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DredgePos/Core/GenericEntities.module.fs
Josh 207edf0de3 Migration system added.
Install scripts for database schema and dummy data too.
2022-02-26 22:23:30 +10:00

80 lines
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Forth

module Entity
open Dapper
open Dapper.FSharp
open DredgeFramework
open Pluralize.NET.Core
open FSharp.Reflection
let GetDatabaseTable<'x> =
let typeName = typeof<'x>.Name
Pluralizer().Pluralize typeName
let Create (record: 'x)=
let tableName = GetDatabaseTable<'x>
insert {
table tableName
value record
excludeColumn "id"
}
|> Database.InsertOutput
|> first
let inline Update (record: ^x) =
let tableName = GetDatabaseTable<'x>
let id = ((^x) : (member id : int) record)
update {
table tableName
set record
where (eq "id" id)
excludeColumn "id"
}
|> Database.Update
let GetAll<'x> =
let tableName = GetDatabaseTable<'x>
select {
table tableName
}
|> Database.Select<'x>
let GetAllByColumn<'x> (column: string) (value: obj) =
let tableName = GetDatabaseTable<'x>
select {
table tableName
where (eq column value)
} |> Database.Select<'x>
let GetFirstByColumn<'x> (column: string) (value: obj) = (GetAllByColumn<'x> column value) |> first
let GetAllInVenue<'x> = GetAllByColumn<'x> "venue_id" (getCurrentVenue ())
let GetById<'x> (id: int) = GetAllByColumn<'x> "id" id |> first
let inline GetRelated<'x, .. > (entity: ^y) =
let columnName = typeof<'x>.Name + "_id"
let primaryKeyValue = typeof<'y>.GetProperty(columnName).GetValue(entity) :?> int
GetById<'x> primaryKeyValue
let inline GetAllRelated<'x, .. > (entity: ^y) =
let id = typeof<'y>.GetProperty("id").GetValue(entity) :?> int
let columnName = typeof<'y>.Name + "_id"
GetAllByColumn<'x> columnName id
let DeleteById<'x> id =
let typeName = typeof<'x>.Name
let tableName = Pluralizer().Pluralize typeName
let entity = GetById<'x> id
delete {
table tableName
where (eq "id" id)
} |> Database.Delete |> ignore
entity
let inline Delete< ^x when ^x: (member id: int) > (entity: ^x) =
typeof<'x>.GetProperty("id").GetValue(entity) :?> int
|> DeleteById<'x>