drizzle-orm
Version:
Drizzle ORM package for SQL databases
665 lines • 21 kB
JavaScript
import { entityKind, is } from "../../entity.js";
import { TypedQueryBuilder } from "../../query-builders/query-builder.js";
import { QueryPromise } from "../../query-promise.js";
import { SelectionProxyHandler } from "../../selection-proxy.js";
import { SQL, View } from "../../sql/sql.js";
import { Subquery } from "../../subquery.js";
import { Table } from "../../table.js";
import {
applyMixins,
getTableColumns,
getTableLikeName,
haveSameKeys,
orderSelectedFields
} from "../../utils.js";
import { ViewBaseConfig } from "../../view-common.js";
import { SQLiteViewBase } from "../view-base.js";
class SQLiteSelectBuilder {
static [entityKind] = "SQLiteSelectBuilder";
fields;
session;
dialect;
withList;
distinct;
constructor(config) {
this.fields = config.fields;
this.session = config.session;
this.dialect = config.dialect;
this.withList = config.withList;
this.distinct = config.distinct;
}
from(source) {
const isPartialSelect = !!this.fields;
let fields;
if (this.fields) {
fields = this.fields;
} else if (is(source, Subquery)) {
fields = Object.fromEntries(
Object.keys(source._.selectedFields).map((key) => [key, source[key]])
);
} else if (is(source, SQLiteViewBase)) {
fields = source[ViewBaseConfig].selectedFields;
} else if (is(source, SQL)) {
fields = {};
} else {
fields = getTableColumns(source);
}
return new SQLiteSelectBase({
table: source,
fields,
isPartialSelect,
session: this.session,
dialect: this.dialect,
withList: this.withList,
distinct: this.distinct
});
}
}
class SQLiteSelectQueryBuilderBase extends TypedQueryBuilder {
static [entityKind] = "SQLiteSelectQueryBuilder";
_;
/** @internal */
config;
joinsNotNullableMap;
tableName;
isPartialSelect;
session;
dialect;
constructor({ table, fields, isPartialSelect, session, dialect, withList, distinct }) {
super();
this.config = {
withList,
table,
fields: { ...fields },
distinct,
setOperators: []
};
this.isPartialSelect = isPartialSelect;
this.session = session;
this.dialect = dialect;
this._ = {
selectedFields: fields
};
this.tableName = getTableLikeName(table);
this.joinsNotNullableMap = typeof this.tableName === "string" ? { [this.tableName]: true } : {};
}
createJoin(joinType) {
return (table, on) => {
const baseTableName = this.tableName;
const tableName = getTableLikeName(table);
if (typeof tableName === "string" && this.config.joins?.some((join) => join.alias === tableName)) {
throw new Error(`Alias "${tableName}" is already used in this query`);
}
if (!this.isPartialSelect) {
if (Object.keys(this.joinsNotNullableMap).length === 1 && typeof baseTableName === "string") {
this.config.fields = {
[baseTableName]: this.config.fields
};
}
if (typeof tableName === "string" && !is(table, SQL)) {
const selection = is(table, Subquery) ? table._.selectedFields : is(table, View) ? table[ViewBaseConfig].selectedFields : table[Table.Symbol.Columns];
this.config.fields[tableName] = selection;
}
}
if (typeof on === "function") {
on = on(
new Proxy(
this.config.fields,
new SelectionProxyHandler({ sqlAliasedBehavior: "sql", sqlBehavior: "sql" })
)
);
}
if (!this.config.joins) {
this.config.joins = [];
}
this.config.joins.push({ on, table, joinType, alias: tableName });
if (typeof tableName === "string") {
switch (joinType) {
case "left": {
this.joinsNotNullableMap[tableName] = false;
break;
}
case "right": {
this.joinsNotNullableMap = Object.fromEntries(
Object.entries(this.joinsNotNullableMap).map(([key]) => [key, false])
);
this.joinsNotNullableMap[tableName] = true;
break;
}
case "cross":
case "inner": {
this.joinsNotNullableMap[tableName] = true;
break;
}
case "full": {
this.joinsNotNullableMap = Object.fromEntries(
Object.entries(this.joinsNotNullableMap).map(([key]) => [key, false])
);
this.joinsNotNullableMap[tableName] = false;
break;
}
}
}
return this;
};
}
/**
* Executes a `left join` operation by adding another table to the current query.
*
* Calling this method associates each row of the table with the corresponding row from the joined table, if a match is found. If no matching row exists, it sets all columns of the joined table to null.
*
* See docs: {@link https://orm.drizzle.team/docs/joins#left-join}
*
* @param table the table to join.
* @param on the `on` clause.
*
* @example
*
* ```ts
* // Select all users and their pets
* const usersWithPets: { user: User; pets: Pet | null; }[] = await db.select()
* .from(users)
* .leftJoin(pets, eq(users.id, pets.ownerId))
*
* // Select userId and petId
* const usersIdsAndPetIds: { userId: number; petId: number | null; }[] = await db.select({
* userId: users.id,
* petId: pets.id,
* })
* .from(users)
* .leftJoin(pets, eq(users.id, pets.ownerId))
* ```
*/
leftJoin = this.createJoin("left");
/**
* Executes a `right join` operation by adding another table to the current query.
*
* Calling this method associates each row of the joined table with the corresponding row from the main table, if a match is found. If no matching row exists, it sets all columns of the main table to null.
*
* See docs: {@link https://orm.drizzle.team/docs/joins#right-join}
*
* @param table the table to join.
* @param on the `on` clause.
*
* @example
*
* ```ts
* // Select all users and their pets
* const usersWithPets: { user: User | null; pets: Pet; }[] = await db.select()
* .from(users)
* .rightJoin(pets, eq(users.id, pets.ownerId))
*
* // Select userId and petId
* const usersIdsAndPetIds: { userId: number | null; petId: number; }[] = await db.select({
* userId: users.id,
* petId: pets.id,
* })
* .from(users)
* .rightJoin(pets, eq(users.id, pets.ownerId))
* ```
*/
rightJoin = this.createJoin("right");
/**
* Executes an `inner join` operation, creating a new table by combining rows from two tables that have matching values.
*
* Calling this method retrieves rows that have corresponding entries in both joined tables. Rows without matching entries in either table are excluded, resulting in a table that includes only matching pairs.
*
* See docs: {@link https://orm.drizzle.team/docs/joins#inner-join}
*
* @param table the table to join.
* @param on the `on` clause.
*
* @example
*
* ```ts
* // Select all users and their pets
* const usersWithPets: { user: User; pets: Pet; }[] = await db.select()
* .from(users)
* .innerJoin(pets, eq(users.id, pets.ownerId))
*
* // Select userId and petId
* const usersIdsAndPetIds: { userId: number; petId: number; }[] = await db.select({
* userId: users.id,
* petId: pets.id,
* })
* .from(users)
* .innerJoin(pets, eq(users.id, pets.ownerId))
* ```
*/
innerJoin = this.createJoin("inner");
/**
* Executes a `full join` operation by combining rows from two tables into a new table.
*
* Calling this method retrieves all rows from both main and joined tables, merging rows with matching values and filling in `null` for non-matching columns.
*
* See docs: {@link https://orm.drizzle.team/docs/joins#full-join}
*
* @param table the table to join.
* @param on the `on` clause.
*
* @example
*
* ```ts
* // Select all users and their pets
* const usersWithPets: { user: User | null; pets: Pet | null; }[] = await db.select()
* .from(users)
* .fullJoin(pets, eq(users.id, pets.ownerId))
*
* // Select userId and petId
* const usersIdsAndPetIds: { userId: number | null; petId: number | null; }[] = await db.select({
* userId: users.id,
* petId: pets.id,
* })
* .from(users)
* .fullJoin(pets, eq(users.id, pets.ownerId))
* ```
*/
fullJoin = this.createJoin("full");
/**
* Executes a `cross join` operation by combining rows from two tables into a new table.
*
* Calling this method retrieves all rows from both main and joined tables, merging all rows from each table.
*
* See docs: {@link https://orm.drizzle.team/docs/joins#cross-join}
*
* @param table the table to join.
*
* @example
*
* ```ts
* // Select all users, each user with every pet
* const usersWithPets: { user: User; pets: Pet; }[] = await db.select()
* .from(users)
* .crossJoin(pets)
*
* // Select userId and petId
* const usersIdsAndPetIds: { userId: number; petId: number; }[] = await db.select({
* userId: users.id,
* petId: pets.id,
* })
* .from(users)
* .crossJoin(pets)
* ```
*/
crossJoin = this.createJoin("cross");
createSetOperator(type, isAll) {
return (rightSelection) => {
const rightSelect = typeof rightSelection === "function" ? rightSelection(getSQLiteSetOperators()) : rightSelection;
if (!haveSameKeys(this.getSelectedFields(), rightSelect.getSelectedFields())) {
throw new Error(
"Set operator error (union / intersect / except): selected fields are not the same or are in a different order"
);
}
this.config.setOperators.push({ type, isAll, rightSelect });
return this;
};
}
/**
* Adds `union` set operator to the query.
*
* Calling this method will combine the result sets of the `select` statements and remove any duplicate rows that appear across them.
*
* See docs: {@link https://orm.drizzle.team/docs/set-operations#union}
*
* @example
*
* ```ts
* // Select all unique names from customers and users tables
* await db.select({ name: users.name })
* .from(users)
* .union(
* db.select({ name: customers.name }).from(customers)
* );
* // or
* import { union } from 'drizzle-orm/sqlite-core'
*
* await union(
* db.select({ name: users.name }).from(users),
* db.select({ name: customers.name }).from(customers)
* );
* ```
*/
union = this.createSetOperator("union", false);
/**
* Adds `union all` set operator to the query.
*
* Calling this method will combine the result-set of the `select` statements and keep all duplicate rows that appear across them.
*
* See docs: {@link https://orm.drizzle.team/docs/set-operations#union-all}
*
* @example
*
* ```ts
* // Select all transaction ids from both online and in-store sales
* await db.select({ transaction: onlineSales.transactionId })
* .from(onlineSales)
* .unionAll(
* db.select({ transaction: inStoreSales.transactionId }).from(inStoreSales)
* );
* // or
* import { unionAll } from 'drizzle-orm/sqlite-core'
*
* await unionAll(
* db.select({ transaction: onlineSales.transactionId }).from(onlineSales),
* db.select({ transaction: inStoreSales.transactionId }).from(inStoreSales)
* );
* ```
*/
unionAll = this.createSetOperator("union", true);
/**
* Adds `intersect` set operator to the query.
*
* Calling this method will retain only the rows that are present in both result sets and eliminate duplicates.
*
* See docs: {@link https://orm.drizzle.team/docs/set-operations#intersect}
*
* @example
*
* ```ts
* // Select course names that are offered in both departments A and B
* await db.select({ courseName: depA.courseName })
* .from(depA)
* .intersect(
* db.select({ courseName: depB.courseName }).from(depB)
* );
* // or
* import { intersect } from 'drizzle-orm/sqlite-core'
*
* await intersect(
* db.select({ courseName: depA.courseName }).from(depA),
* db.select({ courseName: depB.courseName }).from(depB)
* );
* ```
*/
intersect = this.createSetOperator("intersect", false);
/**
* Adds `except` set operator to the query.
*
* Calling this method will retrieve all unique rows from the left query, except for the rows that are present in the result set of the right query.
*
* See docs: {@link https://orm.drizzle.team/docs/set-operations#except}
*
* @example
*
* ```ts
* // Select all courses offered in department A but not in department B
* await db.select({ courseName: depA.courseName })
* .from(depA)
* .except(
* db.select({ courseName: depB.courseName }).from(depB)
* );
* // or
* import { except } from 'drizzle-orm/sqlite-core'
*
* await except(
* db.select({ courseName: depA.courseName }).from(depA),
* db.select({ courseName: depB.courseName }).from(depB)
* );
* ```
*/
except = this.createSetOperator("except", false);
/** @internal */
addSetOperators(setOperators) {
this.config.setOperators.push(...setOperators);
return this;
}
/**
* Adds a `where` clause to the query.
*
* Calling this method will select only those rows that fulfill a specified condition.
*
* See docs: {@link https://orm.drizzle.team/docs/select#filtering}
*
* @param where the `where` clause.
*
* @example
* You can use conditional operators and `sql function` to filter the rows to be selected.
*
* ```ts
* // Select all cars with green color
* await db.select().from(cars).where(eq(cars.color, 'green'));
* // or
* await db.select().from(cars).where(sql`${cars.color} = 'green'`)
* ```
*
* You can logically combine conditional operators with `and()` and `or()` operators:
*
* ```ts
* // Select all BMW cars with a green color
* await db.select().from(cars).where(and(eq(cars.color, 'green'), eq(cars.brand, 'BMW')));
*
* // Select all cars with the green or blue color
* await db.select().from(cars).where(or(eq(cars.color, 'green'), eq(cars.color, 'blue')));
* ```
*/
where(where) {
if (typeof where === "function") {
where = where(
new Proxy(
this.config.fields,
new SelectionProxyHandler({ sqlAliasedBehavior: "sql", sqlBehavior: "sql" })
)
);
}
this.config.where = where;
return this;
}
/**
* Adds a `having` clause to the query.
*
* Calling this method will select only those rows that fulfill a specified condition. It is typically used with aggregate functions to filter the aggregated data based on a specified condition.
*
* See docs: {@link https://orm.drizzle.team/docs/select#aggregations}
*
* @param having the `having` clause.
*
* @example
*
* ```ts
* // Select all brands with more than one car
* await db.select({
* brand: cars.brand,
* count: sql<number>`cast(count(${cars.id}) as int)`,
* })
* .from(cars)
* .groupBy(cars.brand)
* .having(({ count }) => gt(count, 1));
* ```
*/
having(having) {
if (typeof having === "function") {
having = having(
new Proxy(
this.config.fields,
new SelectionProxyHandler({ sqlAliasedBehavior: "sql", sqlBehavior: "sql" })
)
);
}
this.config.having = having;
return this;
}
groupBy(...columns) {
if (typeof columns[0] === "function") {
const groupBy = columns[0](
new Proxy(
this.config.fields,
new SelectionProxyHandler({ sqlAliasedBehavior: "alias", sqlBehavior: "sql" })
)
);
this.config.groupBy = Array.isArray(groupBy) ? groupBy : [groupBy];
} else {
this.config.groupBy = columns;
}
return this;
}
orderBy(...columns) {
if (typeof columns[0] === "function") {
const orderBy = columns[0](
new Proxy(
this.config.fields,
new SelectionProxyHandler({ sqlAliasedBehavior: "alias", sqlBehavior: "sql" })
)
);
const orderByArray = Array.isArray(orderBy) ? orderBy : [orderBy];
if (this.config.setOperators.length > 0) {
this.config.setOperators.at(-1).orderBy = orderByArray;
} else {
this.config.orderBy = orderByArray;
}
} else {
const orderByArray = columns;
if (this.config.setOperators.length > 0) {
this.config.setOperators.at(-1).orderBy = orderByArray;
} else {
this.config.orderBy = orderByArray;
}
}
return this;
}
/**
* Adds a `limit` clause to the query.
*
* Calling this method will set the maximum number of rows that will be returned by this query.
*
* See docs: {@link https://orm.drizzle.team/docs/select#limit--offset}
*
* @param limit the `limit` clause.
*
* @example
*
* ```ts
* // Get the first 10 people from this query.
* await db.select().from(people).limit(10);
* ```
*/
limit(limit) {
if (this.config.setOperators.length > 0) {
this.config.setOperators.at(-1).limit = limit;
} else {
this.config.limit = limit;
}
return this;
}
/**
* Adds an `offset` clause to the query.
*
* Calling this method will skip a number of rows when returning results from this query.
*
* See docs: {@link https://orm.drizzle.team/docs/select#limit--offset}
*
* @param offset the `offset` clause.
*
* @example
*
* ```ts
* // Get the 10th-20th people from this query.
* await db.select().from(people).offset(10).limit(10);
* ```
*/
offset(offset) {
if (this.config.setOperators.length > 0) {
this.config.setOperators.at(-1).offset = offset;
} else {
this.config.offset = offset;
}
return this;
}
/** @internal */
getSQL() {
return this.dialect.buildSelectQuery(this.config);
}
toSQL() {
const { typings: _typings, ...rest } = this.dialect.sqlToQuery(this.getSQL());
return rest;
}
as(alias) {
return new Proxy(
new Subquery(this.getSQL(), this.config.fields, alias),
new SelectionProxyHandler({ alias, sqlAliasedBehavior: "alias", sqlBehavior: "error" })
);
}
/** @internal */
getSelectedFields() {
return new Proxy(
this.config.fields,
new SelectionProxyHandler({ alias: this.tableName, sqlAliasedBehavior: "alias", sqlBehavior: "error" })
);
}
$dynamic() {
return this;
}
}
class SQLiteSelectBase extends SQLiteSelectQueryBuilderBase {
static [entityKind] = "SQLiteSelect";
/** @internal */
_prepare(isOneTimeQuery = true) {
if (!this.session) {
throw new Error("Cannot execute a query on a query builder. Please use a database instance instead.");
}
const fieldsList = orderSelectedFields(this.config.fields);
const query = this.session[isOneTimeQuery ? "prepareOneTimeQuery" : "prepareQuery"](
this.dialect.sqlToQuery(this.getSQL()),
fieldsList,
"all",
true
);
query.joinsNotNullableMap = this.joinsNotNullableMap;
return query;
}
prepare() {
return this._prepare(false);
}
run = (placeholderValues) => {
return this._prepare().run(placeholderValues);
};
all = (placeholderValues) => {
return this._prepare().all(placeholderValues);
};
get = (placeholderValues) => {
return this._prepare().get(placeholderValues);
};
values = (placeholderValues) => {
return this._prepare().values(placeholderValues);
};
async execute() {
return this.all();
}
}
applyMixins(SQLiteSelectBase, [QueryPromise]);
function createSetOperator(type, isAll) {
return (leftSelect, rightSelect, ...restSelects) => {
const setOperators = [rightSelect, ...restSelects].map((select) => ({
type,
isAll,
rightSelect: select
}));
for (const setOperator of setOperators) {
if (!haveSameKeys(leftSelect.getSelectedFields(), setOperator.rightSelect.getSelectedFields())) {
throw new Error(
"Set operator error (union / intersect / except): selected fields are not the same or are in a different order"
);
}
}
return leftSelect.addSetOperators(setOperators);
};
}
const getSQLiteSetOperators = () => ({
union,
unionAll,
intersect,
except
});
const union = createSetOperator("union", false);
const unionAll = createSetOperator("union", true);
const intersect = createSetOperator("intersect", false);
const except = createSetOperator("except", false);
export {
SQLiteSelectBase,
SQLiteSelectBuilder,
SQLiteSelectQueryBuilderBase,
except,
intersect,
union,
unionAll
};
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