package caqti

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Unified interface to relational database libraries

Install 

dune-project
 Dependency

github.com Edit opam file Versions (21)

Authors

  1. P
    Petter A. Urkedal <paurkedal@gmail.com>
  2. N
    Nathan Rebours <nathan@cryptosense.com>
  3. B
    Basile Clément

Maintainers

  1. P
    Petter A. Urkedal <paurkedal@gmail.com>

Sources

caqti-v2.0.1.tbz
sha256=7eb57225c521fe25395653d960b1c381bb2b2ccae47bc2a827bb16611988da8b
sha512=eeafaf495b08fb8620ddee1711b8f9fa2ca0c79fb450a905c8d071806b7046d665e1e2ac0e7d3c7ca1258455decbf184e689e9ecb2453ec9d952b864f9dd14f4

doc/caqti.platform/Caqti_platform/Request_utils/index.html

Module Caqti_platform.Request_utilsSource

Internal request-related utilities.

Queries

Sourceval linear_param_length : ?env:(string -> Caqti_query.t) -> Caqti_query.t -> int

linear_param_length templ is the number of linear parameters expected by a query represented by templ.

Sourceval linear_param_order : ?env:(string -> Caqti_query.t) -> Caqti_query.t -> int list list * (int * string) list

linear_param_order templ describes the parameter bindings expected for templ after linearizing parameters and lifting quoted strings out of the query:

  • The first is a list where item number i is a list of linear parameter positions to which to bind the ith incoming parameter.
  • The second is a list of pairs where the first component is the position of the linear parameter taking the place of a quoted string, and the second component is the quoted string to bind to this parameter.

All positions are zero-based.

Sourceval linear_query_string : ?env:(string -> Caqti_query.t) -> Caqti_query.t -> string

linear_query_string templ is templ where "?" is substituted for parameters and quoted strings.

Parameter Encoding and Row Decoding

Sourceval raise_encode_missing : uri:Uri.t -> field_type:'a Caqti_type.Field.t -> unit -> 'counit
Sourceval raise_encode_rejected : uri:Uri.t -> typ:'a Caqti_type.t -> Caqti_error.msg -> 'counit
Sourceval raise_encode_failed : uri:Uri.t -> typ:'a Caqti_type.t -> Caqti_error.msg -> 'counit
Sourceval raise_decode_missing : uri:Uri.t -> field_type:'a Caqti_type.Field.t -> unit -> 'counit
Sourceval raise_decode_rejected : uri:Uri.t -> typ:'a Caqti_type.t -> Caqti_error.msg -> 'counit
Sourceval raise_response_failed : uri:Uri.t -> query:string -> Caqti_error.msg -> 'counit
Sourceval raise_response_rejected : uri:Uri.t -> query:string -> Caqti_error.msg -> 'counit
Sourcetype 'a field_encoder = {
  1. write_value : 'b. uri:Uri.t -> 'b Caqti_type.Field.t -> 'b -> 'a -> 'a;
  2. write_null : 'b. uri:Uri.t -> 'b Caqti_type.Field.t -> 'a -> 'a;
} constraint 'e = [> `Encode_rejected of Caqti_error.coding_error ]
Sourceval encode_param : uri:Uri.t -> 'a field_encoder -> 'b Caqti_type.t -> 'b -> 'a -> 'a
Sourcetype 'a field_decoder = {
  1. read_value : 'b. uri:Uri.t -> 'b Caqti_type.Field.t -> 'a -> 'b * 'a;
  2. skip_null : int -> 'a -> 'a option;
} constraint 'e = [> `Decode_rejected of Caqti_error.coding_error ]
Sourceval decode_row : uri:Uri.t -> 'a field_decoder -> 'b Caqti_type.t -> 'a -> 'b * 'a