QueryTranslatorUtilities
Namespace: FSharp.QueryProvider
Nested types and modules
| Type | Description |
| Context | Context to be passed down when translating expressions. |
| DBType<'t> | |
| GetColumnName | Signature for getting a column name |
| GetDBType<'t> | Signarture for getting a DBType |
| GetTableName | Signature for getting a table name |
| TypeSource | Wrap different sources of type. |
| Module | Description |
| List |
Functions and values
| Function or value | Description |
createNull columnIndex dbType
Signature: columnIndex:int -> dbType:DBType<'b> -> string list * PreparedParameter<'b> list * ConstructionInfo list
Type parameters: 'b |
Create a DbNull parameter for a type. |
createParameter columnIndex value dbType
Signature: columnIndex:'b -> value:'c -> dbType:'d -> PreparedParameter<'d>
Type parameters: 'b, 'c, 'd |
Create a prepared parameter |
getLambda m
Signature: m:MethodCallExpression -> LambdaExpression
|
Unwrap a method call expression and get its lambda argument. |
getLocalValue e
Signature: e:Expression -> obj option
|
Take an expression for either a funciton or a member access chain and get the value. |
getMethod name ml
Signature: name:string -> ml:MethodCallExpression list -> MethodCallExpression option * MethodCallExpression list
|
Gets a method by name from a list |
getMethods names ml
Signature: names:string list -> ml:MethodCallExpression list -> MethodCallExpression list * MethodCallExpression list
|
Gets all methods with a particular name |
getOperationsAndQueryable e
Signature: e:MethodCallExpression -> (IQueryable * MethodCallExpression list) option
|
Get all operations in a LINQ chain and the queryable they are operating on. |
invoke m
Signature: m:MethodCallExpression -> obj
|
shorthand for invoking a MethodCallExpression |
splitResults source
Signature: source:('a list * 'b list * 'c list) list -> 'a list * 'b list * 'c list
Type parameters: 'a, 'b, 'c |
Take a list<'a list * 'b list * 'c list> and concat a, b, and c no themseleves, producing a 'a list 'b list 'c list |
unionExactlyOneCaseOneField t
Signature: t:Type -> PropertyInfo
|
Assert that a union case has exactly one field, then return its Reflection.PropertyInfo |
unwrapType t
Signature: t:Type -> Type
|
Gets the underlying type for fsharp types |
unwrapValue value
Signature: value:obj -> obj
|
Get the actual value of an object. Unwraps options and unions |
valueToQueryAndParam (...)
Signature: columnIndex:int -> dbType:DBType<'c> -> value:obj -> string list * PreparedParameter<'c> list * ConstructionInfo list
Type parameters: 'c |
Create query and parametter |
Active patterns
| Active pattern | Description |
( |SingleSameSelect|_| ) l
Signature: l:LambdaExpression -> ParameterExpression option
|
Matches a lambda for |
