Codec

Forget this value is a Codec and treat it as a Decoder.

Forget this value is a Codec and treat it as an Encoder.

Contramap inputs from, and map decoded results to a new type B or an error, yielding a Codec[B].

Contramap inputs from, and map outputs to, a new type B, yielding a Codec[B].

Lift this Codec into Option, where None is mapped to and from a vector of NULL.

Codec is semigroupal: a pair of codecs make a codec for a pair.

Returns a string representation of the object.

The default representation is platform dependent.

Shorthand for product. Note: consider using a *: b *: c instead of a ~ b ~ c.

Adapt this Codec from twiddle-list type A to isomorphic case-class type B.

Contramap inputs from a new type B, yielding an Encoder[B].

Map decoded results to a new type B or an error, yielding a Decoder[B].

Encode a value of type A, yielding a list of Postgres text-formatted strings, lifted to Option to handle NULL values. Encoding failures raise unrecoverable errors.

An equivalent decoder that filters results, failing with a generic error message when the filter condition is not met. For a custom error message use emap.

Derive an encoder for the specified list. This is equivalent to list(as.length) but the resulting encoder can only encode the exact list that it was passed. Prefer this overload when possible because it lessens the possibility of attempting to encode a list of the wrong length.

Derive an encoder for a list of size n that expands to a comma-separated list of placeholders.

Map decoded results to a new type B, yielding a Decoder[B].

Oids of types, or mismatches.

Decoder is semigroupal: a pair of decoders make a decoder for a pair.

Encoder is semigroupal: a pair of encoders make a encoder for a pair.

Given an initial parameter index, yield a hunk of sql containing placeholders, and a new index.

Derive an equivalent encoder for a row type; i.e., its placeholders will be surrounded by parens.

Shorthand for product.

Shorthand for product.

Adapt this Encoder from twiddle-list type A to isomorphic case-class type B.

Adapt this Decoder from twiddle-list type A to isomorphic case-class type B.