typeorm
Version:
Data-Mapper ORM for TypeScript and ES2021+. Supports MySQL/MariaDB, PostgreSQL, MS SQL Server, Oracle, SAP HANA, SQLite, MongoDB databases.
146 lines (144 loc) • 6.85 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DefaultNamingStrategy = void 0;
const RandomGenerator_1 = require("../util/RandomGenerator");
const StringUtils_1 = require("../util/StringUtils");
/**
* Naming strategy that is used by default.
*/
class DefaultNamingStrategy {
constructor() {
this.nestedSetColumnNames = { left: "nsleft", right: "nsright" };
this.materializedPathColumnName = "mpath";
}
getTableName(tableOrName) {
if (typeof tableOrName !== "string") {
tableOrName = tableOrName.name;
}
return tableOrName.split(".").pop();
}
/**
* Normalizes table name.
*
* @param targetName Name of the target entity that can be used to generate a table name.
* @param userSpecifiedName For example if user specified a table name in a decorator, e.g. @Entity("name")
*/
tableName(targetName, userSpecifiedName) {
return userSpecifiedName ? userSpecifiedName : (0, StringUtils_1.snakeCase)(targetName);
}
/**
* Creates a table name for a junction table of a closure table.
*
* @param originalClosureTableName Name of the closure table which owns this junction table.
*/
closureJunctionTableName(originalClosureTableName) {
return originalClosureTableName + "_closure";
}
columnName(propertyName, customName, embeddedPrefixes) {
const name = customName || propertyName;
if (embeddedPrefixes.length)
return (0, StringUtils_1.camelCase)(embeddedPrefixes.join("_")) + (0, StringUtils_1.titleCase)(name);
return name;
}
relationName(propertyName) {
return propertyName;
}
primaryKeyName(tableOrName, columnNames) {
// sort incoming column names to avoid issue when ["id", "name"] and ["name", "id"] arrays
const clonedColumnNames = [...columnNames];
clonedColumnNames.sort();
const tableName = this.getTableName(tableOrName);
const replacedTableName = tableName.replace(".", "_");
const key = `${replacedTableName}_${clonedColumnNames.join("_")}`;
return "PK_" + RandomGenerator_1.RandomGenerator.sha1(key).substr(0, 27);
}
uniqueConstraintName(tableOrName, columnNames) {
// sort incoming column names to avoid issue when ["id", "name"] and ["name", "id"] arrays
const clonedColumnNames = [...columnNames];
clonedColumnNames.sort();
const tableName = this.getTableName(tableOrName);
const replacedTableName = tableName.replace(".", "_");
const key = `${replacedTableName}_${clonedColumnNames.join("_")}`;
return "UQ_" + RandomGenerator_1.RandomGenerator.sha1(key).substr(0, 27);
}
relationConstraintName(tableOrName, columnNames, where) {
// sort incoming column names to avoid issue when ["id", "name"] and ["name", "id"] arrays
const clonedColumnNames = [...columnNames];
clonedColumnNames.sort();
const tableName = this.getTableName(tableOrName);
const replacedTableName = tableName.replace(".", "_");
let key = `${replacedTableName}_${clonedColumnNames.join("_")}`;
if (where)
key += `_${where}`;
return "REL_" + RandomGenerator_1.RandomGenerator.sha1(key).substr(0, 26);
}
defaultConstraintName(tableOrName, columnName) {
const tableName = this.getTableName(tableOrName);
const replacedTableName = tableName.replace(".", "_");
const key = `${replacedTableName}_${columnName}`;
return "DF_" + RandomGenerator_1.RandomGenerator.sha1(key).substr(0, 27);
}
foreignKeyName(tableOrName, columnNames, _referencedTablePath, _referencedColumnNames) {
// sort incoming column names to avoid issue when ["id", "name"] and ["name", "id"] arrays
const clonedColumnNames = [...columnNames];
clonedColumnNames.sort();
const tableName = this.getTableName(tableOrName);
const replacedTableName = tableName.replace(".", "_");
const key = `${replacedTableName}_${clonedColumnNames.join("_")}`;
return "FK_" + RandomGenerator_1.RandomGenerator.sha1(key).substr(0, 27);
}
indexName(tableOrName, columnNames, where) {
// sort incoming column names to avoid issue when ["id", "name"] and ["name", "id"] arrays
const clonedColumnNames = [...columnNames];
clonedColumnNames.sort();
const tableName = this.getTableName(tableOrName);
const replacedTableName = tableName.replace(".", "_");
let key = `${replacedTableName}_${clonedColumnNames.join("_")}`;
if (where)
key += `_${where}`;
return "IDX_" + RandomGenerator_1.RandomGenerator.sha1(key).substr(0, 26);
}
checkConstraintName(tableOrName, expression, isEnum) {
const tableName = this.getTableName(tableOrName);
const replacedTableName = tableName.replace(".", "_");
const key = `${replacedTableName}_${expression}`;
const name = "CHK_" + RandomGenerator_1.RandomGenerator.sha1(key).substr(0, 26);
return isEnum ? `${name}_ENUM` : name;
}
exclusionConstraintName(tableOrName, expression) {
const tableName = this.getTableName(tableOrName);
const replacedTableName = tableName.replace(".", "_");
const key = `${replacedTableName}_${expression}`;
return "XCL_" + RandomGenerator_1.RandomGenerator.sha1(key).substr(0, 26);
}
joinColumnName(relationName, referencedColumnName) {
return (0, StringUtils_1.camelCase)(relationName + "_" + referencedColumnName);
}
joinTableName(firstTableName, secondTableName, firstPropertyName, secondPropertyName) {
return (0, StringUtils_1.snakeCase)(firstTableName +
"_" +
firstPropertyName.replace(/\./gi, "_") +
"_" +
secondTableName);
}
joinTableColumnDuplicationPrefix(columnName, index) {
return columnName + "_" + index;
}
joinTableColumnName(tableName, propertyName, columnName) {
return (0, StringUtils_1.camelCase)(tableName + "_" + (columnName ? columnName : propertyName));
}
joinTableInverseColumnName(tableName, propertyName, columnName) {
return this.joinTableColumnName(tableName, propertyName, columnName);
}
/**
* Adds globally set prefix to the table name.
* This method is executed no matter if prefix was set or not.
* Table name is either user's given table name, either name generated from entity target.
* Note that table name comes here already normalized by #tableName method.
*/
prefixTableName(prefix, tableName) {
return prefix + tableName;
}
}
exports.DefaultNamingStrategy = DefaultNamingStrategy;
//# sourceMappingURL=DefaultNamingStrategy.js.map