typeorm
Version:
Data-Mapper ORM for TypeScript and ES2021+. Supports MySQL/MariaDB, PostgreSQL, MS SQL Server, Oracle, SAP HANA, SQLite, MongoDB databases.
81 lines (79 loc) • 3.9 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.RelationCountAttribute = void 0;
const QueryBuilderUtils_1 = require("../QueryBuilderUtils");
const ObjectUtils_1 = require("../../util/ObjectUtils");
const TypeORMError_1 = require("../../error/TypeORMError");
class RelationCountAttribute {
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
constructor(expressionMap, relationCountAttribute) {
this.expressionMap = expressionMap;
ObjectUtils_1.ObjectUtils.assign(this, relationCountAttribute || {});
}
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
get joinInverseSideMetadata() {
return this.relation.inverseEntityMetadata;
}
/**
* Alias of the parent of this join.
* For example, if we join ("post.category", "categoryAlias") then "post" is a parent alias.
* This value is extracted from entityOrProperty value.
* This is available when join was made using "post.category" syntax.
*/
get parentAlias() {
if (!QueryBuilderUtils_1.QueryBuilderUtils.isAliasProperty(this.relationName))
throw new TypeORMError_1.TypeORMError(`Given value must be a string representation of alias property`);
return this.relationName.split(".")[0];
}
/**
* Relation property name of the parent.
* This is used to understand what is joined.
* For example, if we join ("post.category", "categoryAlias") then "category" is a relation property.
* This value is extracted from entityOrProperty value.
* This is available when join was made using "post.category" syntax.
*/
get relationProperty() {
if (!QueryBuilderUtils_1.QueryBuilderUtils.isAliasProperty(this.relationName))
throw new TypeORMError_1.TypeORMError(`Given value is a string representation of alias property`);
return this.relationName.split(".")[1];
}
get junctionAlias() {
const [parentAlias, relationProperty] = this.relationName.split(".");
return parentAlias + "_" + relationProperty + "_rc";
}
/**
* Relation of the parent.
* This is used to understand what is joined.
* This is available when join was made using "post.category" syntax.
*/
get relation() {
if (!QueryBuilderUtils_1.QueryBuilderUtils.isAliasProperty(this.relationName))
throw new TypeORMError_1.TypeORMError(`Given value is a string representation of alias property`);
const [parentAlias, propertyPath] = this.relationName.split(".");
const relationOwnerSelection = this.expressionMap.findAliasByName(parentAlias);
const relation = relationOwnerSelection.metadata.findRelationWithPropertyPath(propertyPath);
if (!relation)
throw new TypeORMError_1.TypeORMError(`Relation with property path ${propertyPath} in entity was not found.`);
return relation;
}
/**
* Metadata of the joined entity.
* If table without entity was joined, then it will return undefined.
*/
get metadata() {
if (!QueryBuilderUtils_1.QueryBuilderUtils.isAliasProperty(this.relationName))
throw new TypeORMError_1.TypeORMError(`Given value is a string representation of alias property`);
const parentAlias = this.relationName.split(".")[0];
const selection = this.expressionMap.findAliasByName(parentAlias);
return selection.metadata;
}
get mapToPropertyPropertyName() {
return this.mapToProperty.split(".")[1];
}
}
exports.RelationCountAttribute = RelationCountAttribute;
//# sourceMappingURL=RelationCountAttribute.js.map