typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, MongoDB databases.
141 lines (139 loc) • 9 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = y[op[0] & 2 ? "return" : op[0] ? "throw" : "next"]) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [0, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
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case 7: op = _.ops.pop(); _.trys.pop(); continue;
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if (t[2]) _.ops.pop();
_.trys.pop(); continue;
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op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
/**
* Allows to work with entity relations and perform specific operations with those relations.
*
* todo: add transactions everywhere
*/
var RelationRemover = /** @class */ (function () {
// -------------------------------------------------------------------------
// Constructor
// -------------------------------------------------------------------------
function RelationRemover(queryBuilder, expressionMap) {
this.queryBuilder = queryBuilder;
this.expressionMap = expressionMap;
}
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
/**
* Performs remove operation on a relation.
*/
RelationRemover.prototype.remove = function (value) {
return __awaiter(this, void 0, void 0, function () {
var relation, ofs, values_1, updateSet_1, parameters_1, conditions_1, condition, junctionMetadata_1, ofs, values, firstColumnValues, secondColumnValues_1, parameters_2, conditions_2, condition;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
relation = this.expressionMap.relationMetadata;
if (!relation.isOneToMany) return [3 /*break*/, 2];
ofs = this.expressionMap.of instanceof Array ? this.expressionMap.of : [this.expressionMap.of];
values_1 = value instanceof Array ? value : [value];
updateSet_1 = {};
relation.inverseRelation.joinColumns.forEach(function (column) {
updateSet_1[column.propertyName] = null;
});
parameters_1 = {};
conditions_1 = [];
ofs.forEach(function (of, ofIndex) {
conditions_1.push.apply(conditions_1, values_1.map(function (value, valueIndex) {
return relation.inverseRelation.joinColumns.map(function (column, columnIndex) {
var parameterName = "joinColumn_" + ofIndex + "_" + valueIndex + "_" + columnIndex;
parameters_1[parameterName] = of instanceof Object ? column.referencedColumn.getEntityValue(of) : of;
return column.propertyPath + " = :" + parameterName;
}).concat(relation.inverseRelation.entityMetadata.primaryColumns.map(function (column, columnIndex) {
var parameterName = "primaryColumn_" + valueIndex + "_" + valueIndex + "_" + columnIndex;
parameters_1[parameterName] = value instanceof Object ? column.getEntityValue(value) : value;
return column.propertyPath + " = :" + parameterName;
})).join(" AND ");
}));
});
condition = conditions_1.map(function (str) { return "(" + str + ")"; }).join(" OR ");
if (!condition)
return [2 /*return*/];
return [4 /*yield*/, this.queryBuilder
.createQueryBuilder()
.update(relation.inverseEntityMetadata.target)
.set(updateSet_1)
.where(condition)
.setParameters(parameters_1)
.execute()];
case 1:
_a.sent();
return [3 /*break*/, 4];
case 2:
junctionMetadata_1 = relation.junctionEntityMetadata;
ofs = this.expressionMap.of instanceof Array ? this.expressionMap.of : [this.expressionMap.of];
values = value instanceof Array ? value : [value];
firstColumnValues = relation.isManyToManyOwner ? ofs : values;
secondColumnValues_1 = relation.isManyToManyOwner ? values : ofs;
parameters_2 = {};
conditions_2 = [];
firstColumnValues.forEach(function (firstColumnVal, firstColumnValIndex) {
conditions_2.push.apply(conditions_2, secondColumnValues_1.map(function (secondColumnVal, secondColumnValIndex) {
return junctionMetadata_1.ownerColumns.map(function (column, columnIndex) {
var parameterName = "firstValue_" + firstColumnValIndex + "_" + secondColumnValIndex + "_" + columnIndex;
parameters_2[parameterName] = firstColumnVal instanceof Object ? column.referencedColumn.getEntityValue(firstColumnVal) : firstColumnVal;
return column.databaseName + " = :" + parameterName;
}).concat(junctionMetadata_1.inverseColumns.map(function (column, columnIndex) {
var parameterName = "secondValue_" + firstColumnValIndex + "_" + secondColumnValIndex + "_" + columnIndex;
parameters_2[parameterName] = firstColumnVal instanceof Object ? column.referencedColumn.getEntityValue(secondColumnVal) : secondColumnVal;
return column.databaseName + " = :" + parameterName;
})).join(" AND ");
}));
});
condition = conditions_2.map(function (str) { return "(" + str + ")"; }).join(" OR ");
return [4 /*yield*/, this.queryBuilder
.createQueryBuilder()
.delete()
.from(junctionMetadata_1.tableName)
.where(condition)
.setParameters(parameters_2)
.execute()];
case 3:
_a.sent();
_a.label = 4;
case 4: return [2 /*return*/];
}
});
});
};
return RelationRemover;
}());
exports.RelationRemover = RelationRemover;
//# sourceMappingURL=RelationRemover.js.map