types

Documentation

Overview

Package types Type Expression Operators

Index

• func Convert[E expression.AnyExpression, T expression.IntStrExpression](input E, to T, options ConvertOptions) typeOperator
• func IsNumber[T expression.AnyExpression](e T) typeOperator
• func ToBool[T expression.AnyExpression](e T) typeOperator
• func ToDate[T expression.AnyExpression](e T) typeOperator
• func ToDecimal[T expression.AnyExpression](e T) typeOperator
• func ToDouble[T expression.AnyExpression](e T) typeOperator
• func ToInt[T expression.AnyExpression](e T) typeOperator
• func ToLong[T expression.AnyExpression](e T) typeOperator
• func ToObjectId[T expression.AnyExpression](e T) typeOperator
• func Type[T expression.AnyExpression](e T) typeOperator
• type ConvertOptions

Functions

func Convert

func Convert[E expression.AnyExpression, T expression.IntStrExpression](input E, to T, options ConvertOptions) typeOperator

Convert Converts a value to a specified type. $convert has the following syntax:

{
  $convert:
     {
        input: <expression>, to: <type expression>, onError: <expression>, //
        Optional. onNull: <expression> // Optional.
     }
}

func IsNumber

func IsNumber[T expression.AnyExpression](e T) typeOperator

IsNumber New in version 4.4. $isNumber checks if the specified expression resolves to one of the following numeric BSON types: # Integer # Decimal # Double # Long $isNumber returns: true if the expression resolves to a number. false if the expression resolves to any other BSON type, null, or a missing field. $isNumber has the following operator expression syntax: { $isNumber: <expression> }

func ToBool

func ToBool[T expression.AnyExpression](e T) typeOperator

ToBool Converts a value to a boolean. $toBool has the following syntax:

{
  $toBool: <expression>
}

The $toBool takes any valid expression. The $toBool is a shorthand for the following $convert expression: { $convert: { input: <expression>, to: "bool" } }

func ToDate

func ToDate[T expression.AnyExpression](e T) typeOperator

ToDate Converts a value to a date. If the value cannot be converted to a date, $toDate errors. If the value is null or missing, $toDate returns null. $toDate has the following syntax:

{
  $toDate: <expression>
}

The $toDate takes any valid expression. The $toDate is a shorthand for the following $convert expression: { $convert: { input: <expression>, to: "date" } }

func ToDecimal

func ToDecimal[T expression.AnyExpression](e T) typeOperator

ToDecimal Converts a value to a decimal. If the value cannot be converted to a decimal, $toDecimal errors. If the value is null or missing, $toDecimal returns null. $toDecimal has the following syntax:

{
  $toDecimal: <expression>
}

The $toDecimal takes any valid expression. The $toDecimal is a shorthand for the following $convert expression: { $convert: { input: <expression>, to: "decimal" } }

func ToDouble

func ToDouble[T expression.AnyExpression](e T) typeOperator

ToDouble Converts a value to a double. If the value cannot be converted to an double, $toDouble errors. If the value is null or missing, $toDouble returns null. $toDouble has the following syntax:

{
  $toDouble: <expression>
}

The $toDouble takes any valid expression. The $toDouble is a shorthand for the following $convert expression: { $convert: { input: <expression>, to: "double" } }

func ToInt

func ToInt[T expression.AnyExpression](e T) typeOperator

ToInt Converts a value to an integer. If the value cannot be converted to an integer, $toInt errors. If the value is null or missing, $toInt returns null. $toInt has the following syntax:

{
  $toInt: <expression>
}

The $toInt takes any valid expression. The $toInt is a shorthand for the following $convert expression: { $convert: { input: <expression>, to: "int" } }

func ToLong

func ToLong[T expression.AnyExpression](e T) typeOperator

ToLong Converts a value to a long. If the value cannot be converted to a long, $toLong errors. If the value is null or missing, $toLong returns null. $toLong has the following syntax:

{
  $toLong: <expression>
}

The $toLong takes any valid expression. The $toLong is a shorthand for the following $convert expression: { $convert: { input: <expression>, to: "long" } }

func ToObjectId

func ToObjectId[T expression.AnyExpression](e T) typeOperator

ToObjectId Converts a value to an ObjectId(). If the value cannot be converted to an ObjectId, $toObjectId errors. If the value is null or missing, $toObjectId returns null. $toObjectId has the following syntax:

{
  $toObjectId: <expression>
}

The $toObjectId takes any valid expression. The $toObjectId is a shorthand for the following $convert expression: { $convert: { input: <expression>, to: "objectId" } }

func Type

func Type[T expression.AnyExpression](e T) typeOperator

Type Returns a string that specifies the BSON type of the argument. $type has the following operator expression syntax: { $type: <expression> } The argument can be any valid expression.

Types

type ConvertOptions

type ConvertOptions struct {
	// contains filtered or unexported fields
}