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InsertQueryBuilder.ts
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InsertQueryBuilder.ts
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import { QueryBuilder } from "./QueryBuilder"
import { ObjectLiteral } from "../common/ObjectLiteral"
import { EntityTarget } from "../common/EntityTarget"
import { QueryDeepPartialEntity } from "./QueryPartialEntity"
import { MysqlDriver } from "../driver/mysql/MysqlDriver"
import { InsertResult } from "./result/InsertResult"
import { ReturningStatementNotSupportedError } from "../error/ReturningStatementNotSupportedError"
import { InsertValuesMissingError } from "../error/InsertValuesMissingError"
import { ColumnMetadata } from "../metadata/ColumnMetadata"
import { ReturningResultsEntityUpdator } from "./ReturningResultsEntityUpdator"
import { BroadcasterResult } from "../subscriber/BroadcasterResult"
import { TypeORMError } from "../error"
import { v4 as uuidv4 } from "uuid"
import { InsertOrUpdateOptions } from "./InsertOrUpdateOptions"
import { SqlServerDriver } from "../driver/sqlserver/SqlServerDriver"
import { AuroraMysqlDriver } from "../driver/aurora-mysql/AuroraMysqlDriver"
import { DriverUtils } from "../driver/DriverUtils"
import { ObjectUtils } from "../util/ObjectUtils"
import { InstanceChecker } from "../util/InstanceChecker"
/**
* Allows to build complex sql queries in a fashion way and execute those queries.
*/
export class InsertQueryBuilder<Entity> extends QueryBuilder<Entity> {
readonly "@instanceof" = Symbol.for("InsertQueryBuilder")
// -------------------------------------------------------------------------
// Public Implemented Methods
// -------------------------------------------------------------------------
/**
* Gets generated SQL query without parameters being replaced.
*/
getQuery(): string {
let sql = this.createComment()
sql += this.createCteExpression()
sql += this.createInsertExpression()
return sql.trim()
}
/**
* Executes sql generated by query builder and returns raw database results.
*/
async execute(): Promise<InsertResult> {
// console.time(".value sets");
const valueSets: ObjectLiteral[] = this.getValueSets()
// console.timeEnd(".value sets");
// If user passed empty array of entities then we don't need to do
// anything.
//
// Fixes GitHub issues #3111 and #5734. If we were to let this through
// we would run into problems downstream, like subscribers getting
// invoked with the empty array where they expect an entity, and SQL
// queries with an empty VALUES clause.
if (valueSets.length === 0) return new InsertResult()
// console.time("QueryBuilder.execute");
// console.time(".database stuff");
const queryRunner = this.obtainQueryRunner()
let transactionStartedByUs: boolean = false
try {
// start transaction if it was enabled
if (
this.expressionMap.useTransaction === true &&
queryRunner.isTransactionActive === false
) {
await queryRunner.startTransaction()
transactionStartedByUs = true
}
// console.timeEnd(".database stuff");
// call before insertion methods in listeners and subscribers
if (
this.expressionMap.callListeners === true &&
this.expressionMap.mainAlias!.hasMetadata
) {
const broadcastResult = new BroadcasterResult()
valueSets.forEach((valueSet) => {
queryRunner.broadcaster.broadcastBeforeInsertEvent(
broadcastResult,
this.expressionMap.mainAlias!.metadata,
valueSet,
)
})
await broadcastResult.wait()
}
let declareSql: string | null = null
let selectOutputSql: string | null = null
// if update entity mode is enabled we may need extra columns for the returning statement
// console.time(".prepare returning statement");
const returningResultsEntityUpdator =
new ReturningResultsEntityUpdator(
queryRunner,
this.expressionMap,
)
const returningColumns: ColumnMetadata[] = []
if (
Array.isArray(this.expressionMap.returning) &&
this.expressionMap.mainAlias!.hasMetadata
) {
for (const columnPath of this.expressionMap.returning) {
returningColumns.push(
...this.expressionMap.mainAlias!.metadata.findColumnsWithPropertyPath(
columnPath,
),
)
}
}
if (
this.expressionMap.updateEntity === true &&
this.expressionMap.mainAlias!.hasMetadata
) {
if (
!(
valueSets.length > 1 &&
this.connection.driver.options.type === "oracle"
)
) {
this.expressionMap.extraReturningColumns =
this.expressionMap.mainAlias!.metadata.getInsertionReturningColumns()
}
returningColumns.push(
...this.expressionMap.extraReturningColumns.filter(
(c) => !returningColumns.includes(c),
),
)
}
if (
returningColumns.length > 0 &&
this.connection.driver.options.type === "mssql"
) {
declareSql = (
this.connection.driver as SqlServerDriver
).buildTableVariableDeclaration(
"@OutputTable",
returningColumns,
)
selectOutputSql = `SELECT * FROM @OutputTable`
}
// console.timeEnd(".prepare returning statement");
// execute query
// console.time(".getting query and parameters");
const [insertSql, parameters] = this.getQueryAndParameters()
// console.timeEnd(".getting query and parameters");
// console.time(".query execution by database");
const statements = [declareSql, insertSql, selectOutputSql]
const sql = statements.filter((s) => s != null).join(";\n\n")
const queryResult = await queryRunner.query(sql, parameters, true)
const insertResult = InsertResult.from(queryResult)
// console.timeEnd(".query execution by database");
// load returning results and set them to the entity if entity updation is enabled
if (
this.expressionMap.updateEntity === true &&
this.expressionMap.mainAlias!.hasMetadata
) {
// console.time(".updating entity");
await returningResultsEntityUpdator.insert(
insertResult,
valueSets,
)
// console.timeEnd(".updating entity");
}
// call after insertion methods in listeners and subscribers
if (
this.expressionMap.callListeners === true &&
this.expressionMap.mainAlias!.hasMetadata
) {
const broadcastResult = new BroadcasterResult()
valueSets.forEach((valueSet) => {
queryRunner.broadcaster.broadcastAfterInsertEvent(
broadcastResult,
this.expressionMap.mainAlias!.metadata,
valueSet,
)
})
await broadcastResult.wait()
}
// close transaction if we started it
// console.time(".commit");
if (transactionStartedByUs) {
await queryRunner.commitTransaction()
}
// console.timeEnd(".commit");
return insertResult
} catch (error) {
// rollback transaction if we started it
if (transactionStartedByUs) {
try {
await queryRunner.rollbackTransaction()
} catch (rollbackError) {}
}
throw error
} finally {
// console.time(".releasing connection");
if (queryRunner !== this.queryRunner) {
// means we created our own query runner
await queryRunner.release()
}
// console.timeEnd(".releasing connection");
// console.timeEnd("QueryBuilder.execute");
}
}
// -------------------------------------------------------------------------
// Public Methods
// -------------------------------------------------------------------------
/**
* Specifies INTO which entity's table insertion will be executed.
*/
into<T>(
entityTarget: EntityTarget<T>,
columns?: string[],
): InsertQueryBuilder<T> {
entityTarget = InstanceChecker.isEntitySchema(entityTarget)
? entityTarget.options.name
: entityTarget
const mainAlias = this.createFromAlias(entityTarget)
this.expressionMap.setMainAlias(mainAlias)
this.expressionMap.insertColumns = columns || []
return this as any as InsertQueryBuilder<T>
}
/**
* Values needs to be inserted into table.
*/
values(
values:
| QueryDeepPartialEntity<Entity>
| QueryDeepPartialEntity<Entity>[],
): this {
this.expressionMap.valuesSet = values
return this
}
/**
* Optional returning/output clause.
* This will return given column values.
*/
output(columns: string[]): this
/**
* Optional returning/output clause.
* Returning is a SQL string containing returning statement.
*/
output(output: string): this
/**
* Optional returning/output clause.
*/
output(output: string | string[]): this
/**
* Optional returning/output clause.
*/
output(output: string | string[]): this {
return this.returning(output)
}
/**
* Optional returning/output clause.
* This will return given column values.
*/
returning(columns: string[]): this
/**
* Optional returning/output clause.
* Returning is a SQL string containing returning statement.
*/
returning(returning: string): this
/**
* Optional returning/output clause.
*/
returning(returning: string | string[]): this
/**
* Optional returning/output clause.
*/
returning(returning: string | string[]): this {
// not all databases support returning/output cause
if (!this.connection.driver.isReturningSqlSupported("insert")) {
throw new ReturningStatementNotSupportedError()
}
this.expressionMap.returning = returning
return this
}
/**
* Indicates if entity must be updated after insertion operations.
* This may produce extra query or use RETURNING / OUTPUT statement (depend on database).
* Enabled by default.
*/
updateEntity(enabled: boolean): this {
this.expressionMap.updateEntity = enabled
return this
}
/**
* Adds additional ON CONFLICT statement supported in postgres and cockroach.
*
* @deprecated Use `orIgnore` or `orUpdate`
*/
onConflict(statement: string): this {
this.expressionMap.onConflict = statement
return this
}
/**
* Adds additional ignore statement supported in databases.
*/
orIgnore(statement: string | boolean = true): this {
this.expressionMap.onIgnore = !!statement
return this
}
/**
* @deprecated
*/
orUpdate(statement?: {
columns?: string[]
overwrite?: string[]
conflict_target?: string | string[]
}): this
orUpdate(
overwrite: string[],
conflictTarget?: string | string[],
orUpdateOptions?: InsertOrUpdateOptions,
): this
/**
* Adds additional update statement supported in databases.
*/
orUpdate(
statementOrOverwrite?:
| {
columns?: string[]
overwrite?: string[]
conflict_target?: string | string[]
}
| string[],
conflictTarget?: string | string[],
orUpdateOptions?: InsertOrUpdateOptions,
): this {
if (!Array.isArray(statementOrOverwrite)) {
this.expressionMap.onUpdate = {
conflict: statementOrOverwrite?.conflict_target,
columns: statementOrOverwrite?.columns,
overwrite: statementOrOverwrite?.overwrite,
skipUpdateIfNoValuesChanged:
orUpdateOptions?.skipUpdateIfNoValuesChanged,
}
return this
}
this.expressionMap.onUpdate = {
overwrite: statementOrOverwrite,
conflict: conflictTarget,
skipUpdateIfNoValuesChanged:
orUpdateOptions?.skipUpdateIfNoValuesChanged,
}
return this
}
// -------------------------------------------------------------------------
// Protected Methods
// -------------------------------------------------------------------------
/**
* Creates INSERT express used to perform insert query.
*/
protected createInsertExpression() {
const tableName = this.getTableName(this.getMainTableName())
const valuesExpression = this.createValuesExpression() // its important to get values before returning expression because oracle rely on native parameters and ordering of them is important
const returningExpression =
this.connection.driver.options.type === "oracle" &&
this.getValueSets().length > 1
? null
: this.createReturningExpression("insert") // oracle doesnt support returning with multi-row insert
const columnsExpression = this.createColumnNamesExpression()
let query = "INSERT "
if (
DriverUtils.isMySQLFamily(this.connection.driver) ||
this.connection.driver.options.type === "aurora-mysql"
) {
query += `${this.expressionMap.onIgnore ? " IGNORE " : ""}`
}
query += `INTO ${tableName}`
if (
this.alias !== this.getMainTableName() &&
DriverUtils.isPostgresFamily(this.connection.driver)
) {
query += ` AS "${this.alias}"`
}
// add columns expression
if (columnsExpression) {
query += `(${columnsExpression})`
} else {
if (
!valuesExpression &&
(DriverUtils.isMySQLFamily(this.connection.driver) ||
this.connection.driver.options.type === "aurora-mysql")
)
// special syntax for mysql DEFAULT VALUES insertion
query += "()"
}
// add OUTPUT expression
if (
returningExpression &&
this.connection.driver.options.type === "mssql"
) {
query += ` OUTPUT ${returningExpression}`
}
// add VALUES expression
if (valuesExpression) {
if (
this.connection.driver.options.type === "oracle" &&
this.getValueSets().length > 1
) {
query += ` ${valuesExpression}`
} else {
query += ` VALUES ${valuesExpression}`
}
} else {
if (
DriverUtils.isMySQLFamily(this.connection.driver) ||
this.connection.driver.options.type === "aurora-mysql"
) {
// special syntax for mysql DEFAULT VALUES insertion
query += " VALUES ()"
} else {
query += ` DEFAULT VALUES`
}
}
if (
this.connection.driver.supportedUpsertType ===
"on-conflict-do-update"
) {
if (this.expressionMap.onIgnore) {
query += " ON CONFLICT DO NOTHING "
} else if (this.expressionMap.onConflict) {
query += ` ON CONFLICT ${this.expressionMap.onConflict} `
} else if (this.expressionMap.onUpdate) {
const {
overwrite,
columns,
conflict,
skipUpdateIfNoValuesChanged,
} = this.expressionMap.onUpdate
let conflictTarget = "ON CONFLICT"
if (Array.isArray(conflict)) {
conflictTarget += ` ( ${conflict
.map((column) => this.escape(column))
.join(", ")} )`
} else if (conflict) {
conflictTarget += ` ON CONSTRAINT ${this.escape(conflict)}`
}
if (Array.isArray(overwrite)) {
query += ` ${conflictTarget} DO UPDATE SET `
query += overwrite
?.map(
(column) =>
`${this.escape(
column,
)} = EXCLUDED.${this.escape(column)}`,
)
.join(", ")
query += " "
} else if (columns) {
query += ` ${conflictTarget} DO UPDATE SET `
query += columns
.map((column) => `${this.escape(column)} = :${column}`)
.join(", ")
query += " "
}
if (
Array.isArray(overwrite) &&
skipUpdateIfNoValuesChanged &&
DriverUtils.isPostgresFamily(this.connection.driver)
) {
query += ` WHERE (`
query += overwrite
.map(
(column) =>
`${tableName}.${this.escape(
column,
)} IS DISTINCT FROM EXCLUDED.${this.escape(
column,
)}`,
)
.join(" OR ")
query += ") "
}
}
} else if (
this.connection.driver.supportedUpsertType ===
"on-duplicate-key-update"
) {
if (this.expressionMap.onUpdate) {
const { overwrite, columns } = this.expressionMap.onUpdate
if (Array.isArray(overwrite)) {
query += " ON DUPLICATE KEY UPDATE "
query += overwrite
.map(
(column) =>
`${this.escape(column)} = VALUES(${this.escape(
column,
)})`,
)
.join(", ")
query += " "
} else if (Array.isArray(columns)) {
query += " ON DUPLICATE KEY UPDATE "
query += columns
.map((column) => `${this.escape(column)} = :${column}`)
.join(", ")
query += " "
}
}
} else {
if (this.expressionMap.onUpdate) {
throw new TypeORMError(
`onUpdate is not supported by the current database driver`,
)
}
}
// add RETURNING expression
if (
returningExpression &&
(DriverUtils.isPostgresFamily(this.connection.driver) ||
this.connection.driver.options.type === "oracle" ||
this.connection.driver.options.type === "cockroachdb" ||
DriverUtils.isMySQLFamily(this.connection.driver))
) {
query += ` RETURNING ${returningExpression}`
}
// Inserting a specific value for an auto-increment primary key in mssql requires enabling IDENTITY_INSERT
// IDENTITY_INSERT can only be enabled for tables where there is an IDENTITY column and only if there is a value to be inserted (i.e. supplying DEFAULT is prohibited if IDENTITY_INSERT is enabled)
if (
this.connection.driver.options.type === "mssql" &&
this.expressionMap.mainAlias!.hasMetadata &&
this.expressionMap
.mainAlias!.metadata.columns.filter((column) =>
this.expressionMap.insertColumns.length > 0
? this.expressionMap.insertColumns.indexOf(
column.propertyPath,
) !== -1
: column.isInsert,
)
.some((column) =>
this.isOverridingAutoIncrementBehavior(column),
)
) {
query = `SET IDENTITY_INSERT ${tableName} ON; ${query}; SET IDENTITY_INSERT ${tableName} OFF`
}
return query
}
/**
* Gets list of columns where values must be inserted to.
*/
protected getInsertedColumns(): ColumnMetadata[] {
if (!this.expressionMap.mainAlias!.hasMetadata) return []
return this.expressionMap.mainAlias!.metadata.columns.filter(
(column) => {
// if user specified list of columns he wants to insert to, then we filter only them
if (this.expressionMap.insertColumns.length)
return (
this.expressionMap.insertColumns.indexOf(
column.propertyPath,
) !== -1
)
// skip columns the user doesn't want included by default
if (!column.isInsert) {
return false
}
// if user did not specified such list then return all columns except auto-increment one
// for Oracle we return auto-increment column as well because Oracle does not support DEFAULT VALUES expression
if (
column.isGenerated &&
column.generationStrategy === "increment" &&
!(this.connection.driver.options.type === "oracle") &&
!DriverUtils.isSQLiteFamily(this.connection.driver) &&
!DriverUtils.isMySQLFamily(this.connection.driver) &&
!(this.connection.driver.options.type === "aurora-mysql") &&
!(
this.connection.driver.options.type === "mssql" &&
this.isOverridingAutoIncrementBehavior(column)
)
)
return false
return true
},
)
}
/**
* Creates a columns string where values must be inserted to for INSERT INTO expression.
*/
protected createColumnNamesExpression(): string {
const columns = this.getInsertedColumns()
if (columns.length > 0)
return columns
.map((column) => this.escape(column.databaseName))
.join(", ")
// in the case if there are no insert columns specified and table without metadata used
// we get columns from the inserted value map, in the case if only one inserted map is specified
if (
!this.expressionMap.mainAlias!.hasMetadata &&
!this.expressionMap.insertColumns.length
) {
const valueSets = this.getValueSets()
if (valueSets.length === 1)
return Object.keys(valueSets[0])
.map((columnName) => this.escape(columnName))
.join(", ")
}
// get a table name and all column database names
return this.expressionMap.insertColumns
.map((columnName) => this.escape(columnName))
.join(", ")
}
/**
* Creates list of values needs to be inserted in the VALUES expression.
*/
protected createValuesExpression(): string {
const valueSets = this.getValueSets()
const columns = this.getInsertedColumns()
// if column metadatas are given then apply all necessary operations with values
if (columns.length > 0) {
let expression = ""
valueSets.forEach((valueSet, valueSetIndex) => {
columns.forEach((column, columnIndex) => {
if (columnIndex === 0) {
if (
this.connection.driver.options.type === "oracle" &&
valueSets.length > 1
) {
expression += " SELECT "
} else if (
this.connection.driver.options.type === "sap" &&
valueSets.length > 1
) {
expression += " SELECT "
} else {
expression += "("
}
}
// extract real value from the entity
let value = column.getEntityValue(valueSet)
// if column is relational and value is an object then get real referenced column value from this object
// for example column value is { question: { id: 1 } }, value will be equal to { id: 1 }
// and we extract "1" from this object
/*if (column.referencedColumn && value instanceof Object && !(typeof value === "function")) { // todo: check if we still need it since getEntityValue already has similar code
value = column.referencedColumn.getEntityValue(value);
}*/
if (!(typeof value === "function")) {
// make sure our value is normalized by a driver
value = this.connection.driver.preparePersistentValue(
value,
column,
)
}
// newly inserted entities always have a version equal to 1 (first version)
// also, user-specified version must be empty
if (column.isVersion && value === undefined) {
expression += "1"
// } else if (column.isNestedSetLeft) {
// const tableName = this.connection.driver.escape(column.entityMetadata.tablePath);
// const rightColumnName = this.connection.driver.escape(column.entityMetadata.nestedSetRightColumn!.databaseName);
// const subQuery = `(SELECT c.max + 1 FROM (SELECT MAX(${rightColumnName}) as max from ${tableName}) c)`;
// expression += subQuery;
//
// } else if (column.isNestedSetRight) {
// const tableName = this.connection.driver.escape(column.entityMetadata.tablePath);
// const rightColumnName = this.connection.driver.escape(column.entityMetadata.nestedSetRightColumn!.databaseName);
// const subQuery = `(SELECT c.max + 2 FROM (SELECT MAX(${rightColumnName}) as max from ${tableName}) c)`;
// expression += subQuery;
} else if (column.isDiscriminator) {
expression += this.createParameter(
this.expressionMap.mainAlias!.metadata
.discriminatorValue,
)
// return "1";
// for create and update dates we insert current date
// no, we don't do it because this constant is already in "default" value of the column
// with extended timestamp functionality, like CURRENT_TIMESTAMP(6) for example
// } else if (column.isCreateDate || column.isUpdateDate) {
// return "CURRENT_TIMESTAMP";
// if column is generated uuid and database does not support its generation and custom generated value was not provided by a user - we generate a new uuid value for insertion
} else if (
column.isGenerated &&
column.generationStrategy === "uuid" &&
!this.connection.driver.isUUIDGenerationSupported() &&
value === undefined
) {
value = uuidv4()
expression += this.createParameter(value)
if (
!(
valueSetIndex in
this.expressionMap.locallyGenerated
)
) {
this.expressionMap.locallyGenerated[valueSetIndex] =
{}
}
column.setEntityValue(
this.expressionMap.locallyGenerated[valueSetIndex],
value,
)
// if value for this column was not provided then insert default value
} else if (value === undefined) {
if (
(this.connection.driver.options.type === "oracle" &&
valueSets.length > 1) ||
DriverUtils.isSQLiteFamily(
this.connection.driver,
) ||
this.connection.driver.options.type === "sap"
) {
// unfortunately sqlite does not support DEFAULT expression in INSERT queries
if (
column.default !== undefined &&
column.default !== null
) {
// try to use default defined in the column
expression +=
this.connection.driver.normalizeDefault(
column,
)
} else {
expression += "NULL" // otherwise simply use NULL and pray if column is nullable
}
} else {
expression += "DEFAULT"
}
// support for SQL expressions in queries
} else if (typeof value === "function") {
expression += value()
// just any other regular value
} else {
if (this.connection.driver.options.type === "mssql")
value = (
this.connection.driver as SqlServerDriver
).parametrizeValue(column, value)
// we need to store array values in a special class to make sure parameter replacement will work correctly
// if (value instanceof Array)
// value = new ArrayParameter(value);
const paramName = this.createParameter(value)
if (
(DriverUtils.isMySQLFamily(
this.connection.driver,
) ||
this.connection.driver.options.type ===
"aurora-mysql") &&
this.connection.driver.spatialTypes.indexOf(
column.type,
) !== -1
) {
const useLegacy = (
this.connection.driver as
| MysqlDriver
| AuroraMysqlDriver
).options.legacySpatialSupport
const geomFromText = useLegacy
? "GeomFromText"
: "ST_GeomFromText"
if (column.srid != null) {
expression += `${geomFromText}(${paramName}, ${column.srid})`
} else {
expression += `${geomFromText}(${paramName})`
}
} else if (
DriverUtils.isPostgresFamily(
this.connection.driver,
) &&
this.connection.driver.spatialTypes.indexOf(
column.type,
) !== -1
) {
if (column.srid != null) {
expression += `ST_SetSRID(ST_GeomFromGeoJSON(${paramName}), ${column.srid})::${column.type}`
} else {
expression += `ST_GeomFromGeoJSON(${paramName})::${column.type}`
}
} else if (
this.connection.driver.options.type === "mssql" &&
this.connection.driver.spatialTypes.indexOf(
column.type,
) !== -1
) {
expression +=
column.type +
"::STGeomFromText(" +
paramName +
", " +
(column.srid || "0") +
")"
} else {
expression += paramName
}
}
if (columnIndex === columns.length - 1) {
if (valueSetIndex === valueSets.length - 1) {
if (
this.connection.driver.options.type ===
"oracle" &&
valueSets.length > 1
) {
expression += " FROM DUAL "
} else if (
this.connection.driver.options.type === "sap" &&
valueSets.length > 1
) {
expression += " FROM dummy "
} else {
expression += ")"
}
} else {
if (
this.connection.driver.options.type ===
"oracle" &&
valueSets.length > 1
) {
expression += " FROM DUAL UNION ALL "
} else if (
this.connection.driver.options.type === "sap" &&
valueSets.length > 1
) {
expression += " FROM dummy UNION ALL "
} else {
expression += "), "
}
}
} else {
expression += ", "
}
})
})
if (expression === "()") return ""
return expression
} else {
// for tables without metadata
// get values needs to be inserted
let expression = ""
valueSets.forEach((valueSet, insertionIndex) => {
const columns = Object.keys(valueSet)
columns.forEach((columnName, columnIndex) => {
if (columnIndex === 0) {
expression += "("
}
const value = valueSet[columnName]
// support for SQL expressions in queries
if (typeof value === "function") {
expression += value()
// if value for this column was not provided then insert default value
} else if (value === undefined) {
if (
DriverUtils.isSQLiteFamily(
this.connection.driver,
) ||
this.connection.driver.options.type === "sap"
) {
expression += "NULL"
} else {
expression += "DEFAULT"
}
// just any other regular value
} else {
expression += this.createParameter(value)
}
if (columnIndex === Object.keys(valueSet).length - 1) {
if (insertionIndex === valueSets.length - 1) {
expression += ")"
} else {
expression += "), "
}
} else {
expression += ", "
}
})
})
if (expression === "()") return ""
return expression
}
}
/**
* Gets array of values need to be inserted into the target table.
*/
protected getValueSets(): ObjectLiteral[] {
if (Array.isArray(this.expressionMap.valuesSet))
return this.expressionMap.valuesSet
if (ObjectUtils.isObject(this.expressionMap.valuesSet))
return [this.expressionMap.valuesSet]
throw new InsertValuesMissingError()
}
/**
* Checks if column is an auto-generated primary key, but the current insertion specifies a value for it.
*
* @param column
*/
protected isOverridingAutoIncrementBehavior(
column: ColumnMetadata,
): boolean {
return (
column.isPrimary &&
column.isGenerated &&
column.generationStrategy === "increment" &&
this.getValueSets().some(
(valueSet) =>
column.getEntityValue(valueSet) !== undefined &&
column.getEntityValue(valueSet) !== null,
)
)
}
}