trait RowParser[+A] extends (Row) ⇒ SqlResult[A]

Self Type
RowParser[A]
Source
SqlParser.scala
Linear Supertypes
(Row) ⇒ SqlResult[A], AnyRef, Any
Known Subclasses
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Inherited
  1. RowParser
  2. Function1
  3. AnyRef
  4. Any
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Visibility
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Abstract Value Members

  1. abstract def apply(v1: Row): SqlResult[A]
    Definition Classes
    Function1

Concrete Value Members

  1. def *: ResultSetParser[List[A]]

    Returns possibly empty list parsed from result.

    Returns possibly empty list parsed from result.

    val price = 125
    SQL"SELECT name FROM item WHERE price < \$price".as(scalar[String].*)
  2. def +: ResultSetParser[List[A]]

    Returns non empty list parse from result, or raise error if there is no result.

    Returns non empty list parse from result, or raise error if there is no result.

    import anorm.SQL
    import anorm.SqlParser.str
    
    val parser = str("title") ~ str("descr")
    SQL("SELECT title, descr FROM pages").as(parser.+) // at least 1 page
  3. def <~[B](p: RowParser[B]): RowParser[A]

    Combines this current parser with the one given as argument p, if and only if the current parser can first successfully parse a row, without keeping the values of the parser p.

    Combines this current parser with the one given as argument p, if and only if the current parser can first successfully parse a row, without keeping the values of the parser p.

    import anorm.{ SQL, SqlParser }, SqlParser.{ int, str }
    
    val Int = SQL("SELECT * FROM test").
      as((int("id") <~ str("val")).single)
    // row has to have an int column 'id' and a string 'val' one,
    // keeping only 'id' in result
  4. def >>[B](f: (A) ⇒ RowParser[B]): RowParser[B]

    Alias for flatMap

  5. def ?: RowParser[Option[A]]

    Returns a row parser for optional column, that will turn missing or null column as None.

  6. def andThen[A](g: (SqlResult[A]) ⇒ A): (Row) ⇒ A
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  7. def collect[B](otherwise: String)(f: PartialFunction[A, B]): RowParser[B]

    Returns parser which collects information from already parsed row data using f.

    Returns parser which collects information from already parsed row data using f.

    otherwise

    Message returned as error if nothing can be collected using f.

    f

    Collecting function

  8. def compose[A](g: (A) ⇒ Row): (A) ⇒ SqlResult[A]
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  9. def flatMap[B](k: (A) ⇒ RowParser[B]): RowParser[B]
  10. def map[B](f: (A) ⇒ B): RowParser[B]

    Returns a parser that will apply given function f to the result of this first parser.

    Returns a parser that will apply given function f to the result of this first parser. If the current parser is not successful, the new one will return encountered Error.

    f

    Function applied on the successful parser result

    import anorm.{ RowParser, SQL, SqlParser }
    
    val parser: RowParser[Int] = SqlParser.str("col").map(_.length)
    // Prepares a parser that first get 'col' string value,
    // and then returns the length of that
  11. def single: ResultSetParser[A]

    Returns a result set parser expecting exactly one row to parse.

    Returns a result set parser expecting exactly one row to parse.

    val b: Boolean = SQL("SELECT flag FROM Test WHERE id = :id").
      on("id" -> 1).as(scalar[Boolean].single)
    See also

    #singleOpt

  12. def singleOpt: ResultSetParser[Option[A]]

    Returns a result set parser for none or one parsed row.

    Returns a result set parser for none or one parsed row.

    val name: Option[String] =
      SQL("SELECT name FROM Country WHERE lang = :lang")
      .on("lang" -> "notFound").as(scalar[String].singleOpt)
  13. def toString(): String
    Definition Classes
    Function1 → AnyRef → Any
  14. def |[B >: A](p: RowParser[B]): RowParser[B]
  15. def ~[B](p: RowParser[B]): RowParser[~[A, B]]

    Combines this parser on the left of the parser p given as argument.

    Combines this parser on the left of the parser p given as argument.

    p

    Parser on the right

    val populations: List[String ~ Int] =
      SQL("SELECT * FROM Country").as((str("name") ~ int("population")).*)
  16. def ~>[B](p: RowParser[B]): RowParser[B]

    Combines this current parser with the one given as argument p, if and only if the current parser can first/on left side successfully parse a row, without keeping these values in parsed result.

    Combines this current parser with the one given as argument p, if and only if the current parser can first/on left side successfully parse a row, without keeping these values in parsed result.

    import anorm.{ SQL, SqlParser }, SqlParser.{ int, str }
    
    val String = SQL("SELECT * FROM test").
      as((int("id") ~> str("val")).single)
    // row has to have an int column 'id' and a string 'val' one,
    // keeping only 'val' in result