@mikro-orm/core/unit-of-work/ChangeSet.js

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.

import { helper } from '../entity/wrap.js';
import { Utils } from '../utils/Utils.js';
import { inspect } from '../logging/inspect.js';
/** Represents a pending change (create, update, or delete) for a single entity. */
export class ChangeSet {
    entity;
    type;
    payload;
    meta;
    primaryKey;
    serializedPrimaryKey;
    constructor(entity, type, payload, meta) {
        this.entity = entity;
        this.type = type;
        this.payload = payload;
        this.meta = meta;
        this.meta = meta;
        this.rootMeta = meta.root;
        this.schema = helper(entity).__schema ?? meta.root.schema;
    }
    /** Returns the primary key of the entity, optionally as an object for composite keys. */
    getPrimaryKey(object = false) {
        if (!this.originalEntity) {
            this.primaryKey ??= helper(this.entity).getPrimaryKey(true);
        }
        else if (this.meta.compositePK) {
            this.primaryKey = this.meta.primaryKeys.map(pk => this.originalEntity[pk]);
        }
        else {
            this.primaryKey = this.originalEntity[this.meta.primaryKeys[0]];
        }
        if (!this.meta.compositePK &&
            this.meta.getPrimaryProp().targetMeta?.compositePK &&
            typeof this.primaryKey === 'object' &&
            this.primaryKey !== null) {
            this.primaryKey = this.meta.getPrimaryProp().targetMeta.primaryKeys.map(childPK => {
                return this.primaryKey[childPK];
            });
        }
        if (object && this.primaryKey != null) {
            return Utils.primaryKeyToObject(this.meta, this.primaryKey);
        }
        return this.primaryKey ?? null;
    }
    /** Returns the serialized (string) form of the primary key. */
    getSerializedPrimaryKey() {
        this.serializedPrimaryKey ??= helper(this.entity).getSerializedPrimaryKey();
        return this.serializedPrimaryKey;
    }
    /** @ignore */
    [Symbol.for('nodejs.util.inspect.custom')](depth = 2) {
        const object = { ...this };
        const hidden = ['meta', 'serializedPrimaryKey'];
        hidden.forEach(k => delete object[k]);
        const ret = inspect(object, { depth });
        const name = `${this.constructor.name}<${this.meta.className}>`;
        /* v8 ignore next */
        return ret === '[Object]' ? `[${name}]` : name + ' ' + ret;
    }
}
/** Enumeration of change set operation types. */
export var ChangeSetType;
(function (ChangeSetType) {
    ChangeSetType["CREATE"] = "create";
    ChangeSetType["UPDATE"] = "update";
    ChangeSetType["DELETE"] = "delete";
    ChangeSetType["UPDATE_EARLY"] = "update_early";
    ChangeSetType["DELETE_EARLY"] = "delete_early";
})(ChangeSetType || (ChangeSetType = {}));