typeorm
Version:
Data-Mapper ORM for TypeScript, ES7, ES6, ES5. Supports MySQL, PostgreSQL, MariaDB, SQLite, MS SQL Server, Oracle, MongoDB databases.
123 lines (121 loc) • 5.97 kB
JavaScript
import { TypeORMError } from "../error";
/**
* Index metadata contains all information about table's index.
*/
var IndexMetadata = /** @class */ (function () {
// ---------------------------------------------------------------------
// Constructor
// ---------------------------------------------------------------------
function IndexMetadata(options) {
/**
* Indicates if this index must be unique.
*/
this.isUnique = false;
/**
* The SPATIAL modifier indexes the entire column and does not allow indexed columns to contain NULL values.
* Works only in MySQL.
*/
this.isSpatial = false;
/**
* The FULLTEXT modifier indexes the entire column and does not allow prefixing.
* Works only in MySQL.
*/
this.isFulltext = false;
/**
* Indicates if this index must synchronize with database index.
*/
this.synchronize = true;
/**
* Indexed columns.
*/
this.columns = [];
/**
* Map of column names with order set.
* Used only by MongoDB driver.
*/
this.columnNamesWithOrderingMap = {};
this.entityMetadata = options.entityMetadata;
this.embeddedMetadata = options.embeddedMetadata;
if (options.columns)
this.columns = options.columns;
if (options.args) {
this.target = options.args.target;
if (options.args.synchronize !== null && options.args.synchronize !== undefined)
this.synchronize = options.args.synchronize;
this.isUnique = !!options.args.unique;
this.isSpatial = !!options.args.spatial;
this.isFulltext = !!options.args.fulltext;
this.parser = options.args.parser;
this.where = options.args.where;
this.isSparse = options.args.sparse;
this.isBackground = options.args.background;
this.expireAfterSeconds = options.args.expireAfterSeconds;
this.givenName = options.args.name;
this.givenColumnNames = options.args.columns;
}
}
// ---------------------------------------------------------------------
// Public Build Methods
// ---------------------------------------------------------------------
/**
* Builds some depend index properties.
* Must be called after all entity metadata's properties map, columns and relations are built.
*/
IndexMetadata.prototype.build = function (namingStrategy) {
var _this = this;
if (this.synchronize === false) {
this.name = this.givenName;
return this;
}
var map = {};
// if columns already an array of string then simply return it
if (this.givenColumnNames) {
var columnPropertyPaths = [];
if (Array.isArray(this.givenColumnNames)) {
columnPropertyPaths = this.givenColumnNames.map(function (columnName) {
if (_this.embeddedMetadata)
return _this.embeddedMetadata.propertyPath + "." + columnName;
return columnName.trim();
});
columnPropertyPaths.forEach(function (propertyPath) { return map[propertyPath] = 1; });
}
else { // todo: indices in embeds are not implemented in this syntax. deprecate this syntax?
// 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 (Array.isArray(columnsFnResult_1)) {
columnPropertyPaths = columnsFnResult_1.map(function (i) { return String(i); });
columnPropertyPaths.forEach(function (name) { return map[name] = 1; });
}
else {
columnPropertyPaths = 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 = columnPropertyPaths.map(function (propertyPath) {
var columnWithSameName = _this.entityMetadata.columns.find(function (column) { return column.propertyPath === propertyPath; });
if (columnWithSameName) {
return [columnWithSameName];
}
var relationWithSameName = _this.entityMetadata.relations.find(function (relation) { return relation.isWithJoinColumn && relation.propertyName === propertyPath; });
if (relationWithSameName) {
return relationWithSameName.joinColumns;
}
var indexName = _this.givenName ? "\"" + _this.givenName + "\" " : "";
var entityName = _this.entityMetadata.targetName;
throw new TypeORMError("Index " + indexName + "contains column that is missing in the entity (" + entityName + "): " + propertyPath);
})
.reduce(function (a, b) { return a.concat(b); });
}
this.columnNamesWithOrderingMap = Object.keys(map).reduce(function (updatedMap, key) {
var column = _this.entityMetadata.columns.find(function (column) { return column.propertyPath === key; });
if (column)
updatedMap[column.databasePath] = map[key];
return updatedMap;
}, {});
this.name = this.givenName ? this.givenName : namingStrategy.indexName(this.entityMetadata.tableName, this.columns.map(function (column) { return column.databaseName; }), this.where);
return this;
};
return IndexMetadata;
}());
export { IndexMetadata };
//# sourceMappingURL=IndexMetadata.js.map