@mikro-orm/core
Version:
TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.
196 lines (195 loc) • 9.49 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.EntityMetadata = exports.Config = exports.HiddenProps = exports.EagerProps = exports.OptionalProps = exports.PrimaryKeyProp = exports.EntityRepositoryType = void 0;
const enums_1 = require("./enums");
const entity_1 = require("./entity");
const Utils_1 = require("./utils/Utils");
const EntityComparator_1 = require("./utils/EntityComparator");
exports.EntityRepositoryType = Symbol('EntityRepositoryType');
exports.PrimaryKeyProp = Symbol('PrimaryKeyProp');
exports.OptionalProps = Symbol('OptionalProps');
exports.EagerProps = Symbol('EagerProps');
exports.HiddenProps = Symbol('HiddenProps');
exports.Config = Symbol('Config');
class EntityMetadata {
static counter = 0;
_id = 1000 * EntityMetadata.counter++; // keep the id >= 1000 to allow computing cache keys by simple addition
propertyOrder = new Map();
constructor(meta = {}) {
this.properties = {};
this.props = [];
this.primaryKeys = [];
this.filters = {};
this.hooks = {};
this.indexes = [];
this.uniques = [];
this.checks = [];
this.referencingProperties = [];
this.concurrencyCheckKeys = new Set();
Object.assign(this, meta);
}
addProperty(prop, sync = true) {
if (prop.pivotTable && !prop.pivotEntity) {
prop.pivotEntity = prop.pivotTable;
}
this.properties[prop.name] = prop;
this.propertyOrder.set(prop.name, this.props.length);
/* istanbul ignore next */
if (sync) {
this.sync();
}
}
removeProperty(name, sync = true) {
delete this.properties[name];
this.propertyOrder.delete(name);
/* istanbul ignore next */
if (sync) {
this.sync();
}
}
getPrimaryProps(flatten = false) {
const pks = this.primaryKeys.map(pk => this.properties[pk]);
if (flatten) {
return pks.flatMap(pk => {
if ([enums_1.ReferenceKind.MANY_TO_ONE, enums_1.ReferenceKind.ONE_TO_ONE].includes(pk.kind)) {
return pk.targetMeta.getPrimaryProps(true);
}
return [pk];
});
}
return pks;
}
getPrimaryProp() {
return this.properties[this.primaryKeys[0]];
}
createColumnMappingObject() {
return Object.values(this.properties).reduce((o, prop) => {
if (prop.fieldNames) {
o[prop.name] = prop.fieldNames[0];
}
return o;
}, {});
}
get tableName() {
return this.collection;
}
set tableName(name) {
this.collection = name;
}
sync(initIndexes = false) {
this.root ??= this;
const props = Object.values(this.properties).sort((a, b) => this.propertyOrder.get(a.name) - this.propertyOrder.get(b.name));
this.props = [...props.filter(p => p.primary), ...props.filter(p => !p.primary)];
this.relations = this.props.filter(prop => typeof prop.kind !== 'undefined' && prop.kind !== enums_1.ReferenceKind.SCALAR && prop.kind !== enums_1.ReferenceKind.EMBEDDED);
this.bidirectionalRelations = this.relations.filter(prop => prop.mappedBy || prop.inversedBy);
this.uniqueProps = this.props.filter(prop => prop.unique);
this.getterProps = this.props.filter(prop => prop.getter);
this.comparableProps = this.props.filter(prop => EntityComparator_1.EntityComparator.isComparable(prop, this));
this.hydrateProps = this.props.filter(prop => {
// `prop.userDefined` is either `undefined` or `false`
const discriminator = this.root.discriminatorColumn === prop.name && prop.userDefined === false;
// even if we don't have a setter, do not ignore value from database!
const onlyGetter = prop.getter && !prop.setter && prop.persist === false;
return !prop.inherited && prop.hydrate !== false && !discriminator && !prop.embedded && !onlyGetter;
});
this.trackingProps = this.hydrateProps
.filter(prop => !prop.getter && !prop.setter && prop.trackChanges !== false)
.filter(prop => ![enums_1.ReferenceKind.ONE_TO_MANY, enums_1.ReferenceKind.MANY_TO_MANY].includes(prop.kind))
.filter(prop => !prop.serializedPrimaryKey);
this.selfReferencing = this.relations.some(prop => [this.className, this.root.className].includes(prop.targetMeta?.root.className ?? prop.type));
this.hasUniqueProps = this.uniques.length + this.uniqueProps.length > 0;
this.virtual = !!this.expression;
this.checks = Utils_1.Utils.removeDuplicates(this.checks);
this.indexes = Utils_1.Utils.removeDuplicates(this.indexes);
this.uniques = Utils_1.Utils.removeDuplicates(this.uniques);
for (const hook of Utils_1.Utils.keys(this.hooks)) {
this.hooks[hook] = Utils_1.Utils.removeDuplicates(this.hooks[hook]);
}
if (this.virtual) {
this.readonly = true;
}
if (initIndexes && this.name) {
this.props.forEach(prop => this.initIndexes(prop));
}
this.definedProperties = this.trackingProps.reduce((o, prop) => {
const isCollection = [enums_1.ReferenceKind.ONE_TO_MANY, enums_1.ReferenceKind.MANY_TO_MANY].includes(prop.kind);
const isReference = [enums_1.ReferenceKind.ONE_TO_ONE, enums_1.ReferenceKind.MANY_TO_ONE].includes(prop.kind) && (prop.inversedBy || prop.mappedBy) && !prop.mapToPk;
if (isReference) {
// eslint-disable-next-line @typescript-eslint/no-this-alias
const meta = this;
o[prop.name] = {
get() {
return this.__helper.__data[prop.name];
},
set(val) {
const wrapped = this.__helper;
const hydrator = wrapped.hydrator;
const entity = entity_1.Reference.unwrapReference(val ?? wrapped.__data[prop.name]);
const old = entity_1.Reference.unwrapReference(wrapped.__data[prop.name]);
if (old && old !== entity && prop.kind === enums_1.ReferenceKind.MANY_TO_ONE && prop.inversedBy && old[prop.inversedBy]) {
old[prop.inversedBy].removeWithoutPropagation(this);
}
wrapped.__data[prop.name] = entity_1.Reference.wrapReference(val, prop);
// when propagation from inside hydration, we set the FK to the entity data immediately
if (val && hydrator.isRunning() && wrapped.__originalEntityData && prop.owner) {
wrapped.__originalEntityData[prop.name] = Utils_1.Utils.getPrimaryKeyValues(val, prop.targetMeta, true);
}
else {
wrapped.__touched = !hydrator.isRunning();
}
entity_1.EntityHelper.propagate(meta, entity, this, prop, entity_1.Reference.unwrapReference(val), old);
},
enumerable: true,
configurable: true,
};
}
if (prop.inherited || prop.primary || isCollection || prop.persist === false || prop.trackChanges === false || isReference || prop.embedded) {
return o;
}
o[prop.name] = {
get() {
return this.__helper.__data[prop.name];
},
set(val) {
if (typeof val === 'object' && !!val && '__raw' in val) {
val.assign();
}
this.__helper.__data[prop.name] = val;
this.__helper.__touched = !this.__helper.hydrator.isRunning();
},
enumerable: true,
configurable: true,
};
return o;
}, { __gettersDefined: { value: true, enumerable: false } });
}
initIndexes(prop) {
const simpleIndex = this.indexes.find(index => index.properties === prop.name && !index.options && !index.type && !index.expression);
const simpleUnique = this.uniques.find(index => index.properties === prop.name && !index.options);
const owner = prop.kind === enums_1.ReferenceKind.MANY_TO_ONE;
if (!prop.index && simpleIndex) {
Utils_1.Utils.defaultValue(simpleIndex, 'name', true);
prop.index = simpleIndex.name;
this.indexes.splice(this.indexes.indexOf(simpleIndex), 1);
}
if (!prop.unique && simpleUnique) {
Utils_1.Utils.defaultValue(simpleUnique, 'name', true);
prop.unique = simpleUnique.name;
this.uniques.splice(this.uniques.indexOf(simpleUnique), 1);
}
if (prop.index && owner && prop.fieldNames.length > 1) {
this.indexes.push({ properties: prop.name });
prop.index = false;
}
/* istanbul ignore next */
if (owner && prop.fieldNames.length > 1 && prop.unique) {
this.uniques.push({ properties: prop.name });
prop.unique = false;
}
}
/** @internal */
clone() {
return this;
}
}
exports.EntityMetadata = EntityMetadata;