SQLCollection

public protocol SQLCollection

Experimental

SQLCollection is the protocol for types that can be checked for inclusion.

  • Experimental

    Returns an SQL string that represents the collection.

    When the arguments parameter is nil, any value must be written down as a literal in the returned SQL:

    var arguments: StatementArguments? = nil
let collection = SQLExpressionsArray([1,2,3])
collection.collectionSQL(&arguments)  // "1,2,3"

    When the arguments parameter is not nil, then values may be replaced by ? or colon-prefixed tokens, and fed into arguments.

    var arguments = StatementArguments()
let collection = SQLExpressionsArray([1,2,3])
collection.collectionSQL(&arguments)  // "?,?,?"
arguments                             // [1,2,3]

    Declaration

    Swift

    func collectionSQL(_ arguments: inout StatementArguments?) -> String
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  • contains(_:) Default implementation

    Experimental

    Returns an expression that check whether the collection contains the expression.

    Default Implementation

    Experimental

    Returns a SQLExpressionContains which applies the IN SQL operator.

    Declaration

    Swift

    func contains(_ value: SQLExpressible) -> SQLExpression
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