> | |
| 697 | |
| 698 Новый тип столбца. Не задан, если тип не меняется | |
| 699 | |
| 700 =head4 C<[get]defaultValue> | |
| 701 | |
| 702 Значение по умолчанию. Не задано, если не меняется | |
| 703 | |
| 704 =head4 C<[get]isNullable> | |
| 705 | |
| 706 Может ли столбец содержать C<NULL>. Не задано, если не меняется. | |
| 707 | |
| 708 =head4 C<[get]options> | |
| 709 | |
| 710 Хеш опций, не задан, если опции не меняются. Данный хеш содержит разничу между | |
| 711 старыми и новыми значениями свойства C<tag> столбца. | |
| 712 | |
| 713 | |
| 714 =head3 C<IMPL::SQL::Schema::Traits::AlterTableAddConstraint> | |
| 715 | |
| 716 Базовый класс для операций по добавлению ограничений | |
| 717 | |
| 718 =head4 C<CTOR($tableName,$constraint)> | |
| 719 | |
| 720 =head4 C<[get]tableName> | |
| 721 | |
| 722 Имя таблицы в которую добавляется ограничение. | |
| 723 | |
| 724 =head4 C<[get]constraint> | |
| 725 | |
| 726 C<IMPL::SQL::Schema::Traits::Constraint> - описние ограничения, которое нужно добавить. | |
| 727 | |
| 728 =head3 C<IMPL::SQL::Schema::Traits::AlterTableDropConstraint> | |
| 729 | |
| 730 Удаляет ограничение на таблицу | |
| 731 | |
| 732 =head4 C<CTOR($tableName,$constraintName)> | |
| 733 | |
| 734 =head4 C<[get]tableName> | |
| 735 | |
| 736 Имя таблицы в которой требуется удалить ограничение. | |
| 737 | |
| 738 =head4 C<[get]constraintName> | |
| 739 | |
| 740 Имя ограничения для удаления. | |
| 741 | |
| 742 =cut |
