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esqueleto Database.Esqueleto.Legacy Same as insertMany_, but takes an Entity instead of just a record. Useful when migrating data from one entity to another and want to preserve ids. The MongoDB, PostgreSQL, SQLite and MySQL backends insert all records in one database query.
Example usage
With schema-1 and dataset-1,insertUserEntityMany :: MonadIO m => ReaderT SqlBackend m () insertUserEntityMany = insertEntityMany [SnakeEntity, EvaEntity]
The above query when applied on dataset-1, will produce this:+-----+------+-----+ |id |name |age | +-----+------+-----+ |1 |SPJ |40 | +-----+------+-----+ |2 |Simon |41 | +-----+------+-----+ |3 |Snake |38 | +-----+------+-----+ |4 |Eva |38 | +-----+------+-----+
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esqueleto Database.Esqueleto.Legacy Create multiple records in the database and return their Keys. If you don't need the inserted Keys, use insertMany_. The MongoDB and PostgreSQL backends insert all records and retrieve their keys in one database query. The SQLite and MySQL backends use the slow, default implementation of mapM insert.
Example usage
with schema-1 and dataset-1,insertUsers :: MonadIO m => ReaderT SqlBackend m [Key User] insertUsers = insertMany [User "John" 30, User "Nick" 32, User "Jane" 20]
userIds <- insertUsers
The above query when applied on dataset-1, will produce this:+-----+------+-----+ |id |name |age | +-----+------+-----+ |1 |SPJ |40 | +-----+------+-----+ |2 |Simon |41 | +-----+------+-----+ |3 |John |30 | +-----+------+-----+ |4 |Nick |32 | +-----+------+-----+ |5 |Jane |20 | +-----+------+-----+
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esqueleto Database.Esqueleto.Legacy Same as insertMany, but doesn't return any Keys. The MongoDB, PostgreSQL, SQLite and MySQL backends insert all records in one database query.
Example usage
With schema-1 and dataset-1,insertUsers_ :: MonadIO m => ReaderT SqlBackend m () insertUsers_ = insertMany_ [User "John" 30, User "Nick" 32, User "Jane" 20]
The above query when applied on dataset-1, will produce this:+-----+------+-----+ |id |name |age | +-----+------+-----+ |1 |SPJ |40 | +-----+------+-----+ |2 |Simon |41 | +-----+------+-----+ |3 |John |30 | +-----+------+-----+ |4 |Nick |32 | +-----+------+-----+ |5 |Jane |20 | +-----+------+-----+
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esqueleto Database.Esqueleto.Legacy Put many records into db
- insert new records that do not exist (or violate any unique constraints)
- replace existing records (matching any unique constraint)
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esqueleto Database.Esqueleto.Legacy Put many entities into the database. Batch version of repsert for SQL backends. Useful when migrating data from one entity to another and want to preserve ids.
Example usage
With schema-1 and dataset-1,repsertManyUsers :: MonadIO m =>ReaderT SqlBackend m () repsertManyusers = repsertMany [(simonId, User "Philip" 20), (unknownId999, User "Mr. X" 999)]
The above query when applied on dataset-1, will produce this:+-----+----------------+---------+ |id |name |age | +-----+----------------+---------+ |1 |SPJ |40 | +-----+----------------+---------+ |2 |Simon -> Philip |41 -> 20 | +-----+----------------+---------+ |999 |Mr. X |999 | +-----+----------------+---------+
many :: Alternative f => f a -> f [a]flatparse FlatParse.Basic Zero or more.
Examples
>>> many (putStr "la") lalalalalalalalala... * goes on forever *
>>> many Nothing Just []
>>> take 5 <$> many (Just 1) * hangs forever *
Note that this function can be used with Parsers based on Applicatives. In that case many parser will attempt to parse parser zero or more times until it fails.skipAnyAsciiChar :: forall (st :: ZeroBitType) e . ParserT st e ()flatparse FlatParse.Basic Skip any single ASCII character (a single byte). More efficient than skipAnyChar for ASCII-only input.
skipAnyChar :: forall (st :: ZeroBitType) e . ParserT st e ()flatparse FlatParse.Basic Skip any single Unicode character encoded using UTF-8.
skipMany :: forall (st :: ZeroBitType) e a . ParserT st e a -> ParserT st e ()flatparse FlatParse.Basic Skip a parser zero or more times.
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flatparse FlatParse.Basic Run the parser, and handle each possible result.