Safe Haskell	None
Language	Haskell2010

Hasura.Backends.DataConnector.Plan

Synopsis

data QueryPlan = QueryPlan {
- _qpRequest :: QueryRequest
- _qpResponseReshaper :: forall m. MonadError QErr m => QueryResponse -> m Encoding
}
data FieldsAndAggregates = FieldsAndAggregates {
- _faaFields :: HashMap FieldName Field
- _faaAggregates :: HashMap FieldName Aggregate
}
newtype FieldPrefix = FieldPrefix (Maybe FieldName)
noPrefix :: FieldPrefix
prefixWith :: FieldName -> FieldPrefix
applyPrefix :: FieldPrefix -> FieldName -> FieldName
renderQuery :: QueryRequest -> Text
mkPlan :: forall m. MonadError QErr m => SessionVariables -> SourceConfig -> QueryDB 'DataConnector Void (UnpreparedValue 'DataConnector) -> m QueryPlan
queryHasRelations :: QueryRequest -> Bool
data Cardinality
- = Single
- | Many
reshapeResponseToQueryShape :: MonadError QErr m => QueryDB 'DataConnector Void (UnpreparedValue 'DataConnector) -> QueryResponse -> m Encoding
reshapeSimpleSelectRows :: MonadError QErr m => Cardinality -> AnnFieldsG 'DataConnector Void (UnpreparedValue 'DataConnector) -> QueryResponse -> m Encoding
reshapeTableAggregateFields :: MonadError QErr m => TableAggregateFieldsG 'DataConnector Void (UnpreparedValue 'DataConnector) -> QueryResponse -> m Encoding
reshapeAggregateFields :: MonadError QErr m => FieldPrefix -> AggregateFields 'DataConnector -> KeyMap Value -> m Encoding
reshapeAnnFields :: MonadError QErr m => FieldPrefix -> AnnFieldsG 'DataConnector Void (UnpreparedValue 'DataConnector) -> KeyMap FieldValue -> m Encoding
encodeAssocListAsObject :: [(Text, Encoding)] -> Encoding
reshapeField :: MonadError QErr m => AnnFieldG 'DataConnector Void (UnpreparedValue 'DataConnector) -> m FieldValue -> m Encoding
reshapeAnnRelationSelect :: MonadError QErr m => (Fields (fieldType (UnpreparedValue 'DataConnector)) -> QueryResponse -> m Encoding) -> AnnRelationSelectG 'DataConnector (AnnSelectG 'DataConnector fieldType (UnpreparedValue 'DataConnector)) -> FieldValue -> m Encoding

Documentation

data QueryPlan Source #

Constructors

QueryPlan
Fields _qpRequest :: QueryRequest _qpResponseReshaper :: forall m. MonadError QErr m => QueryResponse -> m Encoding

data FieldsAndAggregates Source #

Constructors

FieldsAndAggregates
Fields _faaFields :: HashMap FieldName Field _faaAggregates :: HashMap FieldName Aggregate

newtype FieldPrefix Source #

Constructors

FieldPrefix (Maybe FieldName)

noPrefix :: FieldPrefix Source #

prefixWith :: FieldName -> FieldPrefix Source #

applyPrefix :: FieldPrefix -> FieldName -> FieldName Source #

renderQuery :: QueryRequest -> Text Source #

Extract the Q from a Plan and render it as Text.

NOTE: This is for logging and debug purposes only.

mkPlan :: forall m. MonadError QErr m => SessionVariables -> SourceConfig -> QueryDB 'DataConnector Void (UnpreparedValue 'DataConnector) -> m QueryPlan Source #

Map a 'QueryDB DataConnector term into a Plan

queryHasRelations :: QueryRequest -> Bool Source #

Validate if a Q contains any relationships.

data Cardinality Source #

Constructors

Single
Many

reshapeResponseToQueryShape :: MonadError QErr m => QueryDB 'DataConnector Void (UnpreparedValue 'DataConnector) -> QueryResponse -> m Encoding Source #

reshapeSimpleSelectRows :: MonadError QErr m => Cardinality -> AnnFieldsG 'DataConnector Void (UnpreparedValue 'DataConnector) -> QueryResponse -> m Encoding Source #

reshapeTableAggregateFields :: MonadError QErr m => TableAggregateFieldsG 'DataConnector Void (UnpreparedValue 'DataConnector) -> QueryResponse -> m Encoding Source #

reshapeAggregateFields :: MonadError QErr m => FieldPrefix -> AggregateFields 'DataConnector -> KeyMap Value -> m Encoding Source #

reshapeAnnFields :: MonadError QErr m => FieldPrefix -> AnnFieldsG 'DataConnector Void (UnpreparedValue 'DataConnector) -> KeyMap FieldValue -> m Encoding Source #

encodeAssocListAsObject :: [(Text, Encoding)] -> Encoding Source #

reshapeField :: MonadError QErr m => AnnFieldG 'DataConnector Void (UnpreparedValue 'DataConnector) -> m FieldValue -> m Encoding Source #

reshapeAnnRelationSelect :: MonadError QErr m => (Fields (fieldType (UnpreparedValue 'DataConnector)) -> QueryResponse -> m Encoding) -> AnnRelationSelectG 'DataConnector (AnnSelectG 'DataConnector fieldType (UnpreparedValue 'DataConnector)) -> FieldValue -> m Encoding Source #