package caqti
Unified interface to relational database libraries
Install
Dune Dependency
Authors
Maintainers
Sources
caqti-v1.8.0.tbz
sha256=2630233f335f910290e24b318ac7f6e712b3109fb55581b2b8c324127a9a4b12
sha512=9ce23cbc02b9d6c856a8db0713dbb1aa393aa43bc1d565121420636f7f6fa1ed64c7269e98cfeb92b5e9c8e23e42e2e8e1705b5fe978abd3c3f0cc3259d32b98
doc/caqti/Caqti_driver_lib/index.html
Module Caqti_driver_libSource
Internal: Library for Drivers
linear_param_length templ is the number of linear parameters expected by a query represented by templ.
Source
val linear_param_order :
?env:(string -> Caqti_query.t) ->
Caqti_query.t ->
int list list * (int * string) listlinear_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
iis a list of linear parameter positions to which to bind theith 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.
linear_query_string templ is templ where "?" is substituted for parameters and quoted strings.
Source
type ('a, 'e) field_encoder = {write_value : 'b. uri:Uri.t -> 'b Caqti_type.Field.t -> 'b -> 'a -> ('a, 'e) result;write_null : 'b. uri:Uri.t -> 'b Caqti_type.Field.t -> 'a -> ('a, 'e) result;
} constraint 'e = [> `Encode_rejected of Caqti_error.coding_error ]Source
val encode_param :
uri:Uri.t ->
('a, 'e) field_encoder ->
'b Caqti_type.t ->
'b ->
'a ->
('a, 'e) resultSource
type ('a, 'e) field_decoder = {read_value : 'b. uri:Uri.t -> 'b Caqti_type.Field.t -> 'a -> ('b * 'a, 'e) result;skip_null : int -> 'a -> 'a option;
} constraint 'e = [> `Decode_rejected of Caqti_error.coding_error ]Source
val decode_row :
uri:Uri.t ->
('a, 'e) field_decoder ->
'b Caqti_type.t ->
'a ->
('b * 'a, 'e) result