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+checksum = "58fa5ff6ad0d98d1ffa8cb115892b6e69d67799f6763e162a1c9db421dc22e11"
+dependencies = [
+ "base-x",
+ "proc-macro2",
+ "quote",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "sha1",
+ "syn",
+]
+
+[[package]]
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+dependencies = [
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+ "quote",
+ "unicode-xid",
+]
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+[[package]]
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+ "fastrand",
+ "libc",
+ "redox_syscall",
+ "remove_dir_all",
+ "winapi",
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+[[package]]
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+[[package]]
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+ "libc",
+ "standback",
+ "stdweb",
+ "time-macros",
+ "version_check",
+ "winapi",
+]
+
+[[package]]
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+ "time-macros-impl",
+]
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+ "quote",
+ "standback",
+ "syn",
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+ "libc",
+ "memchr",
+ "mio",
+ "num_cpus",
+ "once_cell",
+ "pin-project-lite",
+ "signal-hook-registry",
+ "socket2",
+ "tokio-macros",
+ "winapi",
+]
+
+[[package]]
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+ "futures-sink",
+ "log",
+ "pin-project-lite",
+ "tokio",
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+[[package]]
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+ "pin-project-lite",
+ "tracing-attributes",
+ "tracing-core",
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+[[package]]
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+ "quote",
+ "syn",
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+ "valuable",
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+ "tracing-core",
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+ "ansi_term",
+ "lazy_static",
+ "matchers",
+ "regex",
+ "sharded-slab",
+ "smallvec",
+ "thread_local",
+ "tracing",
+ "tracing-core",
+ "tracing-log",
+]
+
+[[package]]
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+ "serde",
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+[[package]]
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+ "version_check",
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+ "try-lock",
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+ "cfg-if",
+ "wasm-bindgen-macro",
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+[[package]]
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+ "bumpalo",
+ "lazy_static",
+ "log",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
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+ "quote",
+ "wasm-bindgen-macro-support",
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+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
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+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
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+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
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+
+[[package]]
+name = "yansi"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..8d6fda2
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,19 @@
+[package]
+name = "doujinsea-backend"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+chrono = { version = "0.4.19", features = ["serde"] }
+rocket = { version = "0.5.0-rc.1", features = ["json", "msgpack"] }
+diesel = { version = "1.4.8", features = ["sqlite", "chrono"] }
+
+[build-dependencies]
+# needed for database scripts, but cargo doesn't support cli deps
+# diesel_cli = { version = "1.4.1", features = ["sqlite"] }
+# diesel_cli_ext = { version = "0.3.6" }
+
+[dependencies.rocket_sync_db_pools]
+version = "0.1.0-rc.1"
+default-features = false
+features = ["diesel_sqlite_pool"]
diff --git a/Rocket.toml b/Rocket.toml
new file mode 100644
index 0000000..f323301
--- /dev/null
+++ b/Rocket.toml
@@ -0,0 +1,2 @@
+[global.databases]
+kanta = { url = "kanta.sqlite" }
diff --git a/db/kanta.sql b/db/kanta.sql
new file mode 100644
index 0000000..e6b4fb9
--- /dev/null
+++ b/db/kanta.sql
@@ -0,0 +1,182 @@
+-- set GLOBAL time_zone = '+00:00';
+pragma foreign_keys = on;
+
+-- user / organization data
+drop table if exists users;
+create table users (
+   -- id of the user / org
+   id integer not null primary key autoincrement,
+   -- creation time
+   created_at timestamp not null default current_timestamp,
+   -- last update
+   updated_at timestamp,
+   -- is this user an organization?
+   org boolean not null,
+   -- email address
+   email text not null unique,
+   -- user / organization name
+   name text not null unique,
+   -- password
+   pass text not null,
+   -- metadata
+   meta text not null default '{}'
+);
+
+-- organization level access control lists
+drop table if exists org_acls;
+create table org_acls (
+   -- org acl id
+   id integer not null primary key autoincrement,
+   -- user id (user.organization == true)
+   org integer not null,
+   -- user id (member of the organization)
+   member integer not null,
+   -- ACL bits (what the member can do in the organization)
+   rights integer not null,
+   -- relationships
+   foreign key (org) references users (id),
+   foreign key (member) references users (id)
+);
+
+-- engines
+drop table if exists engines;
+create table engines (
+   -- id of the engine
+   id integer not null primary key autoincrement,
+   -- engine name
+   name text not null,
+   -- extra metadata
+   meta text not null default '{}'
+);
+
+-- products
+drop table if exists products;
+create table products (
+   -- id of the product
+   id integer not null primary key autoincrement,
+   -- creation time
+   created_at timestamp not null default current_timestamp,
+   -- last update
+   updated_at timestamp,
+   -- engine id
+   engine integer not null,
+   -- supported platforms
+   platforms integer not null,
+   -- price
+   price integer not null,
+   -- title
+   title text not null,
+   -- description
+   body text not null,
+   -- short description
+   short text not null,
+   -- header image
+   header text not null,
+   -- extra metadata
+   meta text not null default '{}',
+   -- relationships
+   foreign key (engine) references engines (id)
+);
+
+-- tags
+drop table if exists tags;
+create table tags (
+   -- id of the tag
+   id integer not null primary key autoincrement,
+   -- tag name
+   name text not null,
+   -- extra metadata
+   meta text not null default '{}'
+);
+
+-- product tags
+drop table if exists product_tags;
+create table product_tags (
+   -- product tag id
+   id integer not null primary key autoincrement,
+   -- product id
+   product integer not null,
+   -- tag id
+   tag integer not null,
+   -- relationships
+   foreign key (product) references products (id),
+   foreign key (tag) references roles (id)
+);
+
+-- product level access control lists
+drop table if exists product_acls;
+create table product_acls (
+   -- product acl id
+   id integer not null primary key autoincrement,
+   -- product id
+   product integer not null,
+   -- user id
+   member integer not null,
+   -- ACL bits (what the member can do with the product)
+   rights integer not null,
+   -- relationships
+   foreign key (member) references users (id),
+   foreign key (product) references products (id)
+);
+
+-- roles
+drop table if exists roles;
+create table roles (
+   -- id of the role
+   id integer not null primary key autoincrement,
+   -- name of the role
+   name text not null
+);
+
+-- creators
+drop table if exists creators;
+create table creators (
+   -- id of the creator
+   id integer not null primary key autoincrement,
+   -- creation time
+   created_at timestamp not null default current_timestamp,
+   -- last update
+   updated_at timestamp,
+   -- name of the creator
+   name text not null,
+   -- extra metadata
+   meta text not null default '{}'
+);
+
+-- product creators
+drop table if exists product_creators;
+create table product_creators (
+   -- product creator id
+   id integer not null primary key autoincrement,
+   -- creator id
+   creator integer not null,
+   -- product id
+   product integer not null,
+   -- role id
+   role integer not null,
+   -- relationships
+   foreign key (creator) references creators (id),
+   foreign key (product) references products (id),
+   foreign key (role) references roles (id)
+);
+
+-- product reviews
+drop table if exists reviews;
+create table reviews (
+   -- review id
+   id integer not null primary key autoincrement,
+   -- creation time
+   created_at timestamp not null default current_timestamp,
+   -- last update
+   updated_at timestamp,
+   -- product id
+   product integer not null,
+   -- rating
+   rating integer not null,
+   -- title
+   title text not null,
+   -- body
+   body text not null,
+   -- relationships
+   foreign key (product) references products (id)
+);
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..1d1b6c4
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,28 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+rec {
+  diesel-cli-ext = pkgs.buildPackages.rustPlatform.buildRustPackage rec {
+    pname = "diesel-cli-ext";
+    version = "0.3.6";
+    cargoSha256 = "1npmr1sy7d6gv7j3r8c03c7k7c9fv0kvipl96cm6g1c90qqba2hx";
+    src = pkgs.fetchCrate {
+      inherit version;
+      crateName = "diesel_cli_ext";
+      sha256 = "0zf98kydxgb9mc77x7r4d0vmkfzgi5h4h6n1dhpgq2if9ybyci0b";
+    };
+  };
+
+  doujinsea-backend = pkgs.rustPlatform.buildRustPackage rec {
+    name = "doujinsea-backend";
+    src = ./.;
+    cargoLock = { lockFile = ./Cargo.lock; };
+    buildInputs = with pkgs; [ sqlite ];
+    nativeBuildInputs = with pkgs.buildPackages; [
+      sqlite
+      rustfmt
+      (diesel-cli.override { postgresqlSupport = false; mysqlSupport = false; })
+      diesel-cli-ext
+    ];
+    configurePhase = "bash scripts/update-schema-models.bash";
+  };
+}
diff --git a/scripts/boostrap-steam-db.bash b/scripts/boostrap-steam-db.bash
new file mode 100644
index 0000000..ca06dd2
--- /dev/null
+++ b/scripts/boostrap-steam-db.bash
@@ -0,0 +1,22 @@
+#!/bin/bash
+set -euo pipefail
+tmp="$(mktemp -d)"
+trap 'rm -rf -- "$tmp"' EXIT
+
+# deps
+hash sqlite3 rq
+
+# first generate clean db
+bash update-schema-models.bash
+
+for db in kanta; do
+   rm -f "$db".sqlite{,-shm,-wal}
+   sqlite3 "$db".sqlite < db/"$db".sql
+   sqlite3 "$db".sqlite <<'EOF'
+insert into engines (id, name) values (0, "generic");
+insert into roles (id, name) values (0, "developer");
+EOF
+   jq -r -f scripts/jq/transform-creators.jq steam-dataset-messy/steam.json | sqlite3 "$db".sqlite
+   jq -r -f scripts/jq/transform-products.jq steam-dataset-messy/steam.json | sqlite3 "$db".sqlite
+   jq -r -f scripts/jq/transform-product-creators.jq steam-dataset-messy/steam.json | sqlite3 "$db".sqlite
+done
diff --git a/scripts/jq/transform-creators.jq b/scripts/jq/transform-creators.jq
new file mode 100644
index 0000000..90b47d2
--- /dev/null
+++ b/scripts/jq/transform-creators.jq
@@ -0,0 +1 @@
+[.[].developers] | flatten | unique | .[] | "insert into creators (name) values ('\(. | gsub("'"; "''"))');"
diff --git a/scripts/jq/transform-product-creators.jq b/scripts/jq/transform-product-creators.jq
new file mode 100644
index 0000000..1a1bef7
--- /dev/null
+++ b/scripts/jq/transform-product-creators.jq
@@ -0,0 +1,6 @@
+.[] | select(has("steam_appid") and .type=="game") |
+    "insert into product_creators (creator, product, role) values (
+        (select id from creators where name = '\(.developers[0]? // "" | gsub("'"; "''"))'),
+        \(.steam_appid),
+        0
+    );"
diff --git a/scripts/jq/transform-products.jq b/scripts/jq/transform-products.jq
new file mode 100644
index 0000000..48f51e7
--- /dev/null
+++ b/scripts/jq/transform-products.jq
@@ -0,0 +1,11 @@
+.[] | select(has("steam_appid") and .type=="game") |
+    "insert into products (id, engine, platforms, price, title, body, short, header) values (
+        \(.steam_appid),
+        0,
+        0,
+        \(.price_overview.final? // 0),
+        '\(.name? // "no-name" | gsub("'"; "''"))',
+        '\(.detailed_description? // "no-desc" | gsub("'"; "''"))',
+        '\(.short_description? // "no-short-desc" | gsub("'"; "''"))',
+        '\(.header_image? // "https://waifu.cloudef.pw/loading.png" | gsub("'"; "''"))'
+    );"
diff --git a/scripts/update-schema-models.bash b/scripts/update-schema-models.bash
new file mode 100644
index 0000000..f91f043
--- /dev/null
+++ b/scripts/update-schema-models.bash
@@ -0,0 +1,95 @@
+#!/bin/bash
+set -euo pipefail
+tmp="$(mktemp -d)"
+trap 'rm -rf -- "$tmp"' EXIT
+
+# deps
+hash sqlite3 diesel diesel_ext rustfmt
+
+gen_route() {
+   local upper="$1"
+   local lower="$(sed 's/[[:upper:]]/_&/g;s/^_//' <<<"$upper" | tr '[:upper:]' '[:lower:]')"
+cat <<EOF
+
+#[put("/$lower", data = "<input>")]
+async fn put_$lower(db: Db, input: InOut<$upper>) -> Result<Created<InOut<$upper>>> {
+   let data = input.clone();
+   db.run(move |conn| {
+        diesel::insert_into(${lower}s::table)
+            .values(&data)
+            .execute(conn)
+    })
+    .await?;
+    Ok(Created::new("/").body(input))
+}
+
+#[get("/$lower/<id>")]
+async fn get_$lower(db: Db, id: i64) -> Option<InOut<$upper>> {
+    db.run(move |conn| ${lower}s::table.filter(${lower}s::id.eq(id)).first(conn))
+        .await
+        .map(InOut)
+        .ok()
+}
+EOF
+}
+
+gen_routes() {
+   local db="$1"
+cat <<EOF
+use crate::diesel::ExpressionMethods;
+use crate::diesel::QueryDsl;
+use crate::diesel::RunQueryDsl;
+use rocket::Rocket;
+use rocket::response::{status::Created, Debug};
+use rocket::serde::json::Json as InOut;
+// use rocket::serde::msgpack::MsgPack as InOut;
+use rocket_sync_db_pools::database;
+
+#[database("$db")]
+pub struct Db(diesel::SqliteConnection);
+
+type Result<T, E = Debug<diesel::result::Error>> = std::result::Result<T, E>;
+EOF
+
+   grep 'pub struct' "$tmp"/model.rs | grep -v 'User' | while read -r _ _ name _; do
+      gen_route "$name"
+   done
+
+cat <<EOF
+
+pub fn mount_at(rocket: Rocket<rocket::Build>, path: &str) -> Rocket<rocket::Build> {
+   rocket.attach(Db::fairing()).mount(path, routes![
+EOF
+
+   grep 'pub struct' "$tmp"/model.rs | grep -v 'User' | while read -r _ _ name _; do
+      local lower="$(sed 's/[[:upper:]]/_&/g;s/^_//' <<<"$name" | tr '[:upper:]' '[:lower:]')"
+      printf '      %s,\n' "put_$lower"
+      printf '      %s,\n' "get_$lower"
+   done
+
+cat <<EOF
+   ])
+}
+EOF
+}
+
+for db in kanta; do
+   printf 'import: %s\n' db/"$db".sql
+   rm -f "$tmp"/tmp.sqlite
+   sqlite3 "$tmp"/tmp.sqlite < db/"$db".sql
+   diesel print-schema --database-url "$tmp"/tmp.sqlite |\
+      sed 's/Integer/BigInt/g' |\
+      sed 's/created_at -> Timestamp/created_at -> Nullable<Timestamp>/g' |\
+      sed 's/id -> BigInt/id -> Nullable<BigInt>/g' |\
+      sed 's/meta -> Text/meta -> Nullable<Text>/g' \
+      > "$tmp"/schema.rs
+   diesel_ext -s "$tmp"/schema.rs -m \
+      -d 'Serialize, Deserialize, Queryable, Insertable, Clone, Debug' \
+      -I 'rocket::serde::{Serialize, Deserialize}' |\
+      awk '/#\[derive/{print;print "#[serde(crate = \"rocket::serde\")]";next}1' \
+      > "$tmp"/model.rs
+   gen_routes "$db" | cat "$tmp"/schema.rs "$tmp"/model.rs - |\
+      grep -v '^// Generated by diesel_ext' |\
+      grep -v '^#!' > src/"$db".rs
+   rustfmt --edition 2021 src/"$db".rs
+done
diff --git a/src/cors.rs b/src/cors.rs
new file mode 100644
index 0000000..700e4bb
--- /dev/null
+++ b/src/cors.rs
@@ -0,0 +1,25 @@
+use rocket::fairing::{Fairing, Info, Kind};
+use rocket::http::Header;
+use rocket::{Request, Response};
+
+pub struct CORS;
+
+#[rocket::async_trait]
+impl Fairing for CORS {
+    fn info(&self) -> Info {
+        Info {
+            name: "Add CORS headers to responses",
+            kind: Kind::Response,
+        }
+    }
+
+    async fn on_response<'r>(&self, _req: &'r Request<'_>, response: &mut Response<'r>) {
+        response.set_header(Header::new("Access-Control-Allow-Origin", "*"));
+        response.set_header(Header::new(
+            "Access-Control-Allow-Methods",
+            "POST, GET, PATCH, OPTIONS",
+        ));
+        response.set_header(Header::new("Access-Control-Allow-Headers", "*"));
+        response.set_header(Header::new("Access-Control-Allow-Credentials", "true"));
+    }
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..f28d6df
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,63 @@
+#[macro_use]
+extern crate rocket;
+#[macro_use]
+extern crate diesel;
+
+mod cors;
+mod kanta;
+mod pagination;
+use crate::diesel::QueryDsl;
+use crate::diesel::TextExpressionMethods;
+use crate::pagination::SortingAndPaging;
+use cors::CORS;
+use rocket::serde::json::Json as InOut;
+// use rocket::serde::msgpack::MsgPack as InOut;
+
+#[derive(FromForm)]
+struct ProductFilter {
+    prefix: Option<String>,
+    sort_by: Option<String>,
+    sort_direction: Option<String>,
+    page_num: Option<i64>,
+    page_size: Option<i64>,
+}
+
+#[get("/products?<filter..>")]
+async fn filter_products(
+    filter: ProductFilter,
+    db: kanta::Db,
+) -> Option<InOut<pagination::Page<kanta::Product>>> {
+    info!("prefix: {:?}", Some(filter.prefix.clone()));
+    db.run(move |conn| {
+        let mut query = kanta::products::table.into_boxed();
+        if let Some(i) = filter.prefix {
+            query = query.filter(kanta::products::title.like(format!("%{}%", i)));
+        }
+        query
+            .paginate(filter.page_num.unwrap_or(0))
+            .per_page(filter.page_size.unwrap_or(100))
+            .sort(
+                filter.sort_by.unwrap_or("created_at".to_string()),
+                filter.sort_direction.unwrap_or("".to_string()),
+            )
+            .load_and_count_items::<kanta::Product>(conn)
+    })
+    .await
+    .map(InOut)
+    .ok()
+}
+
+#[get("/")]
+async fn index() -> String {
+    "Server is running".to_string()
+}
+
+#[launch]
+fn rocket() -> _ {
+    kanta::mount_at(
+        rocket::build()
+            .attach(CORS)
+            .mount("/", routes![index, filter_products]),
+        "/",
+    )
+}
diff --git a/src/pagination.rs b/src/pagination.rs
new file mode 100644
index 0000000..961b079
--- /dev/null
+++ b/src/pagination.rs
@@ -0,0 +1,103 @@
+use diesel::prelude::*;
+use diesel::query_builder::*;
+use diesel::query_dsl::methods::LoadQuery;
+use diesel::sql_types::BigInt;
+use diesel::sqlite::Sqlite;
+use rocket::serde::Serialize;
+
+pub trait SortingAndPaging: Sized {
+    fn paginate(self, page: i64) -> SortedAndPaginated<Self>;
+}
+
+impl<T> SortingAndPaging for T {
+    fn paginate(self, page: i64) -> SortedAndPaginated<Self> {
+        SortedAndPaginated {
+            query: self,
+            sort_by: "".to_string(),
+            sort_direction: "".to_string(),
+            per_page: 100,
+            page,
+        }
+    }
+}
+
+#[derive(Serialize)]
+#[serde(crate = "rocket::serde")]
+pub struct Page<T> {
+    pub data: Vec<T>,
+    pub page_num: i64,
+    pub page_size: i64,
+    pub total_elements: i64,
+}
+
+impl<T> Page<T> {
+    pub fn new(data: Vec<T>, page_num: i64, page_size: i64, total_elements: i64) -> Page<T> {
+        Page {
+            data,
+            page_num,
+            page_size,
+            total_elements,
+        }
+    }
+}
+
+#[derive(Debug, Clone, QueryId)]
+pub struct SortedAndPaginated<T> {
+    query: T,
+    sort_by: String,
+    sort_direction: String,
+    page: i64,
+    per_page: i64,
+}
+
+impl<T> SortedAndPaginated<T> {
+    pub fn per_page(self, per_page: i64) -> Self {
+        SortedAndPaginated { per_page, ..self }
+    }
+
+    pub fn sort(self, sort_by: String, sort_direction: String) -> Self {
+        SortedAndPaginated {
+            sort_by,
+            sort_direction,
+            ..self
+        }
+    }
+
+    pub fn load_and_count_items<U>(self, conn: &SqliteConnection) -> QueryResult<Page<U>>
+    where
+        Self: LoadQuery<SqliteConnection, (U, i64)>,
+    {
+        let page = self.page;
+        let per_page = self.per_page;
+        let results = self.load::<(U, i64)>(conn)?;
+        let total = results.get(0).map(|x| x.1).unwrap_or(0);
+        let records = results.into_iter().map(|x| x.0).collect();
+        Ok(Page::new(records, page, per_page, total))
+    }
+}
+
+impl<T: Query> Query for SortedAndPaginated<T> {
+    type SqlType = (T::SqlType, BigInt);
+}
+
+impl<T> RunQueryDsl<SqliteConnection> for SortedAndPaginated<T> {}
+
+impl<T> QueryFragment<Sqlite> for SortedAndPaginated<T>
+where
+    T: QueryFragment<Sqlite>,
+{
+    fn walk_ast(&self, mut out: AstPass<Sqlite>) -> QueryResult<()> {
+        out.push_sql("SELECT *, COUNT(*) OVER () FROM (");
+        self.query.walk_ast(out.reborrow())?;
+        out.push_sql(") t ");
+        if &self.sort_by.as_str().len() > &0 {
+            out.push_sql(format!(" ORDER BY {} {}", &self.sort_by, &self.sort_direction).as_str());
+        }
+        out.push_sql(" LIMIT ");
+        out.push_bind_param::<BigInt, _>(&self.per_page)?;
+        out.push_sql(" OFFSET ");
+        let offset = (self.page - 1) * self.per_page;
+        out.push_bind_param::<BigInt, _>(&offset)?;
+        Ok(())
+    }
+}