typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, MongoDB databases.
184 lines (180 loc) • 8.03 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var QueryBuilderUtils_1 = require("./QueryBuilderUtils");
/**
* Stores all join attributes which will be used to build a JOIN query.
*/
var JoinAttribute = /** @class */ (function () {
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
function JoinAttribute(connection, queryExpressionMap, joinAttribute) {
this.connection = connection;
this.queryExpressionMap = queryExpressionMap;
Object.assign(this, joinAttribute || {});
}
Object.defineProperty(JoinAttribute.prototype, "isMany", {
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
get: function () {
if (this.isMappingMany !== undefined)
return this.isMappingMany;
if (this.relation)
return this.relation.isManyToMany || this.relation.isOneToMany;
return false;
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "isSelected", {
/**
* Indicates if this join is selected.
*/
get: function () {
var _this = this;
var _loop_1 = function (select) {
if (select.selection === this_1.alias.name)
return { value: true };
if (this_1.metadata && !!this_1.metadata.columns.find(function (column) { return select.selection === _this.alias.name + "." + column.propertyPath; }))
return { value: true };
};
var this_1 = this;
for (var _i = 0, _a = this.queryExpressionMap.selects; _i < _a.length; _i++) {
var select = _a[_i];
var state_1 = _loop_1(select);
if (typeof state_1 === "object")
return state_1.value;
}
return false;
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "tablePath", {
/**
* Name of the table which we should join.
*/
get: function () {
return this.metadata ? this.metadata.tablePath : this.entityOrProperty;
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "parentAlias", {
/**
* 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: function () {
if (!QueryBuilderUtils_1.QueryBuilderUtils.isAliasProperty(this.entityOrProperty))
return undefined;
return this.entityOrProperty.substr(0, this.entityOrProperty.indexOf("."));
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "relationPropertyPath", {
/**
* 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: function () {
if (!QueryBuilderUtils_1.QueryBuilderUtils.isAliasProperty(this.entityOrProperty))
return undefined;
return this.entityOrProperty.substr(this.entityOrProperty.indexOf(".") + 1);
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "relation", {
/**
* Relation of the parent.
* This is used to understand what is joined.
* This is available when join was made using "post.category" syntax.
* Relation can be undefined if entityOrProperty is regular entity or custom table.
*/
get: function () {
if (!QueryBuilderUtils_1.QueryBuilderUtils.isAliasProperty(this.entityOrProperty))
return undefined;
var relationOwnerSelection = this.queryExpressionMap.findAliasByName(this.parentAlias);
var relation = relationOwnerSelection.metadata.findRelationWithPropertyPath(this.relationPropertyPath);
if (relation) {
return relation;
}
if (relationOwnerSelection.metadata.parentEntityMetadata) {
relation = relationOwnerSelection.metadata.parentEntityMetadata.findRelationWithPropertyPath(this.relationPropertyPath);
if (relation) {
return relation;
}
}
throw new Error("Relation with property path " + this.relationPropertyPath + " in entity was not found.");
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "metadata", {
/**
* Metadata of the joined entity.
* If table without entity was joined, then it will return undefined.
*/
get: function () {
// entityOrProperty is relation, e.g. "post.category"
if (this.relation)
return this.relation.inverseEntityMetadata;
// entityOrProperty is Entity class
if (this.connection.hasMetadata(this.entityOrProperty))
return this.connection.getMetadata(this.entityOrProperty);
return undefined;
/*if (typeof this.entityOrProperty === "string") { // entityOrProperty is a custom table
// first try to find entity with such name, this is needed when entity does not have a target class,
// and its target is a string name (scenario when plain old javascript is used or entity schema is loaded from files)
const metadata = this.connection.entityMetadatas.find(metadata => metadata.name === this.entityOrProperty);
if (metadata)
return metadata;
// check if we have entity with such table name, and use its metadata if found
return this.connection.entityMetadatas.find(metadata => metadata.tableName === this.entityOrProperty);
}*/
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "junctionAlias", {
/**
* Generates alias of junction table, whose ids we get.
*/
get: function () {
if (!this.relation)
throw new Error("Cannot get junction table for join without relation.");
return this.relation.isOwning ? this.parentAlias + "_" + this.alias.name : this.alias.name + "_" + this.parentAlias;
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "mapToPropertyParentAlias", {
get: function () {
if (!this.mapToProperty)
return undefined;
return this.mapToProperty.split(".")[0];
},
enumerable: true,
configurable: true
});
Object.defineProperty(JoinAttribute.prototype, "mapToPropertyPropertyName", {
get: function () {
if (!this.mapToProperty)
return undefined;
return this.mapToProperty.split(".")[1];
},
enumerable: true,
configurable: true
});
return JoinAttribute;
}());
exports.JoinAttribute = JoinAttribute;
//# sourceMappingURL=JoinAttribute.js.map