daca8def57
* Pre: unused import in translate.rs. * Part 2: take a dependency on rusqlite for query arguments. * Part 1: flatten V2 schema into V1. Add UUID and URI. Bump expected ident and bootstrap datom count in tests. * Part 5: parse edn::Value::Uuid. * Part 3: extend ValueType and TypedValue to include Uuid. * Part 4: add Uuid to query arguments. * Part 6: extend db to support Uuid. * Part 8: add a tx-parser test for #f NaN and #uuid. * Part 7: parse and algebrize UUIDs in queries. * Part 1: parse #inst in EDN and throughout query engine. * Part 3: handle instants in db. * Part 2: instants never matches integers in queries. * Part 4: use DateTime for tx_instants. * Add a test for adding and querying UUIDs and instants. * Review comments.
103 lines
2.7 KiB
Rust
103 lines
2.7 KiB
Rust
// Copyright 2016 Mozilla
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
|
|
// this file except in compliance with the License. You may obtain a copy of the
|
|
// License at http://www.apache.org/licenses/LICENSE-2.0
|
|
// Unless required by applicable law or agreed to in writing, software distributed
|
|
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
|
// CONDITIONS OF ANY KIND, either express or implied. See the License for the
|
|
// specific language governing permissions and limitations under the License.
|
|
|
|
#[macro_use]
|
|
extern crate error_chain;
|
|
extern crate itertools;
|
|
|
|
#[macro_use]
|
|
extern crate lazy_static;
|
|
extern crate rusqlite;
|
|
extern crate tabwriter;
|
|
extern crate time;
|
|
|
|
#[macro_use]
|
|
extern crate edn;
|
|
extern crate mentat_core;
|
|
extern crate mentat_tx;
|
|
extern crate mentat_tx_parser;
|
|
|
|
use std::iter::repeat;
|
|
|
|
use itertools::Itertools;
|
|
|
|
use mentat_core::{
|
|
DateTime,
|
|
UTC,
|
|
};
|
|
|
|
pub use errors::{Error, ErrorKind, ResultExt, Result};
|
|
|
|
pub mod db;
|
|
mod bootstrap;
|
|
pub mod debug;
|
|
mod add_retract_alter_set;
|
|
mod entids;
|
|
pub mod errors;
|
|
mod metadata;
|
|
mod schema;
|
|
mod types;
|
|
mod internal_types;
|
|
mod upsert_resolution;
|
|
mod tx;
|
|
|
|
pub use db::{
|
|
TypedSQLValue,
|
|
new_connection,
|
|
};
|
|
|
|
pub use tx::transact;
|
|
pub use types::{
|
|
DB,
|
|
PartitionMap,
|
|
TxReport,
|
|
};
|
|
|
|
use edn::symbols;
|
|
|
|
pub fn to_namespaced_keyword(s: &str) -> Result<symbols::NamespacedKeyword> {
|
|
let splits = [':', '/'];
|
|
let mut i = s.split(&splits[..]);
|
|
let nsk = match (i.next(), i.next(), i.next(), i.next()) {
|
|
(Some(""), Some(namespace), Some(name), None) => Some(symbols::NamespacedKeyword::new(namespace, name)),
|
|
_ => None,
|
|
};
|
|
|
|
// TODO Use custom ErrorKind https://github.com/brson/error-chain/issues/117
|
|
nsk.ok_or(ErrorKind::NotYetImplemented(format!("InvalidNamespacedKeyword: {}", s)).into())
|
|
}
|
|
|
|
/// Prepare an SQL `VALUES` block, like (?, ?, ?), (?, ?, ?).
|
|
///
|
|
/// The number of values per tuple determines `(?, ?, ?)`. The number of tuples determines `(...), (...)`.
|
|
///
|
|
/// # Examples
|
|
///
|
|
/// ```rust
|
|
/// # use mentat_db::{repeat_values};
|
|
/// assert_eq!(repeat_values(1, 3), "(?), (?), (?)".to_string());
|
|
/// assert_eq!(repeat_values(3, 1), "(?, ?, ?)".to_string());
|
|
/// assert_eq!(repeat_values(2, 2), "(?, ?), (?, ?)".to_string());
|
|
/// ```
|
|
pub fn repeat_values(values_per_tuple: usize, tuples: usize) -> String {
|
|
assert!(values_per_tuple >= 1);
|
|
assert!(tuples >= 1);
|
|
// Like "(?, ?, ?)".
|
|
let inner = format!("({})", repeat("?").take(values_per_tuple).join(", "));
|
|
// Like "(?, ?, ?), (?, ?, ?)".
|
|
let values: String = repeat(inner).take(tuples).join(", ");
|
|
values
|
|
}
|
|
|
|
/// Return the current time as a UTC `DateTime` instance.
|
|
pub fn now() -> DateTime<UTC> {
|
|
UTC::now()
|
|
}
|