-
-
Notifications
You must be signed in to change notification settings - Fork 6.2k
/
ColumnMetadata.ts
756 lines (638 loc) · 32.3 KB
/
ColumnMetadata.ts
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
import {ColumnType} from "../driver/types/ColumnTypes";
import {EntityMetadata} from "./EntityMetadata";
import {EmbeddedMetadata} from "./EmbeddedMetadata";
import {RelationMetadata} from "./RelationMetadata";
import {ObjectLiteral} from "../common/ObjectLiteral";
import {ColumnMetadataArgs} from "../metadata-args/ColumnMetadataArgs";
import {Connection} from "../connection/Connection";
import {OrmUtils} from "../util/OrmUtils";
import {ValueTransformer} from "../decorator/options/ValueTransformer";
import {MongoDriver} from "../driver/mongodb/MongoDriver";
import {FindOperator} from "../find-options/FindOperator";
import {ApplyValueTransformers} from "../util/ApplyValueTransformers";
/**
* This metadata contains all information about entity's column.
*/
export class ColumnMetadata {
// ---------------------------------------------------------------------
// Public Properties
// ---------------------------------------------------------------------
/**
* Target class where column decorator is used.
* This may not be always equal to entity metadata (for example embeds or inheritance cases).
*/
target: Function|string;
/**
* Entity metadata where this column metadata is.
*
* For example for @Column() name: string in Post, entityMetadata will be metadata of Post entity.
*/
entityMetadata: EntityMetadata;
/**
* Embedded metadata where this column metadata is.
* If this column is not in embed then this property value is undefined.
*/
embeddedMetadata?: EmbeddedMetadata;
/**
* If column is a foreign key of some relation then this relation's metadata will be there.
* If this column does not have a foreign key then this property value is undefined.
*/
relationMetadata?: RelationMetadata;
/**
* Class's property name on which this column is applied.
*/
propertyName: string;
/**
* The database type of the column.
*/
type: ColumnType;
/**
* Type's length in the database.
*/
length: string = "";
/**
* Type's display width in the database.
*/
width?: number;
/**
* Defines column character set.
*/
charset?: string;
/**
* Defines column collation.
*/
collation?: string;
/**
* Indicates if this column is a primary key.
*/
isPrimary: boolean = false;
/**
* Indicates if this column is generated (auto increment or generated other way).
*/
isGenerated: boolean = false;
/**
* Indicates if column can contain nulls or not.
*/
isNullable: boolean = false;
/**
* Indicates if column is selected by query builder or not.
*/
isSelect: boolean = true;
/**
* Indicates if column is inserted by default or not.
*/
isInsert: boolean = true;
/**
* Indicates if column allows updates or not.
*/
isUpdate: boolean = true;
/**
* Specifies generation strategy if this column will use auto increment.
*/
generationStrategy?: "uuid"|"increment"|"rowid";
/**
* Column comment.
* This feature is not supported by all databases.
*/
comment?: string;
/**
* Default database value.
*/
default?: any;
/**
* ON UPDATE trigger. Works only for MySQL.
*/
onUpdate?: string;
/**
* The precision for a decimal (exact numeric) column (applies only for decimal column),
* which is the maximum number of digits that are stored for the values.
*/
precision?: number|null;
/**
* The scale for a decimal (exact numeric) column (applies only for decimal column),
* which represents the number of digits to the right of the decimal point and must not be greater than precision.
*/
scale?: number;
/**
* Puts ZEROFILL attribute on to numeric column. Works only for MySQL.
* If you specify ZEROFILL for a numeric column, MySQL automatically adds the UNSIGNED attribute to the column
*/
zerofill: boolean = false;
/**
* Puts UNSIGNED attribute on to numeric column. Works only for MySQL.
*/
unsigned: boolean = false;
/**
* Array of possible enumerated values.
*
* `postgres` and `mysql` store enum values as strings but we want to keep support
* for numeric and heterogeneous based typescript enums, so we need (string|number)[]
*/
enum?: (string|number)[];
/**
* Exact name of enum
*/
enumName?: string;
/**
* Generated column expression. Supports only in MySQL.
*/
asExpression?: string;
/**
* Generated column type. Supports only in MySQL.
*/
generatedType?: "VIRTUAL"|"STORED";
/**
* Return type of HSTORE column.
* Returns value as string or as object.
*/
hstoreType?: "object"|"string";
/**
* Indicates if this column is an array.
*/
isArray: boolean = false;
/**
* Gets full path to this column property (including column property name).
* Full path is relevant when column is used in embeds (one or multiple nested).
* For example it will return "counters.subcounters.likes".
* If property is not in embeds then it returns just property name of the column.
*/
propertyPath: string;
/**
* Same as property path, but dots are replaced with '_'.
* Used in query builder statements.
*/
propertyAliasName: string;
/**
* Gets full path to this column database name (including column database name).
* Full path is relevant when column is used in embeds (one or multiple nested).
* For example it will return "counters.subcounters.likes".
* If property is not in embeds then it returns just database name of the column.
*/
databasePath: string;
/**
* Complete column name in the database including its embedded prefixes.
*/
databaseName: string;
/**
* Database name in the database without embedded prefixes applied.
*/
databaseNameWithoutPrefixes: string;
/**
* Database name set by entity metadata builder, not yet passed naming strategy process and without embedded prefixes.
*/
givenDatabaseName?: string;
/**
* Indicates if column is virtual. Virtual columns are not mapped to the entity.
*/
isVirtual: boolean = false;
/**
* Indicates if column is discriminator. Discriminator columns are not mapped to the entity.
*/
isDiscriminator: boolean = false;
/**
* Indicates if column is tree-level column. Tree-level columns are used in closure entities.
*/
isTreeLevel: boolean = false;
/**
* Indicates if this column contains an entity creation date.
*/
isCreateDate: boolean = false;
/**
* Indicates if this column contains an entity update date.
*/
isUpdateDate: boolean = false;
/**
* Indicates if this column contains an entity delete date.
*/
isDeleteDate: boolean = false;
/**
* Indicates if this column contains an entity version.
*/
isVersion: boolean = false;
/**
* Indicates if this column contains an object id.
*/
isObjectId: boolean = false;
/**
* If this column is foreign key then it references some other column,
* and this property will contain reference to this column.
*/
referencedColumn: ColumnMetadata|undefined;
/**
* Specifies a value transformer that is to be used to (un)marshal
* this column when reading or writing to the database.
*/
transformer?: ValueTransformer|ValueTransformer[];
/**
* Column type in the case if this column is in the closure table.
* Column can be ancestor or descendant in the closure tables.
*/
closureType?: "ancestor"|"descendant";
/**
* Indicates if this column is nested set's left column.
* Used only in tree entities with nested-set type.
*/
isNestedSetLeft: boolean = false;
/**
* Indicates if this column is nested set's right column.
* Used only in tree entities with nested-set type.
*/
isNestedSetRight: boolean = false;
/**
* Indicates if this column is materialized path's path column.
* Used only in tree entities with materialized path type.
*/
isMaterializedPath: boolean = false;
/**
* Spatial Feature Type (Geometry, Point, Polygon, etc.)
*/
spatialFeatureType?: string;
/**
* SRID (Spatial Reference ID (EPSG code))
*/
srid?: number;
// ---------------------------------------------------------------------
// Constructor
// ---------------------------------------------------------------------
constructor(options: {
connection: Connection,
entityMetadata: EntityMetadata,
embeddedMetadata?: EmbeddedMetadata,
referencedColumn?: ColumnMetadata,
args: ColumnMetadataArgs,
closureType?: "ancestor"|"descendant",
nestedSetLeft?: boolean,
nestedSetRight?: boolean,
materializedPath?: boolean,
}) {
this.entityMetadata = options.entityMetadata;
this.embeddedMetadata = options.embeddedMetadata!;
this.referencedColumn = options.referencedColumn;
if (options.args.target)
this.target = options.args.target;
if (options.args.propertyName)
this.propertyName = options.args.propertyName;
if (options.args.options.name)
this.givenDatabaseName = options.args.options.name;
if (options.args.options.type)
this.type = options.args.options.type;
if (options.args.options.length)
this.length = options.args.options.length ? options.args.options.length.toString() : "";
if (options.args.options.width)
this.width = options.args.options.width;
if (options.args.options.charset)
this.charset = options.args.options.charset;
if (options.args.options.collation)
this.collation = options.args.options.collation;
if (options.args.options.primary)
this.isPrimary = options.args.options.primary;
if (options.args.options.default === null) // to make sure default: null is the same as nullable: true
this.isNullable = true;
if (options.args.options.nullable !== undefined)
this.isNullable = options.args.options.nullable;
if (options.args.options.select !== undefined)
this.isSelect = options.args.options.select;
if (options.args.options.insert !== undefined)
this.isInsert = options.args.options.insert;
if (options.args.options.update !== undefined)
this.isUpdate = options.args.options.update;
if (options.args.options.readonly !== undefined)
this.isUpdate = !options.args.options.readonly;
if (options.args.options.comment)
this.comment = options.args.options.comment;
if (options.args.options.default !== undefined)
this.default = options.args.options.default;
if (options.args.options.onUpdate)
this.onUpdate = options.args.options.onUpdate;
if (options.args.options.scale !== null && options.args.options.scale !== undefined)
this.scale = options.args.options.scale;
if (options.args.options.zerofill) {
this.zerofill = options.args.options.zerofill;
this.unsigned = true; // if you specify ZEROFILL for a numeric column, MySQL automatically adds the UNSIGNED attribute to the column
}
if (options.args.options.unsigned)
this.unsigned = options.args.options.unsigned;
if (options.args.options.precision !== null)
this.precision = options.args.options.precision;
if (options.args.options.enum) {
if (options.args.options.enum instanceof Object && !Array.isArray(options.args.options.enum)) {
this.enum = Object.keys(options.args.options.enum)
// remove numeric keys - typescript numeric enum types generate them
// From the documentation: “declaration merging” means that the compiler merges two separate declarations
// declared with the same name into a single definition. This concept is often used to merge enum with namespace
// where in namespace we define e.g. utility methods for creating enum. This is well known in other languages
// like Java (enum methods). Here in case if enum have function, we need to remove it from metadata, otherwise
// generated SQL statements contains string representation of that function which leads into syntax error
// at database side.
.filter(key => isNaN(+key) && typeof (options.args.options.enum as ObjectLiteral)[key] !== "function")
.map(key => (options.args.options.enum as ObjectLiteral)[key]);
} else {
this.enum = options.args.options.enum;
}
}
if (options.args.options.enumName) {
this.enumName = options.args.options.enumName;
}
if (options.args.options.asExpression) {
this.asExpression = options.args.options.asExpression;
this.generatedType = options.args.options.generatedType ? options.args.options.generatedType : "VIRTUAL";
}
if (options.args.options.hstoreType)
this.hstoreType = options.args.options.hstoreType;
if (options.args.options.array)
this.isArray = options.args.options.array;
if (options.args.mode) {
this.isVirtual = options.args.mode === "virtual";
this.isTreeLevel = options.args.mode === "treeLevel";
this.isCreateDate = options.args.mode === "createDate";
this.isUpdateDate = options.args.mode === "updateDate";
this.isDeleteDate = options.args.mode === "deleteDate";
this.isVersion = options.args.mode === "version";
this.isObjectId = options.args.mode === "objectId";
}
if (options.args.options.transformer)
this.transformer = options.args.options.transformer;
if (options.args.options.spatialFeatureType)
this.spatialFeatureType = options.args.options.spatialFeatureType;
if (options.args.options.srid !== undefined)
this.srid = options.args.options.srid;
if (this.isTreeLevel)
this.type = options.connection.driver.mappedDataTypes.treeLevel;
if (this.isCreateDate) {
if (!this.type)
this.type = options.connection.driver.mappedDataTypes.createDate;
if (!this.default)
this.default = () => options.connection.driver.mappedDataTypes.createDateDefault;
// skip precision if it was explicitly set to "null" in column options. Otherwise use default precision if it exist.
if (this.precision === undefined && options.args.options.precision === undefined && options.connection.driver.mappedDataTypes.createDatePrecision)
this.precision = options.connection.driver.mappedDataTypes.createDatePrecision;
}
if (this.isUpdateDate) {
if (!this.type)
this.type = options.connection.driver.mappedDataTypes.updateDate;
if (!this.default)
this.default = () => options.connection.driver.mappedDataTypes.updateDateDefault;
if (!this.onUpdate)
this.onUpdate = options.connection.driver.mappedDataTypes.updateDateDefault;
// skip precision if it was explicitly set to "null" in column options. Otherwise use default precision if it exist.
if (this.precision === undefined && options.args.options.precision === undefined && options.connection.driver.mappedDataTypes.updateDatePrecision)
this.precision = options.connection.driver.mappedDataTypes.updateDatePrecision;
}
if (this.isDeleteDate) {
if (!this.type)
this.type = options.connection.driver.mappedDataTypes.deleteDate;
if (!this.isNullable)
this.isNullable = options.connection.driver.mappedDataTypes.deleteDateNullable;
// skip precision if it was explicitly set to "null" in column options. Otherwise use default precision if it exist.
if (this.precision === undefined && options.args.options.precision === undefined && options.connection.driver.mappedDataTypes.deleteDatePrecision)
this.precision = options.connection.driver.mappedDataTypes.deleteDatePrecision;
}
if (this.isVersion)
this.type = options.connection.driver.mappedDataTypes.version;
if (options.closureType)
this.closureType = options.closureType;
if (options.nestedSetLeft)
this.isNestedSetLeft = options.nestedSetLeft;
if (options.nestedSetRight)
this.isNestedSetRight = options.nestedSetRight;
if (options.materializedPath)
this.isMaterializedPath = options.materializedPath;
}
// ---------------------------------------------------------------------
// Public Methods
// ---------------------------------------------------------------------
/**
* Creates entity id map from the given entity ids array.
*/
createValueMap(value: any, useDatabaseName = false) {
// extract column value from embeds of entity if column is in embedded
if (this.embeddedMetadata) {
// example: post[data][information][counters].id where "data", "information" and "counters" are embeddeds
// we need to get value of "id" column from the post real entity object and return it in a
// { data: { information: { counters: { id: ... } } } } format
// first step - we extract all parent properties of the entity relative to this column, e.g. [data, information, counters]
const propertyNames = [...this.embeddedMetadata.parentPropertyNames];
// now need to access post[data][information][counters] to get column value from the counters
// and on each step we need to create complex literal object, e.g. first { data },
// then { data: { information } }, then { data: { information: { counters } } },
// then { data: { information: { counters: [this.propertyName]: entity[data][information][counters][this.propertyName] } } }
// this recursive function helps doing that
const extractEmbeddedColumnValue = (propertyNames: string[], map: ObjectLiteral): any => {
const propertyName = propertyNames.shift();
if (propertyName) {
map[propertyName] = {};
extractEmbeddedColumnValue(propertyNames, map[propertyName]);
return map;
}
// this is bugfix for #720 when increment number is bigint we need to make sure its a string
if ((this.generationStrategy === "increment" || this.generationStrategy === "rowid") && this.type === "bigint" && value !== null)
value = String(value);
map[useDatabaseName ? this.databaseName : this.propertyName] = value;
return map;
};
return extractEmbeddedColumnValue(propertyNames, {});
} else { // no embeds - no problems. Simply return column property name and its value of the entity
// this is bugfix for #720 when increment number is bigint we need to make sure its a string
if ((this.generationStrategy === "increment" || this.generationStrategy === "rowid") && this.type === "bigint" && value !== null)
value = String(value);
return { [useDatabaseName ? this.databaseName : this.propertyName]: value };
}
}
/**
* Extracts column value and returns its column name with this value in a literal object.
* If column is in embedded (or recursive embedded) it returns complex literal object.
*
* Examples what this method can return depend if this column is in embeds.
* { id: 1 } or { title: "hello" }, { counters: { code: 1 } }, { data: { information: { counters: { code: 1 } } } }
*/
getEntityValueMap(entity: ObjectLiteral, options?: { skipNulls?: boolean }): ObjectLiteral|undefined {
const returnNulls = false; // options && options.skipNulls === false ? false : true; // todo: remove if current will not bring problems, uncomment if it will.
// extract column value from embeds of entity if column is in embedded
if (this.embeddedMetadata) {
// example: post[data][information][counters].id where "data", "information" and "counters" are embeddeds
// we need to get value of "id" column from the post real entity object and return it in a
// { data: { information: { counters: { id: ... } } } } format
// first step - we extract all parent properties of the entity relative to this column, e.g. [data, information, counters]
const propertyNames = [...this.embeddedMetadata.parentPropertyNames];
const isEmbeddedArray = this.embeddedMetadata.isArray;
// now need to access post[data][information][counters] to get column value from the counters
// and on each step we need to create complex literal object, e.g. first { data },
// then { data: { information } }, then { data: { information: { counters } } },
// then { data: { information: { counters: [this.propertyName]: entity[data][information][counters][this.propertyName] } } }
// this recursive function helps doing that
const extractEmbeddedColumnValue = (propertyNames: string[], value: ObjectLiteral): ObjectLiteral => {
if (value === undefined) {
return {};
}
const propertyName = propertyNames.shift();
if (propertyName) {
const submap = extractEmbeddedColumnValue(propertyNames, value[propertyName]);
if (Object.keys(submap).length > 0) {
return { [propertyName]: submap };
}
return {};
}
if (isEmbeddedArray && Array.isArray(value)) {
return value.map(v => ({ [this.propertyName]: v[this.propertyName] }));
}
if (value[this.propertyName] !== undefined && (returnNulls === false || value[this.propertyName] !== null)) {
return { [this.propertyName]: value[this.propertyName] };
}
return {};
};
const map = extractEmbeddedColumnValue(propertyNames, entity);
return Object.keys(map).length > 0 ? map : undefined;
} else { // no embeds - no problems. Simply return column property name and its value of the entity
if (this.relationMetadata && entity[this.relationMetadata.propertyName] && entity[this.relationMetadata.propertyName] instanceof Object) {
const map = this.relationMetadata.joinColumns.reduce((map, joinColumn) => {
const value = joinColumn.referencedColumn!.getEntityValueMap(entity[this.relationMetadata!.propertyName]);
if (value === undefined) return map;
return OrmUtils.mergeDeep(map, value);
}, {});
if (Object.keys(map).length > 0)
return { [this.propertyName]: map };
return undefined;
} else {
if (entity[this.propertyName] !== undefined && (returnNulls === false || entity[this.propertyName] !== null))
return { [this.propertyName]: entity[this.propertyName] };
return undefined;
}
}
}
/**
* Extracts column value from the given entity.
* If column is in embedded (or recursive embedded) it extracts its value from there.
*/
getEntityValue(entity: ObjectLiteral, transform: boolean = false): any|undefined {
if (entity === undefined || entity === null) return undefined;
// extract column value from embeddeds of entity if column is in embedded
let value: any = undefined;
if (this.embeddedMetadata) {
// example: post[data][information][counters].id where "data", "information" and "counters" are embeddeds
// we need to get value of "id" column from the post real entity object
// first step - we extract all parent properties of the entity relative to this column, e.g. [data, information, counters]
const propertyNames = [...this.embeddedMetadata.parentPropertyNames];
const isEmbeddedArray = this.embeddedMetadata.isArray;
// next we need to access post[data][information][counters][this.propertyName] to get column value from the counters
// this recursive function takes array of generated property names and gets the post[data][information][counters] embed
const extractEmbeddedColumnValue = (propertyNames: string[], value: ObjectLiteral): any => {
const propertyName = propertyNames.shift();
return propertyName && value ? extractEmbeddedColumnValue(propertyNames, value[propertyName]) : value;
};
// once we get nested embed object we get its column, e.g. post[data][information][counters][this.propertyName]
const embeddedObject = extractEmbeddedColumnValue(propertyNames, entity);
if (embeddedObject) {
if (this.relationMetadata && this.referencedColumn) {
const relatedEntity = this.relationMetadata.getEntityValue(embeddedObject);
if (relatedEntity && relatedEntity instanceof Object && !(relatedEntity instanceof FindOperator)) {
value = this.referencedColumn.getEntityValue(relatedEntity);
} else if (embeddedObject[this.propertyName] && embeddedObject[this.propertyName] instanceof Object && !(embeddedObject[this.propertyName] instanceof FindOperator)) {
value = this.referencedColumn.getEntityValue(embeddedObject[this.propertyName]);
} else {
value = embeddedObject[this.propertyName];
}
} else if (this.referencedColumn) {
value = this.referencedColumn.getEntityValue(embeddedObject[this.propertyName]);
} else if (isEmbeddedArray && Array.isArray(embeddedObject)) {
value = embeddedObject.map(o => o[this.propertyName]);
} else {
value = embeddedObject[this.propertyName];
}
}
} else { // no embeds - no problems. Simply return column name by property name of the entity
if (this.relationMetadata && this.referencedColumn) {
const relatedEntity = this.relationMetadata.getEntityValue(entity);
if (relatedEntity && relatedEntity instanceof Object && !(relatedEntity instanceof FindOperator) && !(relatedEntity instanceof Function)) {
value = this.referencedColumn.getEntityValue(relatedEntity);
} else if (entity[this.propertyName] && entity[this.propertyName] instanceof Object && !(entity[this.propertyName] instanceof FindOperator) && !(entity[this.propertyName] instanceof Function)) {
value = this.referencedColumn.getEntityValue(entity[this.propertyName]);
} else {
value = entity[this.propertyName];
}
} else if (this.referencedColumn) {
value = this.referencedColumn.getEntityValue(entity[this.propertyName]);
} else {
value = entity[this.propertyName];
}
}
if (transform && this.transformer)
value = ApplyValueTransformers.transformTo(this.transformer, value);
return value;
}
/**
* Sets given entity's column value.
* Using of this method helps to set entity relation's value of the lazy and non-lazy relations.
*/
setEntityValue(entity: ObjectLiteral, value: any): void {
if (this.embeddedMetadata) {
// first step - we extract all parent properties of the entity relative to this column, e.g. [data, information, counters]
const extractEmbeddedColumnValue = (embeddedMetadatas: EmbeddedMetadata[], map: ObjectLiteral): any => {
// if (!object[embeddedMetadata.propertyName])
// object[embeddedMetadata.propertyName] = embeddedMetadata.create();
const embeddedMetadata = embeddedMetadatas.shift();
if (embeddedMetadata) {
if (!map[embeddedMetadata.propertyName])
map[embeddedMetadata.propertyName] = embeddedMetadata.create();
extractEmbeddedColumnValue(embeddedMetadatas, map[embeddedMetadata.propertyName]);
return map;
}
map[this.propertyName] = value;
return map;
};
return extractEmbeddedColumnValue([...this.embeddedMetadata.embeddedMetadataTree], entity);
} else {
// we write a deep object in this entity only if the column is virtual
// because if its not virtual it means the user defined a real column for this relation
// also we don't do it if column is inside a junction table
if (!this.entityMetadata.isJunction && this.isVirtual && this.referencedColumn && this.referencedColumn.propertyName !== this.propertyName) {
if (!(this.propertyName in entity)) {
entity[this.propertyName] = {};
}
entity[this.propertyName][this.referencedColumn.propertyName] = value;
} else {
entity[this.propertyName] = value;
}
}
}
// ---------------------------------------------------------------------
// Builder Methods
// ---------------------------------------------------------------------
build(connection: Connection): this {
this.propertyPath = this.buildPropertyPath();
this.propertyAliasName = this.propertyPath.replace(".", "_");
this.databaseName = this.buildDatabaseName(connection);
this.databasePath = this.buildDatabasePath();
this.databaseNameWithoutPrefixes = connection.namingStrategy.columnName(this.propertyName, this.givenDatabaseName, []);
return this;
}
protected buildPropertyPath(): string {
let path = "";
if (this.embeddedMetadata && this.embeddedMetadata.parentPropertyNames.length)
path = this.embeddedMetadata.parentPropertyNames.join(".") + ".";
path += this.propertyName;
// we add reference column to property path only if this column is virtual
// because if its not virtual it means user defined a real column for this relation
// also we don't do it if column is inside a junction table
if (!this.entityMetadata.isJunction && this.isVirtual && this.referencedColumn && this.referencedColumn.propertyName !== this.propertyName)
path += "." + this.referencedColumn.propertyName;
return path;
}
protected buildDatabasePath(): string {
let path = "";
if (this.embeddedMetadata && this.embeddedMetadata.parentPropertyNames.length)
path = this.embeddedMetadata.parentPropertyNames.join(".") + ".";
path += this.databaseName;
// we add reference column to property path only if this column is virtual
// because if its not virtual it means user defined a real column for this relation
// also we don't do it if column is inside a junction table
if (!this.entityMetadata.isJunction && this.isVirtual && this.referencedColumn && this.referencedColumn.databaseName !== this.databaseName)
path += "." + this.referencedColumn.databaseName;
return path;
}
protected buildDatabaseName(connection: Connection): string {
let propertyNames = this.embeddedMetadata ? this.embeddedMetadata.parentPrefixes : [];
if (connection.driver instanceof MongoDriver) // we don't need to include embedded name for the mongodb column names
propertyNames = [];
return connection.namingStrategy.columnName(this.propertyName, this.givenDatabaseName, propertyNames);
}
}