hasql-auto (empty) → 0.1.0.0
raw patch · 5 files changed
+949/−0 lines, 5 filesdep +aesondep +basedep +bytestring
Dependencies added: aeson, base, bytestring, generics-sop, hasql, iproute, postgresql-binary, scientific, text, time, uuid, vector
Files
- LICENSE +374/−0
- hasql-auto.cabal +78/−0
- lib/Hasql/Auto/Decoders.hs +303/−0
- lib/Hasql/Auto/Encoders.hs +187/−0
- lib/Hasql/Auto/Types.hs +7/−0
+ LICENSE view
@@ -0,0 +1,374 @@+Mozilla Public License Version 2.0+==================================++1. Definitions+--------------++1.1. "Contributor"+ means each individual or legal entity that creates, contributes to+ the creation of, or owns Covered Software.++1.2. "Contributor Version"+ means the combination of the Contributions of others (if any) used+ by a Contributor and that particular Contributor's Contribution.++1.3. "Contribution"+ means Covered Software of a particular Contributor.++1.4. "Covered Software"+ means Source Code Form to which the initial Contributor has attached+ the notice in Exhibit A, the Executable Form of such Source Code+ Form, and Modifications of such Source Code Form, in each case+ including portions thereof.++1.5. "Incompatible With Secondary Licenses"+ means++ (a) that the initial Contributor has attached the notice described+ in Exhibit B to the Covered Software; or++ (b) that the Covered Software was made available under the terms of+ version 1.1 or earlier of the License, but not also under the+ terms of a Secondary License.++1.6. "Executable Form"+ means any form of the work other than Source Code Form.++1.7. "Larger Work"+ means a work that combines Covered Software with other material, in + a separate file or files, that is not Covered Software.++1.8. "License"+ means this document.++1.9. "Licensable"+ means having the right to grant, to the maximum extent possible,+ whether at the time of the initial grant or subsequently, any and+ all of the rights conveyed by this License.++1.10. "Modifications"+ means any of the following:++ (a) any file in Source Code Form that results from an addition to,+ deletion from, or modification of the contents of Covered+ Software; or++ (b) any new file in Source Code Form that contains any Covered+ Software.++1.11. "Patent Claims" of a Contributor+ means any patent claim(s), including without limitation, method,+ process, and apparatus claims, in any patent Licensable by such+ Contributor that would be infringed, but for the grant of the+ License, by the making, using, selling, offering for sale, having+ made, import, or transfer of either its Contributions or its+ Contributor Version.++1.12. "Secondary License"+ means either the GNU General Public License, Version 2.0, the GNU+ Lesser General Public License, Version 2.1, the GNU Affero General+ Public License, Version 3.0, or any later versions of those+ licenses.++1.13. "Source Code Form"+ means the form of the work preferred for making modifications.++1.14. "You" (or "Your")+ means an individual or a legal entity exercising rights under this+ License. For legal entities, "You" includes any entity that+ controls, is controlled by, or is under common control with You. For+ purposes of this definition, "control" means (a) the power, direct+ or indirect, to cause the direction or management of such entity,+ whether by contract or otherwise, or (b) ownership of more than+ fifty percent (50%) of the outstanding shares or beneficial+ ownership of such entity.++2. License Grants and Conditions+--------------------------------++2.1. Grants++Each Contributor hereby grants You a world-wide, royalty-free,+non-exclusive license:++(a) under intellectual property rights (other than patent or trademark)+ Licensable by such Contributor to use, reproduce, make available,+ modify, display, perform, distribute, and otherwise exploit its+ Contributions, either on an unmodified basis, with Modifications, or+ as part of a Larger Work; and++(b) under Patent Claims of such Contributor to make, use, sell, offer+ for sale, have made, import, and otherwise transfer either its+ Contributions or its Contributor Version.++2.2. Effective Date++The licenses granted in Section 2.1 with respect to any Contribution+become effective for each Contribution on the date the Contributor first+distributes such Contribution.++2.3. Limitations on Grant Scope++The licenses granted in this Section 2 are the only rights granted under+this License. No additional rights or licenses will be implied from the+distribution or licensing of Covered Software under this License.+Notwithstanding Section 2.1(b) above, no patent license is granted by a+Contributor:++(a) for any code that a Contributor has removed from Covered Software;+ or++(b) for infringements caused by: (i) Your and any other third party's+ modifications of Covered Software, or (ii) the combination of its+ Contributions with other software (except as part of its Contributor+ Version); or++(c) under Patent Claims infringed by Covered Software in the absence of+ its Contributions.++This License does not grant any rights in the trademarks, service marks,+or logos of any Contributor (except as may be necessary to comply with+the notice requirements in Section 3.4).++2.4. Subsequent Licenses++No Contributor makes additional grants as a result of Your choice to+distribute the Covered Software under a subsequent version of this+License (see Section 10.2) or under the terms of a Secondary License (if+permitted under the terms of Section 3.3).++2.5. Representation++Each Contributor represents that the Contributor believes its+Contributions are its original creation(s) or it has sufficient rights+to grant the rights to its Contributions conveyed by this License.++2.6. Fair Use++This License is not intended to limit any rights You have under+applicable copyright doctrines of fair use, fair dealing, or other+equivalents.++2.7. Conditions++Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted+in Section 2.1.++3. Responsibilities+-------------------++3.1. Distribution of Source Form++All distribution of Covered Software in Source Code Form, including any+Modifications that You create or to which You contribute, must be under+the terms of this License. You must inform recipients that the Source+Code Form of the Covered Software is governed by the terms of this+License, and how they can obtain a copy of this License. You may not+attempt to alter or restrict the recipients' rights in the Source Code+Form.++3.2. Distribution of Executable Form++If You distribute Covered Software in Executable Form then:++(a) such Covered Software must also be made available in Source Code+ Form, as described in Section 3.1, and You must inform recipients of+ the Executable Form how they can obtain a copy of such Source Code+ Form by reasonable means in a timely manner, at a charge no more+ than the cost of distribution to the recipient; and++(b) You may distribute such Executable Form under the terms of this+ License, or sublicense it under different terms, provided that the+ license for the Executable Form does not attempt to limit or alter+ the recipients' rights in the Source Code Form under this License.++3.3. Distribution of a Larger Work++You may create and distribute a Larger Work under terms of Your choice,+provided that You also comply with the requirements of this License for+the Covered Software. If the Larger Work is a combination of Covered+Software with a work governed by one or more Secondary Licenses, and the+Covered Software is not Incompatible With Secondary Licenses, this+License permits You to additionally distribute such Covered Software+under the terms of such Secondary License(s), so that the recipient of+the Larger Work may, at their option, further distribute the Covered+Software under the terms of either this License or such Secondary+License(s).++3.4. Notices++You may not remove or alter the substance of any license notices+(including copyright notices, patent notices, disclaimers of warranty,+or limitations of liability) contained within the Source Code Form of+the Covered Software, except that You may alter any license notices to+the extent required to remedy known factual inaccuracies.++3.5. Application of Additional Terms++You may choose to offer, and to charge a fee for, warranty, support,+indemnity or liability obligations to one or more recipients of Covered+Software. However, You may do so only on Your own behalf, and not on+behalf of any Contributor. You must make it absolutely clear that any+such warranty, support, indemnity, or liability obligation is offered by+You alone, and You hereby agree to indemnify every Contributor for any+liability incurred by such Contributor as a result of warranty, support,+indemnity or liability terms You offer. You may include additional+disclaimers of warranty and limitations of liability specific to any+jurisdiction.++4. Inability to Comply Due to Statute or Regulation+---------------------------------------------------++If it is impossible for You to comply with any of the terms of this+License with respect to some or all of the Covered Software due to+statute, judicial order, or regulation then You must: (a) comply with+the terms of this License to the maximum extent possible; and (b)+describe the limitations and the code they affect. Such description must+be placed in a text file included with all distributions of the Covered+Software under this License. Except to the extent prohibited by statute+or regulation, such description must be sufficiently detailed for a+recipient of ordinary skill to be able to understand it.++5. Termination+--------------++5.1. The rights granted under this License will terminate automatically+if You fail to comply with any of its terms. However, if You become+compliant, then the rights granted under this License from a particular+Contributor are reinstated (a) provisionally, unless and until such+Contributor explicitly and finally terminates Your grants, and (b) on an+ongoing basis, if such Contributor fails to notify You of the+non-compliance by some reasonable means prior to 60 days after You have+come back into compliance. Moreover, Your grants from a particular+Contributor are reinstated on an ongoing basis if such Contributor+notifies You of the non-compliance by some reasonable means, this is the+first time You have received notice of non-compliance with this License+from such Contributor, and You become compliant prior to 30 days after+Your receipt of the notice.++5.2. If You initiate litigation against any entity by asserting a patent+infringement claim (excluding declaratory judgment actions,+counter-claims, and cross-claims) alleging that a Contributor Version+directly or indirectly infringes any patent, then the rights granted to+You by any and all Contributors for the Covered Software under Section+2.1 of this License shall terminate.++5.3. In the event of termination under Sections 5.1 or 5.2 above, all+end user license agreements (excluding distributors and resellers) which+have been validly granted by You or Your distributors under this License+prior to termination shall survive termination.++************************************************************************+* *+* 6. Disclaimer of Warranty *+* ------------------------- *+* *+* Covered Software is provided under this License on an "as is" *+* basis, without warranty of any kind, either expressed, implied, or *+* statutory, including, without limitation, warranties that the *+* Covered Software is free of defects, merchantable, fit for a *+* particular purpose or non-infringing. The entire risk as to the *+* quality and performance of the Covered Software is with You. *+* Should any Covered Software prove defective in any respect, You *+* (not any Contributor) assume the cost of any necessary servicing, *+* repair, or correction. This disclaimer of warranty constitutes an *+* essential part of this License. No use of any Covered Software is *+* authorized under this License except under this disclaimer. *+* *+************************************************************************++************************************************************************+* *+* 7. Limitation of Liability *+* -------------------------- *+* *+* Under no circumstances and under no legal theory, whether tort *+* (including negligence), contract, or otherwise, shall any *+* Contributor, or anyone who distributes Covered Software as *+* permitted above, be liable to You for any direct, indirect, *+* special, incidental, or consequential damages of any character *+* including, without limitation, damages for lost profits, loss of *+* goodwill, work stoppage, computer failure or malfunction, or any *+* and all other commercial damages or losses, even if such party *+* shall have been informed of the possibility of such damages. This *+* limitation of liability shall not apply to liability for death or *+* personal injury resulting from such party's negligence to the *+* extent applicable law prohibits such limitation. Some *+* jurisdictions do not allow the exclusion or limitation of *+* incidental or consequential damages, so this exclusion and *+* limitation may not apply to You. *+* *+************************************************************************++8. Litigation+-------------++Any litigation relating to this License may be brought only in the+courts of a jurisdiction where the defendant maintains its principal+place of business and such litigation shall be governed by laws of that+jurisdiction, without reference to its conflict-of-law provisions.+Nothing in this Section shall prevent a party's ability to bring+cross-claims or counter-claims.++9. Miscellaneous+----------------++This License represents the complete agreement concerning the subject+matter hereof. If any provision of this License is held to be+unenforceable, such provision shall be reformed only to the extent+necessary to make it enforceable. Any law or regulation which provides+that the language of a contract shall be construed against the drafter+shall not be used to construe this License against a Contributor.++10. Versions of the License+---------------------------++10.1. New Versions++Mozilla Foundation is the license steward. Except as provided in Section+10.3, no one other than the license steward has the right to modify or+publish new versions of this License. Each version will be given a+distinguishing version number.++10.2. Effect of New Versions++You may distribute the Covered Software under the terms of the version+of the License under which You originally received the Covered Software,+or under the terms of any subsequent version published by the license+steward.++10.3. Modified Versions++If you create software not governed by this License, and you want to+create a new license for such software, you may create and use a+modified version of this License if you rename the license and remove+any references to the name of the license steward (except to note that+such modified license differs from this License).++10.4. Distributing Source Code Form that is Incompatible With Secondary+Licenses++If You choose to distribute Source Code Form that is Incompatible With+Secondary Licenses under the terms of this version of the License, the+notice described in Exhibit B of this License must be attached.++Exhibit A - Source Code Form License Notice+-------------------------------------------++ This Source Code Form is subject to the terms of the Mozilla Public+ License, v. 2.0. If a copy of the MPL was not distributed with this+ file, You can obtain one at http://mozilla.org/MPL/2.0/.++If it is not possible or desirable to put the notice in a particular+file, then You may include the notice in a location (such as a LICENSE+file in a relevant directory) where a recipient would be likely to look+for such a notice.++You may add additional accurate notices of copyright ownership.++Exhibit B - "Incompatible With Secondary Licenses" Notice+---------------------------------------------------------++ This Source Code Form is "Incompatible With Secondary Licenses", as+ defined by the Mozilla Public License, v. 2.0.+
+ hasql-auto.cabal view
@@ -0,0 +1,78 @@+cabal-version: 2.4+name: hasql-auto+version: 0.1.0.0+license: MPL-2.0+copyright: 2026 Michael Ledger+maintainer: Michael Ledger <mike@quasimal.com>+author: Michael Ledger <mike@quasimal.com>+category: Web+homepage: https://gitlab.com/combobulate.systems/hasql-auto+synopsis: Automatically derived encoders and decoders for Hasql+description:+ .+ Write less boilerplate when decoding or encoding things out of or into Hasql.+ .+ This package provides a superset of functionality of+ [hasql-implicits](https://hackage.haskell.org/package/hasql-implicits) and+ [hasql-generic](https://hackage.haskell.org/package/hasql-generic), by adding+ its own utility functions, types, and instances.+ .+ "Hasql.Auto.Decoders" is substantively derived from [hasql-implicits](https://hackage.haskell.org/package/hasql-implicits).++extra-source-files:+ LICENSE++common shared+ default-extensions:+ AllowAmbiguousTypes+ BangPatterns+ BlockArguments+ DataKinds+ DerivingStrategies+ DerivingVia+ DuplicateRecordFields+ ExplicitForAll+ GADTs+ ImportQualifiedPost+ LambdaCase+ MultiWayIf+ NoStarIsType+ OverloadedRecordDot+ OverloadedStrings+ PartialTypeSignatures+ PatternSynonyms+ PolyKinds+ RequiredTypeArguments+ ScopedTypeVariables+ StrictData+ TemplateHaskell+ TemplateHaskellQuotes+ TypeFamilies+ UndecidableInstances+ ViewPatterns++ build-depends:+ aeson ^>=2.2,+ base >=4 && <5,+ bytestring,+ generics-sop,+ hasql >=1.9 && <1.10,+ iproute ^>=1.7,+ postgresql-binary >=0.14,+ scientific ^>=0.3,+ text,+ time,+ uuid,+ vector,++ default-language: GHC2021++library+ import: shared+ -- cabal-gild: discover lib+ exposed-modules:+ Hasql.Auto.Decoders+ Hasql.Auto.Encoders+ Hasql.Auto.Types++ hs-source-dirs: lib
+ lib/Hasql/Auto/Decoders.hs view
@@ -0,0 +1,303 @@+-- | Obtain row decoders automatically via either constructors or @ generics-sop @+module Hasql.Auto.Decoders (+ -- * Rows+ defaultRowFor,+ defaultRowForProductType,+ defaultColumn,++ -- * Composites+ defaultCompositeFor,+ defaultCompositeForProductType,+ defaultCompositeField,++ -- * Value decoding+ defaultNullableOrNotValue,+ DefaultValue (..),++ -- * Types+ LiftDefaultRow,+ DefaultRowFor,+ DefaultCompositeFor,+ DefaultNullableOrNotValue,+)+where++import Data.Aeson (FromJSON (..))+import Data.Aeson qualified as JSON+import Data.ByteString (ByteString)+import Data.Functor ((<&>))+import Data.Int (Int16, Int32, Int64)+import Data.Proxy (Proxy (..))+import Data.Scientific (Scientific)+import Data.String (fromString)+import Data.Text (Text)+import Data.Time (Day, DiffTime, LocalTime, TimeOfDay, TimeZone, UTCTime)+import Data.Vector (Vector)+import Generics.SOP qualified as SOP+import Hasql.Auto.Types+import Hasql.Decoders qualified as D+import PostgreSQL.Binary.Range (Multirange, Range (..))++--------------------------------------------------------------------------------+-- Rows+--------------------------------------------------------------------------------++-- | Create a 'D.Row' decoder for a given constructor function. Each argument of+-- the constructor function corresponds to a column to be decoded in the row,+-- whose decoder is provided by 'DefaultNullableOrNotValue', which determines+-- the use of 'D.nullable' or 'D.nonNullable', and is an abstraction over+-- the user-extensible 'DefaultValue' typeclass.+{-# INLINE defaultRowFor #-}+defaultRowFor+ :: forall a f+ . (DefaultRowFor a f)+ => f+ -> D.Row a+defaultRowFor f = liftDefaultRow @(GetConstructorShape f) (pure f)++-- | Create a 'D.Row' decoder for any product type with a 'SOP.Generic' instance+{-# INLINE defaultRowForProductType #-}+defaultRowForProductType :: (SOP.IsProductType a xs, SOP.All DefaultNullableOrNotValue xs) => D.Row a+defaultRowForProductType =+ SOP.productTypeTo+ <$> SOP.hsequence (SOP.hcpure (Proxy :: Proxy DefaultNullableOrNotValue) defaultColumn)++type DefaultRowFor a f = LiftDefaultRow (GetConstructorShape f) a f++class LiftDefaultRow (shape :: ConstructorShape) a f where+ liftDefaultRow :: D.Row f -> D.Row a++instance+ ( DefaultNullableOrNotValue x+ , LiftDefaultRow next r' r+ )+ => LiftDefaultRow (AddColumn next) r' (x -> r)+ where+ {-# INLINE liftDefaultRow #-}+ liftDefaultRow r = liftDefaultRow @next (r <*> defaultColumn)++instance (r ~ r') => LiftDefaultRow DecoderDone r r' where+ {-# INLINE liftDefaultRow #-}+ liftDefaultRow r = r++defaultColumn :: (DefaultNullableOrNotValue a) => D.Row a+defaultColumn = D.column defaultNullableOrNotValue++--------------------------------------------------------------------------------+-- Composite s+--------------------------------------------------------------------------------++type DefaultCompositeFor a f = LiftDefaultComposite (GetConstructorShape f) a f++-- | Create a 'D.Composite' decoder for a given constructor function, a la+-- 'defaultRowFor'.+{-# INLINE defaultCompositeFor #-}+defaultCompositeFor+ :: forall a f+ . (DefaultCompositeFor a f)+ => f+ -> D.Composite a+defaultCompositeFor f =+ liftDefaultComposite @(GetConstructorShape f) (pure f)++-- | Create a 'D.Composite' decoder for any product type with a 'SOP.Generic' instance+{-# INLINE defaultCompositeForProductType #-}+defaultCompositeForProductType :: (SOP.IsProductType a xs, SOP.All DefaultNullableOrNotValue xs) => D.Composite a+defaultCompositeForProductType =+ SOP.productTypeTo+ <$> SOP.hsequence (SOP.hcpure (Proxy :: Proxy DefaultNullableOrNotValue) defaultCompositeField)++class LiftDefaultComposite (shape :: ConstructorShape) a f where+ liftDefaultComposite :: D.Composite f -> D.Composite a++instance+ ( DefaultNullableOrNotValue x+ , LiftDefaultComposite next r' r+ )+ => LiftDefaultComposite (AddColumn next) r' (x -> r)+ where+ {-# INLINE liftDefaultComposite #-}+ liftDefaultComposite r = liftDefaultComposite @next (r <*> defaultCompositeField)++instance (r ~ r') => LiftDefaultComposite DecoderDone r r' where+ {-# INLINE liftDefaultComposite #-}+ liftDefaultComposite r = r++defaultCompositeField :: (DefaultNullableOrNotValue a) => D.Composite a+defaultCompositeField = D.field defaultNullableOrNotValue++--------------------------------------------------------------------------------+-- Value s+--------------------------------------------------------------------------------++defaultNullableOrNotValue+ :: forall a+ . (DefaultNullableOrNotValue a)+ => D.NullableOrNot D.Value a+defaultNullableOrNotValue = defaultNullableOrNotValue_++class DefaultValue a where+ defaultValue :: D.Value a++class DefaultNullableOrNotValue a where+ defaultNullableOrNotValue_ :: D.NullableOrNot D.Value a++-- | When both instances match, this instance takes precedence+instance {-# OVERLAPPING #-} (DefaultValue a) => DefaultNullableOrNotValue (Maybe a) where+ defaultNullableOrNotValue_ = D.nullable defaultValue++instance (DefaultValue a) => DefaultNullableOrNotValue a where+ defaultNullableOrNotValue_ = D.nonNullable defaultValue++--------------------------------------------------------------------------------+-- Instances for PostgreSQL types++instance DefaultValue Bool where+ {-# INLINE defaultValue #-}+ defaultValue = D.bool++instance DefaultValue Int16 where+ {-# INLINE defaultValue #-}+ defaultValue = D.int2++instance DefaultValue Int32 where+ {-# INLINE defaultValue #-}+ defaultValue = D.int4++instance DefaultValue Int64 where+ {-# INLINE defaultValue #-}+ defaultValue = D.int8++instance DefaultValue Float where+ {-# INLINE defaultValue #-}+ defaultValue = D.float4++instance DefaultValue Double where+ {-# INLINE defaultValue #-}+ defaultValue = D.float8++instance DefaultValue Scientific where+ {-# INLINE defaultValue #-}+ defaultValue = D.numeric++instance DefaultValue Char where+ {-# INLINE defaultValue #-}+ defaultValue = D.char++instance DefaultValue Text where+ {-# INLINE defaultValue #-}+ defaultValue = D.text++instance DefaultValue ByteString where+ {-# INLINE defaultValue #-}+ defaultValue = D.bytea++instance DefaultValue Day where+ {-# INLINE defaultValue #-}+ defaultValue = D.date++instance DefaultValue LocalTime where+ {-# INLINE defaultValue #-}+ defaultValue = D.timestamp++instance DefaultValue UTCTime where+ {-# INLINE defaultValue #-}+ defaultValue = D.timestamptz++instance DefaultValue TimeOfDay where+ {-# INLINE defaultValue #-}+ defaultValue = D.time++instance DefaultValue (TimeOfDay, TimeZone) where+ {-# INLINE defaultValue #-}+ defaultValue = D.timetz++instance DefaultValue DiffTime where+ {-# INLINE defaultValue #-}+ defaultValue = D.interval++instance DefaultValue JSON.Value where+ {-# INLINE defaultValue #-}+ defaultValue = D.jsonb++instance (DefaultValue a, DefaultNullableOrNotValue a) => DefaultValue (Vector a) where+ {-# INLINE defaultValue #-}+ defaultValue = D.vectorArray defaultNullableOrNotValue++instance (DefaultValue a, DefaultNullableOrNotValue a) => DefaultValue [a] where+ {-# INLINE defaultValue #-}+ defaultValue = D.listArray defaultNullableOrNotValue++instance DefaultValue (Range Int32) where+ {-# INLINE defaultValue #-}+ defaultValue = D.int4range++instance DefaultValue (Range Int64) where+ {-# INLINE defaultValue #-}+ defaultValue = D.int8range++instance DefaultValue (Range Scientific) where+ {-# INLINE defaultValue #-}+ defaultValue = D.numrange++instance DefaultValue (Range LocalTime) where+ {-# INLINE defaultValue #-}+ defaultValue = D.tsrange++instance DefaultValue (Range UTCTime) where+ {-# INLINE defaultValue #-}+ defaultValue = D.tstzrange++instance DefaultValue (Range Day) where+ {-# INLINE defaultValue #-}+ defaultValue = D.daterange++instance DefaultValue (Multirange Int32) where+ {-# INLINE defaultValue #-}+ defaultValue = D.int4multirange++instance DefaultValue (Multirange Int64) where+ {-# INLINE defaultValue #-}+ defaultValue = D.int8multirange++instance DefaultValue (Multirange Scientific) where+ {-# INLINE defaultValue #-}+ defaultValue = D.nummultirange++instance DefaultValue (Multirange LocalTime) where+ {-# INLINE defaultValue #-}+ defaultValue = D.tsmultirange++instance DefaultValue (Multirange UTCTime) where+ {-# INLINE defaultValue #-}+ defaultValue = D.tstzmultirange++instance DefaultValue (Multirange Day) where+ {-# INLINE defaultValue #-}+ defaultValue = D.datemultirange++--------------------------------------------------------------------------------+-- Extra helper types++instance (FromJSON a) => DefaultValue (ViaJSONB a) where+ {-# INLINE defaultValue #-}+ defaultValue =+ ViaJSONB+ <$> D.jsonbBytes (JSON.eitherDecodeStrict <&> either (Left . fromString) Right)++instance (FromJSON a) => DefaultValue (ViaJSON a) where+ {-# INLINE defaultValue #-}+ defaultValue =+ ViaJSON+ <$> D.jsonBytes (JSON.eitherDecodeStrict <&> either (Left . fromString) Right)++--------------------------------------------------------------------------------+-- Helper types++data ConstructorShape+ = DecoderDone+ | AddColumn ConstructorShape++type family GetConstructorShape a where+ GetConstructorShape (a -> b) = AddColumn (GetConstructorShape b)+ GetConstructorShape _ = DecoderDone
+ lib/Hasql/Auto/Encoders.hs view
@@ -0,0 +1,187 @@+-- | This module is sourced from and almost identical to that in the+-- [hasql-implicits](https://hackage.haskell.org/hasql-implicits) package. Its+-- purpose is that you don't have to depend on both 'hasql-auto', and to provide+-- the 'defaultParams' and 'defaultParamsSOP' functions. Those two functions are+-- similar to definitions found in+-- [hasql-generic](https://hackage.haskell.org/package/hasql-generic-0.1.0.5/docs/Hasql-Generic-HasParams.html),+-- with slightly different implementations. This package does not need types to+-- have an instance of a 'HasParams'-esque class, but it does require them to be+-- product types and have a 'Generics.SOP.Generic' instance.+--+-- == hasql-implicits credit, providing 'DefaultParamEncoder' and most of its instances+--+-- Copyright (c) 2019, Nikita Volkov+--+-- Permission is hereby granted, free of charge, to any person+-- obtaining a copy of this software and associated documentation+-- files (the "Software"), to deal in the Software without+-- restriction, including without limitation the rights to use,+-- copy, modify, merge, publish, distribute, sublicense, and/or sell+-- copies of the Software, and to permit persons to whom the+-- Software is furnished to do so, subject to the following+-- conditions:+--+-- The above copyright notice and this permission notice shall be+-- included in all copies or substantial portions of the Software.+--+-- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,+-- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES+-- OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND+-- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT+-- HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,+-- WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING+-- FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR+-- OTHER DEALINGS IN THE SOFTWARE.+module Hasql.Auto.Encoders (+ defaultParams,+ defaultParamsNP,+ defaultParam,+ DefaultParamEncoder (..),+ DefaultScalarParamEncoder (..),+) where++import Data.Aeson (ToJSON)+import Data.Aeson qualified as JSON+import Data.ByteString (ByteString)+import Data.Foldable qualified as F+import Data.Functor.Contravariant (Contravariant (contramap))+import Data.IP (IPRange)+import Data.Int (Int16, Int32, Int64)+import Data.Proxy (Proxy (..))+import Data.Scientific (Scientific)+import Data.Text (Text)+import Data.Time (Day, DiffTime, LocalTime, TimeOfDay, TimeZone, UTCTime)+import Data.UUID (UUID)+import Data.Vector (Vector)+import GHC.TypeError (Unsatisfiable)+import GHC.TypeLits (ErrorMessage (Text))+import Generics.SOP (All, Code (..), I (..), K (..), NP (..), SListI, unI)+import Generics.SOP qualified as SOP+import Hasql.Auto.Types+import Hasql.Encoders (NullableOrNot, Params, Value, array, dimension, element, nonNullable, nullable)+import Hasql.Encoders qualified as E++{-# INLINE defaultParams #-}+defaultParams :: (SOP.IsProductType a xs, All DefaultParamEncoder xs) => Params a+defaultParams = contramap SOP.productTypeFrom defaultParamsNP++{-# INLINE defaultParamsNP #-}+defaultParamsNP :: (All DefaultParamEncoder xs) => Params (NP I xs)+defaultParamsNP =+ SOP.hcfoldMap+ (Proxy :: Proxy DefaultParamEncoder)+ (\(SOP.Fn getter) -> contramap (unI . getter . K) (E.param defaultParam))+ SOP.projections++--------------------------------------------------------------------------------++class (DefaultParamEncoderImpl (IsScalar a) a) => DefaultParamEncoder a+instance (DefaultParamEncoderImpl (IsScalar a) a) => DefaultParamEncoder a++-- | Provides a default implementation of parameter encoder.+defaultParam :: forall a. (DefaultParamEncoder a) => NullableOrNot Value a+defaultParam = defaultParamImpl @(IsScalar a) @a++-- | Provides a default implementation of parameter encoder.+--+-- Don't implement instances to this typeclass.+class DefaultParamEncoderImpl isScalar a where+ -- | Default parameter encoder with nullability specified.+ defaultParamImpl :: NullableOrNot Value a++type family IsScalar a where+ IsScalar (Maybe a) = 'False+ IsScalar (Vector a) = 'False+ IsScalar [a] = 'False+ IsScalar _ = 'True++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'True a where+ defaultParamImpl = nonNullable defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False [a] where+ defaultParamImpl = (nonNullable . array . dimension F.foldl' . element . nonNullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False [Maybe a] where+ defaultParamImpl = (nonNullable . array . dimension F.foldl' . element . nullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False [[a]] where+ defaultParamImpl = (nonNullable . array . dimension F.foldl' . dimension F.foldl' . element . nonNullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False [[Maybe a]] where+ defaultParamImpl = (nonNullable . array . dimension F.foldl' . dimension F.foldl' . element . nullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Vector a) where+ defaultParamImpl = (nonNullable . array . dimension F.foldl' . element . nonNullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Vector (Maybe a)) where+ defaultParamImpl = (nonNullable . array . dimension F.foldl' . element . nullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Vector (Vector a)) where+ defaultParamImpl = (nonNullable . array . dimension F.foldl' . dimension F.foldl' . element . nonNullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Vector (Vector (Maybe a))) where+ defaultParamImpl = (nonNullable . array . dimension F.foldl' . dimension F.foldl' . element . nullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe a) where+ defaultParamImpl = nullable defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe [a]) where+ defaultParamImpl = (nullable . array . dimension F.foldl' . element . nonNullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe [Maybe a]) where+ defaultParamImpl = (nullable . array . dimension F.foldl' . element . nullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe [[a]]) where+ defaultParamImpl = (nullable . array . dimension F.foldl' . dimension F.foldl' . element . nonNullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe [[Maybe a]]) where+ defaultParamImpl = (nullable . array . dimension F.foldl' . dimension F.foldl' . element . nullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe (Vector a)) where+ defaultParamImpl = (nullable . array . dimension F.foldl' . element . nonNullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe (Vector (Maybe a))) where+ defaultParamImpl = (nullable . array . dimension F.foldl' . element . nullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe (Vector (Vector a))) where+ defaultParamImpl = (nullable . array . dimension F.foldl' . dimension F.foldl' . element . nonNullable) defaultScalarParam++instance (DefaultScalarParamEncoder a) => DefaultParamEncoderImpl 'False (Maybe (Vector (Vector (Maybe a)))) where+ defaultParamImpl = (nullable . array . dimension F.foldl' . dimension F.foldl' . element . nullable) defaultScalarParam++--------------------------------------------------------------------------------++class DefaultScalarParamEncoder a where+ defaultScalarParam :: Value a++instance DefaultScalarParamEncoder Char where defaultScalarParam = E.char+instance DefaultScalarParamEncoder Double where defaultScalarParam = E.float8+instance DefaultScalarParamEncoder Float where defaultScalarParam = E.float4+instance DefaultScalarParamEncoder Int16 where defaultScalarParam = E.int2+instance DefaultScalarParamEncoder Int32 where defaultScalarParam = E.int4+instance DefaultScalarParamEncoder Int64 where defaultScalarParam = E.int8+instance DefaultScalarParamEncoder ByteString where defaultScalarParam = E.bytea+instance DefaultScalarParamEncoder Scientific where defaultScalarParam = E.numeric+instance DefaultScalarParamEncoder Text where defaultScalarParam = E.text+instance DefaultScalarParamEncoder UTCTime where defaultScalarParam = E.timestamptz+instance DefaultScalarParamEncoder JSON.Value where defaultScalarParam = E.jsonb+instance (JSON.ToJSON a) => DefaultScalarParamEncoder (ViaJSONB a) where defaultScalarParam = encodeViaJSONB+instance (JSON.ToJSON a) => DefaultScalarParamEncoder (ViaJSON a) where defaultScalarParam = encodeViaJSON+instance DefaultScalarParamEncoder UUID where defaultScalarParam = E.uuid+instance DefaultScalarParamEncoder Day where defaultScalarParam = E.date+instance DefaultScalarParamEncoder DiffTime where defaultScalarParam = E.interval+instance DefaultScalarParamEncoder TimeOfDay where defaultScalarParam = E.time+instance DefaultScalarParamEncoder LocalTime where defaultScalarParam = E.timestamp+instance DefaultScalarParamEncoder (TimeOfDay, TimeZone) where defaultScalarParam = E.timetz+instance DefaultScalarParamEncoder IPRange where defaultScalarParam = E.inet+instance DefaultScalarParamEncoder Bool where defaultScalarParam = E.bool++encodeViaJSONB :: (ToJSON a) => Value (ViaJSONB a)+encodeViaJSONB = contramap toBS E.jsonbLazyBytes+ where+ toBS (ViaJSONB a) = JSON.encode a++encodeViaJSON :: (ToJSON a) => Value (ViaJSON a)+encodeViaJSON = contramap toBS E.jsonLazyBytes+ where+ toBS (ViaJSON a) = JSON.encode a
+ lib/Hasql/Auto/Types.hs view
@@ -0,0 +1,7 @@+module Hasql.Auto.Types where++-- | Decode or encode the type via @ jsonb @ first+newtype ViaJSONB a = ViaJSONB {unViaJSONB :: a}++-- | Decode or encode the type via @ json @ first+newtype ViaJSON a = ViaJSON {unViaJSON :: a}