drizzle-orm
Version:
Drizzle ORM package for SQL databases
837 lines • 31.9 kB
JavaScript
import { aliasedTable, aliasedTableColumn, mapColumnsInAliasedSQLToAlias, mapColumnsInSQLToAlias } from "../alias.js";
import { CasingCache } from "../casing.js";
import { Column } from "../column.js";
import { entityKind, is } from "../entity.js";
import { DrizzleError } from "../errors.js";
import {
getOperators,
getOrderByOperators,
Many,
normalizeRelation,
One
} from "../relations.js";
import { and, eq } from "../sql/expressions/index.js";
import { Param, SQL, sql, View } from "../sql/sql.js";
import { Subquery } from "../subquery.js";
import { getTableName, getTableUniqueName, Table } from "../table.js";
import { orderSelectedFields } from "../utils.js";
import { ViewBaseConfig } from "../view-common.js";
import { MySqlColumn } from "./columns/common.js";
import { MySqlTable } from "./table.js";
import { MySqlViewBase } from "./view-base.js";
class MySqlDialect {
static [entityKind] = "MySqlDialect";
/** @internal */
casing;
constructor(config) {
this.casing = new CasingCache(config?.casing);
}
async migrate(migrations, session, config) {
const migrationsTable = config.migrationsTable ?? "__drizzle_migrations";
const migrationTableCreate = sql`
create table if not exists ${sql.identifier(migrationsTable)} (
id serial primary key,
hash text not null,
created_at bigint
)
`;
await session.execute(migrationTableCreate);
const dbMigrations = await session.all(
sql`select id, hash, created_at from ${sql.identifier(migrationsTable)} order by created_at desc limit 1`
);
const lastDbMigration = dbMigrations[0];
await session.transaction(async (tx) => {
for (const migration of migrations) {
if (!lastDbMigration || Number(lastDbMigration.created_at) < migration.folderMillis) {
for (const stmt of migration.sql) {
await tx.execute(sql.raw(stmt));
}
await tx.execute(
sql`insert into ${sql.identifier(migrationsTable)} (\`hash\`, \`created_at\`) values(${migration.hash}, ${migration.folderMillis})`
);
}
}
});
}
escapeName(name) {
return `\`${name}\``;
}
escapeParam(_num) {
return `?`;
}
escapeString(str) {
return `'${str.replace(/'/g, "''")}'`;
}
buildWithCTE(queries) {
if (!queries?.length) return void 0;
const withSqlChunks = [sql`with `];
for (const [i, w] of queries.entries()) {
withSqlChunks.push(sql`${sql.identifier(w._.alias)} as (${w._.sql})`);
if (i < queries.length - 1) {
withSqlChunks.push(sql`, `);
}
}
withSqlChunks.push(sql` `);
return sql.join(withSqlChunks);
}
buildDeleteQuery({ table, where, returning, withList, limit, orderBy }) {
const withSql = this.buildWithCTE(withList);
const returningSql = returning ? sql` returning ${this.buildSelection(returning, { isSingleTable: true })}` : void 0;
const whereSql = where ? sql` where ${where}` : void 0;
const orderBySql = this.buildOrderBy(orderBy);
const limitSql = this.buildLimit(limit);
return sql`${withSql}delete from ${table}${whereSql}${orderBySql}${limitSql}${returningSql}`;
}
buildUpdateSet(table, set) {
const tableColumns = table[Table.Symbol.Columns];
const columnNames = Object.keys(tableColumns).filter(
(colName) => set[colName] !== void 0 || tableColumns[colName]?.onUpdateFn !== void 0
);
const setSize = columnNames.length;
return sql.join(columnNames.flatMap((colName, i) => {
const col = tableColumns[colName];
const value = set[colName] ?? sql.param(col.onUpdateFn(), col);
const res = sql`${sql.identifier(this.casing.getColumnCasing(col))} = ${value}`;
if (i < setSize - 1) {
return [res, sql.raw(", ")];
}
return [res];
}));
}
buildUpdateQuery({ table, set, where, returning, withList, limit, orderBy }) {
const withSql = this.buildWithCTE(withList);
const setSql = this.buildUpdateSet(table, set);
const returningSql = returning ? sql` returning ${this.buildSelection(returning, { isSingleTable: true })}` : void 0;
const whereSql = where ? sql` where ${where}` : void 0;
const orderBySql = this.buildOrderBy(orderBy);
const limitSql = this.buildLimit(limit);
return sql`${withSql}update ${table} set ${setSql}${whereSql}${orderBySql}${limitSql}${returningSql}`;
}
/**
* Builds selection SQL with provided fields/expressions
*
* Examples:
*
* `select <selection> from`
*
* `insert ... returning <selection>`
*
* If `isSingleTable` is true, then columns won't be prefixed with table name
*/
buildSelection(fields, { isSingleTable = false } = {}) {
const columnsLen = fields.length;
const chunks = fields.flatMap(({ field }, i) => {
const chunk = [];
if (is(field, SQL.Aliased) && field.isSelectionField) {
chunk.push(sql.identifier(field.fieldAlias));
} else if (is(field, SQL.Aliased) || is(field, SQL)) {
const query = is(field, SQL.Aliased) ? field.sql : field;
if (isSingleTable) {
chunk.push(
new SQL(
query.queryChunks.map((c) => {
if (is(c, MySqlColumn)) {
return sql.identifier(this.casing.getColumnCasing(c));
}
return c;
})
)
);
} else {
chunk.push(query);
}
if (is(field, SQL.Aliased)) {
chunk.push(sql` as ${sql.identifier(field.fieldAlias)}`);
}
} else if (is(field, Column)) {
if (isSingleTable) {
chunk.push(sql.identifier(this.casing.getColumnCasing(field)));
} else {
chunk.push(field);
}
}
if (i < columnsLen - 1) {
chunk.push(sql`, `);
}
return chunk;
});
return sql.join(chunks);
}
buildLimit(limit) {
return typeof limit === "object" || typeof limit === "number" && limit >= 0 ? sql` limit ${limit}` : void 0;
}
buildOrderBy(orderBy) {
return orderBy && orderBy.length > 0 ? sql` order by ${sql.join(orderBy, sql`, `)}` : void 0;
}
buildIndex({
indexes,
indexFor
}) {
return indexes && indexes.length > 0 ? sql` ${sql.raw(indexFor)} INDEX (${sql.raw(indexes.join(`, `))})` : void 0;
}
buildSelectQuery({
withList,
fields,
fieldsFlat,
where,
having,
table,
joins,
orderBy,
groupBy,
limit,
offset,
lockingClause,
distinct,
setOperators,
useIndex,
forceIndex,
ignoreIndex
}) {
const fieldsList = fieldsFlat ?? orderSelectedFields(fields);
for (const f of fieldsList) {
if (is(f.field, Column) && getTableName(f.field.table) !== (is(table, Subquery) ? table._.alias : is(table, MySqlViewBase) ? table[ViewBaseConfig].name : is(table, SQL) ? void 0 : getTableName(table)) && !((table2) => joins?.some(
({ alias }) => alias === (table2[Table.Symbol.IsAlias] ? getTableName(table2) : table2[Table.Symbol.BaseName])
))(f.field.table)) {
const tableName = getTableName(f.field.table);
throw new Error(
`Your "${f.path.join("->")}" field references a column "${tableName}"."${f.field.name}", but the table "${tableName}" is not part of the query! Did you forget to join it?`
);
}
}
const isSingleTable = !joins || joins.length === 0;
const withSql = this.buildWithCTE(withList);
const distinctSql = distinct ? sql` distinct` : void 0;
const selection = this.buildSelection(fieldsList, { isSingleTable });
const tableSql = (() => {
if (is(table, Table) && table[Table.Symbol.IsAlias]) {
return sql`${sql`${sql.identifier(table[Table.Symbol.Schema] ?? "")}.`.if(table[Table.Symbol.Schema])}${sql.identifier(table[Table.Symbol.OriginalName])} ${sql.identifier(table[Table.Symbol.Name])}`;
}
return table;
})();
const joinsArray = [];
if (joins) {
for (const [index, joinMeta] of joins.entries()) {
if (index === 0) {
joinsArray.push(sql` `);
}
const table2 = joinMeta.table;
const lateralSql = joinMeta.lateral ? sql` lateral` : void 0;
const onSql = joinMeta.on ? sql` on ${joinMeta.on}` : void 0;
if (is(table2, MySqlTable)) {
const tableName = table2[MySqlTable.Symbol.Name];
const tableSchema = table2[MySqlTable.Symbol.Schema];
const origTableName = table2[MySqlTable.Symbol.OriginalName];
const alias = tableName === origTableName ? void 0 : joinMeta.alias;
const useIndexSql2 = this.buildIndex({ indexes: joinMeta.useIndex, indexFor: "USE" });
const forceIndexSql2 = this.buildIndex({ indexes: joinMeta.forceIndex, indexFor: "FORCE" });
const ignoreIndexSql2 = this.buildIndex({ indexes: joinMeta.ignoreIndex, indexFor: "IGNORE" });
joinsArray.push(
sql`${sql.raw(joinMeta.joinType)} join${lateralSql} ${tableSchema ? sql`${sql.identifier(tableSchema)}.` : void 0}${sql.identifier(origTableName)}${useIndexSql2}${forceIndexSql2}${ignoreIndexSql2}${alias && sql` ${sql.identifier(alias)}`}${onSql}`
);
} else if (is(table2, View)) {
const viewName = table2[ViewBaseConfig].name;
const viewSchema = table2[ViewBaseConfig].schema;
const origViewName = table2[ViewBaseConfig].originalName;
const alias = viewName === origViewName ? void 0 : joinMeta.alias;
joinsArray.push(
sql`${sql.raw(joinMeta.joinType)} join${lateralSql} ${viewSchema ? sql`${sql.identifier(viewSchema)}.` : void 0}${sql.identifier(origViewName)}${alias && sql` ${sql.identifier(alias)}`}${onSql}`
);
} else {
joinsArray.push(
sql`${sql.raw(joinMeta.joinType)} join${lateralSql} ${table2}${onSql}`
);
}
if (index < joins.length - 1) {
joinsArray.push(sql` `);
}
}
}
const joinsSql = sql.join(joinsArray);
const whereSql = where ? sql` where ${where}` : void 0;
const havingSql = having ? sql` having ${having}` : void 0;
const orderBySql = this.buildOrderBy(orderBy);
const groupBySql = groupBy && groupBy.length > 0 ? sql` group by ${sql.join(groupBy, sql`, `)}` : void 0;
const limitSql = this.buildLimit(limit);
const offsetSql = offset ? sql` offset ${offset}` : void 0;
const useIndexSql = this.buildIndex({ indexes: useIndex, indexFor: "USE" });
const forceIndexSql = this.buildIndex({ indexes: forceIndex, indexFor: "FORCE" });
const ignoreIndexSql = this.buildIndex({ indexes: ignoreIndex, indexFor: "IGNORE" });
let lockingClausesSql;
if (lockingClause) {
const { config, strength } = lockingClause;
lockingClausesSql = sql` for ${sql.raw(strength)}`;
if (config.noWait) {
lockingClausesSql.append(sql` nowait`);
} else if (config.skipLocked) {
lockingClausesSql.append(sql` skip locked`);
}
}
const finalQuery = sql`${withSql}select${distinctSql} ${selection} from ${tableSql}${useIndexSql}${forceIndexSql}${ignoreIndexSql}${joinsSql}${whereSql}${groupBySql}${havingSql}${orderBySql}${limitSql}${offsetSql}${lockingClausesSql}`;
if (setOperators.length > 0) {
return this.buildSetOperations(finalQuery, setOperators);
}
return finalQuery;
}
buildSetOperations(leftSelect, setOperators) {
const [setOperator, ...rest] = setOperators;
if (!setOperator) {
throw new Error("Cannot pass undefined values to any set operator");
}
if (rest.length === 0) {
return this.buildSetOperationQuery({ leftSelect, setOperator });
}
return this.buildSetOperations(
this.buildSetOperationQuery({ leftSelect, setOperator }),
rest
);
}
buildSetOperationQuery({
leftSelect,
setOperator: { type, isAll, rightSelect, limit, orderBy, offset }
}) {
const leftChunk = sql`(${leftSelect.getSQL()}) `;
const rightChunk = sql`(${rightSelect.getSQL()})`;
let orderBySql;
if (orderBy && orderBy.length > 0) {
const orderByValues = [];
for (const orderByUnit of orderBy) {
if (is(orderByUnit, MySqlColumn)) {
orderByValues.push(sql.identifier(this.casing.getColumnCasing(orderByUnit)));
} else if (is(orderByUnit, SQL)) {
for (let i = 0; i < orderByUnit.queryChunks.length; i++) {
const chunk = orderByUnit.queryChunks[i];
if (is(chunk, MySqlColumn)) {
orderByUnit.queryChunks[i] = sql.identifier(this.casing.getColumnCasing(chunk));
}
}
orderByValues.push(sql`${orderByUnit}`);
} else {
orderByValues.push(sql`${orderByUnit}`);
}
}
orderBySql = sql` order by ${sql.join(orderByValues, sql`, `)} `;
}
const limitSql = typeof limit === "object" || typeof limit === "number" && limit >= 0 ? sql` limit ${limit}` : void 0;
const operatorChunk = sql.raw(`${type} ${isAll ? "all " : ""}`);
const offsetSql = offset ? sql` offset ${offset}` : void 0;
return sql`${leftChunk}${operatorChunk}${rightChunk}${orderBySql}${limitSql}${offsetSql}`;
}
buildInsertQuery({ table, values: valuesOrSelect, ignore, onConflict, select }) {
const valuesSqlList = [];
const columns = table[Table.Symbol.Columns];
const colEntries = Object.entries(columns).filter(
([_, col]) => !col.shouldDisableInsert()
);
const insertOrder = colEntries.map(([, column]) => sql.identifier(this.casing.getColumnCasing(column)));
const generatedIdsResponse = [];
if (select) {
const select2 = valuesOrSelect;
if (is(select2, SQL)) {
valuesSqlList.push(select2);
} else {
valuesSqlList.push(select2.getSQL());
}
} else {
const values = valuesOrSelect;
valuesSqlList.push(sql.raw("values "));
for (const [valueIndex, value] of values.entries()) {
const generatedIds = {};
const valueList = [];
for (const [fieldName, col] of colEntries) {
const colValue = value[fieldName];
if (colValue === void 0 || is(colValue, Param) && colValue.value === void 0) {
if (col.defaultFn !== void 0) {
const defaultFnResult = col.defaultFn();
generatedIds[fieldName] = defaultFnResult;
const defaultValue = is(defaultFnResult, SQL) ? defaultFnResult : sql.param(defaultFnResult, col);
valueList.push(defaultValue);
} else if (!col.default && col.onUpdateFn !== void 0) {
const onUpdateFnResult = col.onUpdateFn();
const newValue = is(onUpdateFnResult, SQL) ? onUpdateFnResult : sql.param(onUpdateFnResult, col);
valueList.push(newValue);
} else {
valueList.push(sql`default`);
}
} else {
if (col.defaultFn && is(colValue, Param)) {
generatedIds[fieldName] = colValue.value;
}
valueList.push(colValue);
}
}
generatedIdsResponse.push(generatedIds);
valuesSqlList.push(valueList);
if (valueIndex < values.length - 1) {
valuesSqlList.push(sql`, `);
}
}
}
const valuesSql = sql.join(valuesSqlList);
const ignoreSql = ignore ? sql` ignore` : void 0;
const onConflictSql = onConflict ? sql` on duplicate key ${onConflict}` : void 0;
return {
sql: sql`insert${ignoreSql} into ${table} ${insertOrder} ${valuesSql}${onConflictSql}`,
generatedIds: generatedIdsResponse
};
}
sqlToQuery(sql2, invokeSource) {
return sql2.toQuery({
casing: this.casing,
escapeName: this.escapeName,
escapeParam: this.escapeParam,
escapeString: this.escapeString,
invokeSource
});
}
buildRelationalQuery({
fullSchema,
schema,
tableNamesMap,
table,
tableConfig,
queryConfig: config,
tableAlias,
nestedQueryRelation,
joinOn
}) {
let selection = [];
let limit, offset, orderBy, where;
const joins = [];
if (config === true) {
const selectionEntries = Object.entries(tableConfig.columns);
selection = selectionEntries.map(([key, value]) => ({
dbKey: value.name,
tsKey: key,
field: aliasedTableColumn(value, tableAlias),
relationTableTsKey: void 0,
isJson: false,
selection: []
}));
} else {
const aliasedColumns = Object.fromEntries(
Object.entries(tableConfig.columns).map(([key, value]) => [key, aliasedTableColumn(value, tableAlias)])
);
if (config.where) {
const whereSql = typeof config.where === "function" ? config.where(aliasedColumns, getOperators()) : config.where;
where = whereSql && mapColumnsInSQLToAlias(whereSql, tableAlias);
}
const fieldsSelection = [];
let selectedColumns = [];
if (config.columns) {
let isIncludeMode = false;
for (const [field, value] of Object.entries(config.columns)) {
if (value === void 0) {
continue;
}
if (field in tableConfig.columns) {
if (!isIncludeMode && value === true) {
isIncludeMode = true;
}
selectedColumns.push(field);
}
}
if (selectedColumns.length > 0) {
selectedColumns = isIncludeMode ? selectedColumns.filter((c) => config.columns?.[c] === true) : Object.keys(tableConfig.columns).filter((key) => !selectedColumns.includes(key));
}
} else {
selectedColumns = Object.keys(tableConfig.columns);
}
for (const field of selectedColumns) {
const column = tableConfig.columns[field];
fieldsSelection.push({ tsKey: field, value: column });
}
let selectedRelations = [];
if (config.with) {
selectedRelations = Object.entries(config.with).filter((entry) => !!entry[1]).map(([tsKey, queryConfig]) => ({ tsKey, queryConfig, relation: tableConfig.relations[tsKey] }));
}
let extras;
if (config.extras) {
extras = typeof config.extras === "function" ? config.extras(aliasedColumns, { sql }) : config.extras;
for (const [tsKey, value] of Object.entries(extras)) {
fieldsSelection.push({
tsKey,
value: mapColumnsInAliasedSQLToAlias(value, tableAlias)
});
}
}
for (const { tsKey, value } of fieldsSelection) {
selection.push({
dbKey: is(value, SQL.Aliased) ? value.fieldAlias : tableConfig.columns[tsKey].name,
tsKey,
field: is(value, Column) ? aliasedTableColumn(value, tableAlias) : value,
relationTableTsKey: void 0,
isJson: false,
selection: []
});
}
let orderByOrig = typeof config.orderBy === "function" ? config.orderBy(aliasedColumns, getOrderByOperators()) : config.orderBy ?? [];
if (!Array.isArray(orderByOrig)) {
orderByOrig = [orderByOrig];
}
orderBy = orderByOrig.map((orderByValue) => {
if (is(orderByValue, Column)) {
return aliasedTableColumn(orderByValue, tableAlias);
}
return mapColumnsInSQLToAlias(orderByValue, tableAlias);
});
limit = config.limit;
offset = config.offset;
for (const {
tsKey: selectedRelationTsKey,
queryConfig: selectedRelationConfigValue,
relation
} of selectedRelations) {
const normalizedRelation = normalizeRelation(schema, tableNamesMap, relation);
const relationTableName = getTableUniqueName(relation.referencedTable);
const relationTableTsName = tableNamesMap[relationTableName];
const relationTableAlias = `${tableAlias}_${selectedRelationTsKey}`;
const joinOn2 = and(
...normalizedRelation.fields.map(
(field2, i) => eq(
aliasedTableColumn(normalizedRelation.references[i], relationTableAlias),
aliasedTableColumn(field2, tableAlias)
)
)
);
const builtRelation = this.buildRelationalQuery({
fullSchema,
schema,
tableNamesMap,
table: fullSchema[relationTableTsName],
tableConfig: schema[relationTableTsName],
queryConfig: is(relation, One) ? selectedRelationConfigValue === true ? { limit: 1 } : { ...selectedRelationConfigValue, limit: 1 } : selectedRelationConfigValue,
tableAlias: relationTableAlias,
joinOn: joinOn2,
nestedQueryRelation: relation
});
const field = sql`${sql.identifier(relationTableAlias)}.${sql.identifier("data")}`.as(selectedRelationTsKey);
joins.push({
on: sql`true`,
table: new Subquery(builtRelation.sql, {}, relationTableAlias),
alias: relationTableAlias,
joinType: "left",
lateral: true
});
selection.push({
dbKey: selectedRelationTsKey,
tsKey: selectedRelationTsKey,
field,
relationTableTsKey: relationTableTsName,
isJson: true,
selection: builtRelation.selection
});
}
}
if (selection.length === 0) {
throw new DrizzleError({ message: `No fields selected for table "${tableConfig.tsName}" ("${tableAlias}")` });
}
let result;
where = and(joinOn, where);
if (nestedQueryRelation) {
let field = sql`json_array(${sql.join(
selection.map(
({ field: field2, tsKey, isJson }) => isJson ? sql`${sql.identifier(`${tableAlias}_${tsKey}`)}.${sql.identifier("data")}` : is(field2, SQL.Aliased) ? field2.sql : field2
),
sql`, `
)})`;
if (is(nestedQueryRelation, Many)) {
field = sql`coalesce(json_arrayagg(${field}), json_array())`;
}
const nestedSelection = [{
dbKey: "data",
tsKey: "data",
field: field.as("data"),
isJson: true,
relationTableTsKey: tableConfig.tsName,
selection
}];
const needsSubquery = limit !== void 0 || offset !== void 0 || (orderBy?.length ?? 0) > 0;
if (needsSubquery) {
result = this.buildSelectQuery({
table: aliasedTable(table, tableAlias),
fields: {},
fieldsFlat: [
{
path: [],
field: sql.raw("*")
},
...((orderBy?.length ?? 0) > 0 ? [{
path: [],
field: sql`row_number() over (order by ${sql.join(orderBy, sql`, `)})`
}] : [])
],
where,
limit,
offset,
setOperators: []
});
where = void 0;
limit = void 0;
offset = void 0;
orderBy = void 0;
} else {
result = aliasedTable(table, tableAlias);
}
result = this.buildSelectQuery({
table: is(result, MySqlTable) ? result : new Subquery(result, {}, tableAlias),
fields: {},
fieldsFlat: nestedSelection.map(({ field: field2 }) => ({
path: [],
field: is(field2, Column) ? aliasedTableColumn(field2, tableAlias) : field2
})),
joins,
where,
limit,
offset,
orderBy,
setOperators: []
});
} else {
result = this.buildSelectQuery({
table: aliasedTable(table, tableAlias),
fields: {},
fieldsFlat: selection.map(({ field }) => ({
path: [],
field: is(field, Column) ? aliasedTableColumn(field, tableAlias) : field
})),
joins,
where,
limit,
offset,
orderBy,
setOperators: []
});
}
return {
tableTsKey: tableConfig.tsName,
sql: result,
selection
};
}
buildRelationalQueryWithoutLateralSubqueries({
fullSchema,
schema,
tableNamesMap,
table,
tableConfig,
queryConfig: config,
tableAlias,
nestedQueryRelation,
joinOn
}) {
let selection = [];
let limit, offset, orderBy = [], where;
if (config === true) {
const selectionEntries = Object.entries(tableConfig.columns);
selection = selectionEntries.map(([key, value]) => ({
dbKey: value.name,
tsKey: key,
field: aliasedTableColumn(value, tableAlias),
relationTableTsKey: void 0,
isJson: false,
selection: []
}));
} else {
const aliasedColumns = Object.fromEntries(
Object.entries(tableConfig.columns).map(([key, value]) => [key, aliasedTableColumn(value, tableAlias)])
);
if (config.where) {
const whereSql = typeof config.where === "function" ? config.where(aliasedColumns, getOperators()) : config.where;
where = whereSql && mapColumnsInSQLToAlias(whereSql, tableAlias);
}
const fieldsSelection = [];
let selectedColumns = [];
if (config.columns) {
let isIncludeMode = false;
for (const [field, value] of Object.entries(config.columns)) {
if (value === void 0) {
continue;
}
if (field in tableConfig.columns) {
if (!isIncludeMode && value === true) {
isIncludeMode = true;
}
selectedColumns.push(field);
}
}
if (selectedColumns.length > 0) {
selectedColumns = isIncludeMode ? selectedColumns.filter((c) => config.columns?.[c] === true) : Object.keys(tableConfig.columns).filter((key) => !selectedColumns.includes(key));
}
} else {
selectedColumns = Object.keys(tableConfig.columns);
}
for (const field of selectedColumns) {
const column = tableConfig.columns[field];
fieldsSelection.push({ tsKey: field, value: column });
}
let selectedRelations = [];
if (config.with) {
selectedRelations = Object.entries(config.with).filter((entry) => !!entry[1]).map(([tsKey, queryConfig]) => ({ tsKey, queryConfig, relation: tableConfig.relations[tsKey] }));
}
let extras;
if (config.extras) {
extras = typeof config.extras === "function" ? config.extras(aliasedColumns, { sql }) : config.extras;
for (const [tsKey, value] of Object.entries(extras)) {
fieldsSelection.push({
tsKey,
value: mapColumnsInAliasedSQLToAlias(value, tableAlias)
});
}
}
for (const { tsKey, value } of fieldsSelection) {
selection.push({
dbKey: is(value, SQL.Aliased) ? value.fieldAlias : tableConfig.columns[tsKey].name,
tsKey,
field: is(value, Column) ? aliasedTableColumn(value, tableAlias) : value,
relationTableTsKey: void 0,
isJson: false,
selection: []
});
}
let orderByOrig = typeof config.orderBy === "function" ? config.orderBy(aliasedColumns, getOrderByOperators()) : config.orderBy ?? [];
if (!Array.isArray(orderByOrig)) {
orderByOrig = [orderByOrig];
}
orderBy = orderByOrig.map((orderByValue) => {
if (is(orderByValue, Column)) {
return aliasedTableColumn(orderByValue, tableAlias);
}
return mapColumnsInSQLToAlias(orderByValue, tableAlias);
});
limit = config.limit;
offset = config.offset;
for (const {
tsKey: selectedRelationTsKey,
queryConfig: selectedRelationConfigValue,
relation
} of selectedRelations) {
const normalizedRelation = normalizeRelation(schema, tableNamesMap, relation);
const relationTableName = getTableUniqueName(relation.referencedTable);
const relationTableTsName = tableNamesMap[relationTableName];
const relationTableAlias = `${tableAlias}_${selectedRelationTsKey}`;
const joinOn2 = and(
...normalizedRelation.fields.map(
(field2, i) => eq(
aliasedTableColumn(normalizedRelation.references[i], relationTableAlias),
aliasedTableColumn(field2, tableAlias)
)
)
);
const builtRelation = this.buildRelationalQueryWithoutLateralSubqueries({
fullSchema,
schema,
tableNamesMap,
table: fullSchema[relationTableTsName],
tableConfig: schema[relationTableTsName],
queryConfig: is(relation, One) ? selectedRelationConfigValue === true ? { limit: 1 } : { ...selectedRelationConfigValue, limit: 1 } : selectedRelationConfigValue,
tableAlias: relationTableAlias,
joinOn: joinOn2,
nestedQueryRelation: relation
});
let fieldSql = sql`(${builtRelation.sql})`;
if (is(relation, Many)) {
fieldSql = sql`coalesce(${fieldSql}, json_array())`;
}
const field = fieldSql.as(selectedRelationTsKey);
selection.push({
dbKey: selectedRelationTsKey,
tsKey: selectedRelationTsKey,
field,
relationTableTsKey: relationTableTsName,
isJson: true,
selection: builtRelation.selection
});
}
}
if (selection.length === 0) {
throw new DrizzleError({
message: `No fields selected for table "${tableConfig.tsName}" ("${tableAlias}"). You need to have at least one item in "columns", "with" or "extras". If you need to select all columns, omit the "columns" key or set it to undefined.`
});
}
let result;
where = and(joinOn, where);
if (nestedQueryRelation) {
let field = sql`json_array(${sql.join(
selection.map(
({ field: field2 }) => is(field2, MySqlColumn) ? sql.identifier(this.casing.getColumnCasing(field2)) : is(field2, SQL.Aliased) ? field2.sql : field2
),
sql`, `
)})`;
if (is(nestedQueryRelation, Many)) {
field = sql`json_arrayagg(${field})`;
}
const nestedSelection = [{
dbKey: "data",
tsKey: "data",
field,
isJson: true,
relationTableTsKey: tableConfig.tsName,
selection
}];
const needsSubquery = limit !== void 0 || offset !== void 0 || orderBy.length > 0;
if (needsSubquery) {
result = this.buildSelectQuery({
table: aliasedTable(table, tableAlias),
fields: {},
fieldsFlat: [
{
path: [],
field: sql.raw("*")
},
...(orderBy.length > 0 ? [{
path: [],
field: sql`row_number() over (order by ${sql.join(orderBy, sql`, `)})`
}] : [])
],
where,
limit,
offset,
setOperators: []
});
where = void 0;
limit = void 0;
offset = void 0;
orderBy = void 0;
} else {
result = aliasedTable(table, tableAlias);
}
result = this.buildSelectQuery({
table: is(result, MySqlTable) ? result : new Subquery(result, {}, tableAlias),
fields: {},
fieldsFlat: nestedSelection.map(({ field: field2 }) => ({
path: [],
field: is(field2, Column) ? aliasedTableColumn(field2, tableAlias) : field2
})),
where,
limit,
offset,
orderBy,
setOperators: []
});
} else {
result = this.buildSelectQuery({
table: aliasedTable(table, tableAlias),
fields: {},
fieldsFlat: selection.map(({ field }) => ({
path: [],
field: is(field, Column) ? aliasedTableColumn(field, tableAlias) : field
})),
where,
limit,
offset,
orderBy,
setOperators: []
});
}
return {
tableTsKey: tableConfig.tsName,
sql: result,
selection
};
}
}
export {
MySqlDialect
};
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