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Require Opaleye >= 0.7.3 (#81)
0.7.3 has important changes to where lateral joins are introduced, and fixes #72.
This commit is contained in:
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@ -5,10 +5,10 @@
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"homepage": "https://input-output-hk.github.io/haskell.nix",
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"owner": "input-output-hk",
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"repo": "haskell.nix",
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"rev": "e7bb8ab2921a11a1d014c70a87898f73e086594d",
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"sha256": "17c0xqzwnchcy71p8372cydcxc7qf0i8x12d0lf6p1g8yd4al6fa",
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"rev": "3856d2d24dca0ecc71fcfc314253a2a2d07a3c4f",
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"sha256": "0s69nasqhkv8n0qmdv075k83p3z584ja9vkzdnp2291mymghvx87",
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"type": "tarball",
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"url": "https://github.com/input-output-hk/haskell.nix/archive/e7bb8ab2921a11a1d014c70a87898f73e086594d.tar.gz",
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"url": "https://github.com/input-output-hk/haskell.nix/archive/3856d2d24dca0ecc71fcfc314253a2a2d07a3c4f.tar.gz",
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"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
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},
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"niv": {
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@ -17,10 +17,10 @@
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"homepage": "https://github.com/nmattia/niv",
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"owner": "nmattia",
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"repo": "niv",
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"rev": "af958e8057f345ee1aca714c1247ef3ba1c15f5e",
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"sha256": "1qjavxabbrsh73yck5dcq8jggvh3r2jkbr6b5nlz5d9yrqm9255n",
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"rev": "e0ca65c81a2d7a4d82a189f1e23a48d59ad42070",
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"sha256": "1pq9nh1d8nn3xvbdny8fafzw87mj7gsmp6pxkdl65w2g18rmcmzx",
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"type": "tarball",
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"url": "https://github.com/nmattia/niv/archive/af958e8057f345ee1aca714c1247ef3ba1c15f5e.tar.gz",
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"url": "https://github.com/nmattia/niv/archive/e0ca65c81a2d7a4d82a189f1e23a48d59ad42070.tar.gz",
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"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
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},
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"nixpkgs": {
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@ -29,10 +29,10 @@
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"homepage": null,
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"owner": "nixos",
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"repo": "nixpkgs",
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"rev": "a6847cb5460b47241eb35d1a6588652411642066",
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"sha256": "0wb5hwgffr4in66qng22sfvbascwnq078q81ziwwayvmnkn73rrm",
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"rev": "59b8d9cf24e9fcf10341a0923c9bdca088dca8c8",
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"sha256": "08f38v4b2kcxnbapdwrb54bglka92cxj9qlnqlk5px206jyq9v4c",
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"type": "tarball",
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"url": "https://github.com/nixos/nixpkgs/archive/a6847cb5460b47241eb35d1a6588652411642066.tar.gz",
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"url": "https://github.com/nixos/nixpkgs/archive/59b8d9cf24e9fcf10341a0923c9bdca088dca8c8.tar.gz",
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"url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
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}
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}
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@ -6,25 +6,33 @@ let
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# The fetchers. fetch_<type> fetches specs of type <type>.
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#
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fetch_file = pkgs: spec:
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if spec.builtin or true then
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builtins_fetchurl { inherit (spec) url sha256; }
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else
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pkgs.fetchurl { inherit (spec) url sha256; };
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fetch_file = pkgs: name: spec:
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let
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name' = sanitizeName name + "-src";
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in
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if spec.builtin or true then
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builtins_fetchurl { inherit (spec) url sha256; name = name'; }
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else
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pkgs.fetchurl { inherit (spec) url sha256; name = name'; };
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fetch_tarball = pkgs: name: spec:
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let
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ok = str: ! builtins.isNull (builtins.match "[a-zA-Z0-9+-._?=]" str);
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# sanitize the name, though nix will still fail if name starts with period
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name' = stringAsChars (x: if ! ok x then "-" else x) "${name}-src";
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name' = sanitizeName name + "-src";
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in
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if spec.builtin or true then
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builtins_fetchTarball { name = name'; inherit (spec) url sha256; }
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else
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pkgs.fetchzip { name = name'; inherit (spec) url sha256; };
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fetch_git = spec:
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builtins.fetchGit { url = spec.repo; inherit (spec) rev ref; };
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fetch_git = name: spec:
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let
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ref =
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if spec ? ref then spec.ref else
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if spec ? branch then "refs/heads/${spec.branch}" else
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if spec ? tag then "refs/tags/${spec.tag}" else
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abort "In git source '${name}': Please specify `ref`, `tag` or `branch`!";
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in
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builtins.fetchGit { url = spec.repo; inherit (spec) rev; inherit ref; };
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fetch_local = spec: spec.path;
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@ -40,11 +48,21 @@ let
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# Various helpers
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#
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# https://github.com/NixOS/nixpkgs/pull/83241/files#diff-c6f540a4f3bfa4b0e8b6bafd4cd54e8bR695
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sanitizeName = name:
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(
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concatMapStrings (s: if builtins.isList s then "-" else s)
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(
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builtins.split "[^[:alnum:]+._?=-]+"
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((x: builtins.elemAt (builtins.match "\\.*(.*)" x) 0) name)
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)
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);
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# The set of packages used when specs are fetched using non-builtins.
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mkPkgs = sources:
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mkPkgs = sources: system:
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let
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sourcesNixpkgs =
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import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) {};
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import (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) { inherit system; };
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hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
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hasThisAsNixpkgsPath = <nixpkgs> == ./.;
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in
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@ -64,9 +82,9 @@ let
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if ! builtins.hasAttr "type" spec then
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abort "ERROR: niv spec ${name} does not have a 'type' attribute"
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else if spec.type == "file" then fetch_file pkgs spec
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else if spec.type == "file" then fetch_file pkgs name spec
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else if spec.type == "tarball" then fetch_tarball pkgs name spec
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else if spec.type == "git" then fetch_git spec
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else if spec.type == "git" then fetch_git name spec
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else if spec.type == "local" then fetch_local spec
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else if spec.type == "builtin-tarball" then fetch_builtin-tarball name
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else if spec.type == "builtin-url" then fetch_builtin-url name
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@ -80,7 +98,10 @@ let
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saneName = stringAsChars (c: if isNull (builtins.match "[a-zA-Z0-9]" c) then "_" else c) name;
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ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}";
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in
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if ersatz == "" then drv else ersatz;
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if ersatz == "" then drv else
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# this turns the string into an actual Nix path (for both absolute and
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# relative paths)
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if builtins.substring 0 1 ersatz == "/" then /. + ersatz else /. + builtins.getEnv "PWD" + "/${ersatz}";
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# Ports of functions for older nix versions
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@ -98,25 +119,29 @@ let
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# https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L269
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stringAsChars = f: s: concatStrings (map f (stringToCharacters s));
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concatMapStrings = f: list: concatStrings (map f list);
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concatStrings = builtins.concatStringsSep "";
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# https://github.com/NixOS/nixpkgs/blob/8a9f58a375c401b96da862d969f66429def1d118/lib/attrsets.nix#L331
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optionalAttrs = cond: as: if cond then as else {};
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# fetchTarball version that is compatible between all the versions of Nix
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builtins_fetchTarball = { url, name, sha256 }@attrs:
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builtins_fetchTarball = { url, name ? null, sha256 }@attrs:
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let
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inherit (builtins) lessThan nixVersion fetchTarball;
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in
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if lessThan nixVersion "1.12" then
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fetchTarball { inherit name url; }
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fetchTarball ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
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else
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fetchTarball attrs;
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# fetchurl version that is compatible between all the versions of Nix
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builtins_fetchurl = { url, sha256 }@attrs:
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builtins_fetchurl = { url, name ? null, sha256 }@attrs:
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let
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inherit (builtins) lessThan nixVersion fetchurl;
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in
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if lessThan nixVersion "1.12" then
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fetchurl { inherit url; }
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fetchurl ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
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else
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fetchurl attrs;
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@ -135,7 +160,8 @@ let
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mkConfig =
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{ sourcesFile ? if builtins.pathExists ./sources.json then ./sources.json else null
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, sources ? if isNull sourcesFile then {} else builtins.fromJSON (builtins.readFile sourcesFile)
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, pkgs ? mkPkgs sources
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, system ? builtins.currentSystem
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, pkgs ? mkPkgs sources system
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}: rec {
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# The sources, i.e. the attribute set of spec name to spec
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inherit sources;
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@ -25,7 +25,7 @@ library
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, case-insensitive
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, contravariant
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, hasql ^>= 1.4.5.1
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, opaleye ^>= 0.7.2.0
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, opaleye ^>= 0.7.3.0
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, profunctors
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, scientific
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, semialign
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@ -169,14 +169,14 @@ instance Bind Query where
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instance Monad Query where
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Query q >>= f = Query $ \dummies -> Opaleye.QueryArr $ \(_, query, tag) ->
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Query q >>= f = Query $ \dummies -> Opaleye.QueryArr $ \(_, tag) ->
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let
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Opaleye.QueryArr qa = q dummies
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((m, a), query', tag') = qa ((), query, tag)
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((m, a), query, tag') = qa ((), tag)
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Query q' = f a
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(dummies', query'', tag'') =
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(dummies', query', tag'') =
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( dummy : dummies
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, Opaleye.Rebind True bindings query'
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, \lateral -> Opaleye.Rebind True bindings . query lateral
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, Opaleye.next tag'
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)
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where
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@ -185,19 +185,13 @@ instance Monad Query where
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random = Opaleye.FunExpr "random" []
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name = Opaleye.extractAttr "dummy" tag'
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Opaleye.QueryArr qa' = Opaleye.lateral $ \_ -> q' dummies'
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-- NOTE: query''' and needsDummies are corecursive; only laziness saves
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-- us here.
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--
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-- This refactoring, if adopted, would allow us to do this without
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-- relying on laziness:
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-- https://github.com/tomjaguarpaw/haskell-opaleye/commit/8a23f5028ab7396290984d63a8316949909fdbb4
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((m'@(Any needsDummies), b), query'''', tag''') = qa' ((), query''', tag'')
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((m'@(Any needsDummies), b), query'', tag''') = qa' ((), tag'')
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query'''
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| needsDummies = query''
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| otherwise = query'
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| needsDummies = \lateral -> query'' lateral . query' lateral
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| otherwise = \lateral -> query'' lateral . query lateral
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m'' = m <> m'
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in
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((m'', b), query'''', tag''')
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((m'', b), query''', tag''')
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-- | '<|>:' = 'unionAll'.
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@ -55,13 +55,13 @@ laterally a = Query $ \bindings -> pure $ (Any True,) $
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-- variable in the SQL. The @a@ returned consists only of these
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-- variables. It's essentially a @let@ binding for Postgres expressions.
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rebind :: Table Expr a => a -> Query a
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rebind a = Query $ \_ -> Opaleye.QueryArr $ \(_, query, tag) ->
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rebind a = Query $ \_ -> Opaleye.QueryArr $ \(_, tag) ->
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let
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tag' = Opaleye.next tag
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(a', bindings) = Opaleye.run $
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Opaleye.runUnpackspec unpackspec (Opaleye.extractAttr "eval" tag') a
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in
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((mempty, a'), Opaleye.Rebind True bindings query, tag')
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((mempty, a'), \_ -> Opaleye.Rebind True bindings, tag')
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foldl1' :: (a -> a -> a) -> NonEmpty a -> a
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@ -9,15 +9,11 @@ where
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import Prelude
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-- opaleye
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import qualified Opaleye.Internal.PackMap as Opaleye
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import qualified Opaleye.Internal.PrimQuery as Opaleye
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import qualified Opaleye.Internal.QueryArr as Opaleye
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import qualified Opaleye.Internal.Tag as Opaleye
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import qualified Opaleye.Internal.MaybeFields as Opaleye
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-- rel8
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import Rel8.Expr.Bool ( true )
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import Rel8.Expr.Eq ( (==.) )
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import Rel8.Expr.Opaleye ( toPrimExpr, traversePrimExpr )
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import Rel8.Expr.Opaleye ( fromColumn, fromPrimExpr )
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import Rel8.Query ( Query )
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import Rel8.Query.Filter ( where_ )
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import Rel8.Query.Opaleye ( mapOpaleye )
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@ -31,18 +27,10 @@ import Rel8.Table.Tag ( Tag(..), fromExpr )
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-- To speak in more concrete terms, 'optional' is most useful to write @LEFT
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-- JOIN@s.
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optional :: Query a -> Query (MaybeTable a)
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optional = mapOpaleye $ \query -> Opaleye.QueryArr $ \i -> case i of
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(_, left, tag) -> (ma', join, tag'')
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where
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(ma, right, tag') = Opaleye.runSimpleQueryArr (pure <$> query) ((), tag)
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MaybeTable Tag {expr = just} a = ma
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(just', bindings) = Opaleye.run $ do
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traversePrimExpr (Opaleye.extractAttr "isJust" tag') just
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tag'' = Opaleye.next tag'
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join = Opaleye.Join Opaleye.LeftJoin on [] bindings left right
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where
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on = toPrimExpr true
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ma' = MaybeTable (fromExpr just') a
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optional =
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mapOpaleye $
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Opaleye.optionalInternal $
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MaybeTable . fromExpr . fromPrimExpr . fromColumn
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-- | Filter out 'MaybeTable's, returning only the tables that are not-null.
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@ -40,23 +40,23 @@ zipOpaleyeWith f (Query a) (Query b) = Query $ liftA2 (zipping f) a b
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mapping :: ()
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=> (Opaleye.Select a -> Opaleye.Select b)
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-> Opaleye.Select (m, a) -> Opaleye.Select (m, b)
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mapping f q@(Opaleye.QueryArr qa) = Opaleye.QueryArr $ \(_, query, tag) ->
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mapping f q@(Opaleye.QueryArr qa) = Opaleye.QueryArr $ \(_, tag) ->
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let
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((m, _), _, _) = qa ((), query, tag)
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((m, _), _, _) = qa ((), tag)
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Opaleye.QueryArr qa' = (m,) <$> f (snd <$> q)
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in
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qa' ((), query, tag)
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qa' ((), tag)
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zipping :: Semigroup m
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=> (Opaleye.Select a -> Opaleye.Select b -> Opaleye.Select c)
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-> Opaleye.Select (m, a) -> Opaleye.Select (m, b) -> Opaleye.Select (m, c)
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zipping f q@(Opaleye.QueryArr qa) q'@(Opaleye.QueryArr qa') =
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Opaleye.QueryArr $ \(_, query, tag) ->
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Opaleye.QueryArr $ \(_, tag) ->
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let
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((m, _), _, _) = qa ((), query, tag)
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((m', _), _, _) = qa' ((), query, tag)
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((m, _), _, _) = qa ((), tag)
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((m', _), _, _) = qa' ((), tag)
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m'' = m <> m'
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Opaleye.QueryArr qa'' = (m'',) <$> f (snd <$> q) (snd <$> q')
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in
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qa'' ((), query, tag)
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qa'' ((), tag)
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|
@ -46,7 +46,7 @@ alignBy :: ()
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=> (a -> b -> Expr Bool)
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-> Query a -> Query b -> Query (TheseTable a b)
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alignBy condition = zipOpaleyeWith $ \left right -> Opaleye.QueryArr $ \i -> case i of
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(_, input, tag) -> (tab, join', tag''')
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(_, tag) -> (tab, join', tag''')
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where
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(ma, left', tag') = Opaleye.runSimpleQueryArr (pure <$> left) ((), tag)
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(mb, right', tag'') = Opaleye.runSimpleQueryArr (pure <$> right) ((), tag')
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@ -57,13 +57,15 @@ alignBy condition = zipOpaleyeWith $ \left right -> Opaleye.QueryArr $ \i -> cas
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(hasThere', rbindings) = Opaleye.run $ do
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traversePrimExpr (Opaleye.extractAttr "hasThere" tag'') hasThere
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tag''' = Opaleye.next tag''
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join = Opaleye.Join Opaleye.FullJoin on lbindings rbindings left' right'
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join lateral = Opaleye.Join Opaleye.FullJoin on left'' right''
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where
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on = toPrimExpr $ condition a b
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left'' = (lateral, Opaleye.Rebind True lbindings left')
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right'' = (lateral, Opaleye.Rebind True rbindings right')
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ma' = MaybeTable (fromExpr hasHere') a
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mb' = MaybeTable (fromExpr hasThere') b
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tab = TheseTable {here = ma', there = mb'}
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join' = Opaleye.times input join
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join' lateral input = Opaleye.times lateral input (join lateral)
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-- | Filter 'TheseTable's, keeping only 'thisTable's and 'thoseTable's.
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|
@ -759,13 +759,13 @@ testEvaluate = databasePropertyTest "evaluate has the evaluation order we expect
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normalize selected' ===
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[ (('a', 'd'), (0, 0))
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, (('b', 'd'), (1, 1))
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, (('c', 'd'), (2, 2))
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, (('a', 'e'), (3, 3))
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, (('a', 'e'), (1, 1))
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, (('a', 'f'), (2, 2))
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, (('b', 'd'), (3, 3))
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, (('b', 'e'), (4, 4))
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, (('c', 'e'), (5, 5))
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, (('a', 'f'), (6, 6))
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, (('b', 'f'), (7, 7))
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, (('b', 'f'), (5, 5))
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, (('c', 'd'), (6, 6))
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, (('c', 'e'), (7, 7))
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, (('c', 'f'), (8, 8))
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]
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|
||||
|
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Reference in New Issue
Block a user