typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, MongoDB databases.
72 lines (70 loc) • 3.64 kB
JavaScript
/**
* Unique metadata contains all information about table's unique constraints.
*/
var UniqueMetadata = /** @class */ (function () {
// ---------------------------------------------------------------------
// Constructor
// ---------------------------------------------------------------------
function UniqueMetadata(options) {
/**
* Unique columns.
*/
this.columns = [];
this.entityMetadata = options.entityMetadata;
if (options.columns)
this.columns = options.columns;
if (options.args) {
this.target = options.args.target;
this.givenName = options.args.name;
this.givenColumnNames = options.args.columns;
}
}
// ---------------------------------------------------------------------
// Public Build Methods
// ---------------------------------------------------------------------
/**
* Builds some depend unique constraint properties.
* Must be called after all entity metadata's properties map, columns and relations are built.
*/
UniqueMetadata.prototype.build = function (namingStrategy) {
var _this = this;
var map = {};
// if columns already an array of string then simply return it
if (this.givenColumnNames) {
var columnPropertyNames = [];
if (this.givenColumnNames instanceof Array) {
columnPropertyNames = this.givenColumnNames;
columnPropertyNames.forEach(function (name) { return map[name] = 1; });
}
else {
// if columns is a function that returns array of field names then execute it and get columns names from it
var columnsFnResult_1 = this.givenColumnNames(this.entityMetadata.propertiesMap);
if (columnsFnResult_1 instanceof Array) {
columnPropertyNames = columnsFnResult_1.map(function (i) { return String(i); });
columnPropertyNames.forEach(function (name) { return map[name] = 1; });
}
else {
columnPropertyNames = Object.keys(columnsFnResult_1).map(function (i) { return String(i); });
Object.keys(columnsFnResult_1).forEach(function (columnName) { return map[columnName] = columnsFnResult_1[columnName]; });
}
}
this.columns = columnPropertyNames.map(function (propertyName) {
var columnWithSameName = _this.entityMetadata.columns.find(function (column) { return column.propertyPath === propertyName; });
if (columnWithSameName) {
return [columnWithSameName];
}
var relationWithSameName = _this.entityMetadata.relations.find(function (relation) { return relation.isWithJoinColumn && relation.propertyName === propertyName; });
if (relationWithSameName) {
return relationWithSameName.joinColumns;
}
throw new Error("Unique constraint " + (_this.givenName ? "\"" + _this.givenName + "\" " : "") + "contains column that is missing in the entity: " + propertyName);
})
.reduce(function (a, b) { return a.concat(b); });
}
this.name = this.givenName ? this.givenName : namingStrategy.uniqueConstraintName(this.entityMetadata.tablePath, this.columns.map(function (column) { return column.databaseName; }));
return this;
};
return UniqueMetadata;
}());
export { UniqueMetadata };
//# sourceMappingURL=UniqueMetadata.js.map