QueryBuilder.new

This commit is contained in:
Emily Toop 2018-03-26 18:31:56 +01:00
parent 9f30fe6295
commit 71470443e8
4 changed files with 820 additions and 0 deletions

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@ -28,6 +28,7 @@ rustc_version = "0.2"
[dependencies] [dependencies]
chrono = "0.4" chrono = "0.4"
error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" } error-chain = { git = "https://github.com/rnewman/error-chain", branch = "rnewman/sync" }
indexmap = "0.4"
lazy_static = "0.2" lazy_static = "0.2"
time = "0.1" time = "0.1"
uuid = "0.5" uuid = "0.5"

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@ -329,6 +329,91 @@ impl From<f64> for TypedValue {
} }
} }
pub trait TypedValueConverter {
fn as_entid(self) -> Option<Entid>;
fn as_kw(self) -> Option<Rc<NamespacedKeyword>>;
fn as_boolean(self) -> Option<bool>;
fn as_long(self) -> Option<i64>;
fn as_double(self) -> Option<f64>;
fn as_instant(self) -> Option<DateTime<Utc>>;
fn as_timestamp(self) -> Option<i64>;
fn as_string(self) -> Option<Rc<String>>;
fn as_uuid(self) -> Option<Uuid>;
fn as_uuid_string(self) -> Option<String>;
}
impl TypedValueConverter for TypedValue {
fn as_entid(self) -> Option<Entid> {
match self {
TypedValue::Ref(v) => Some(v),
_ => None,
}
}
fn as_kw(self) -> Option<Rc<NamespacedKeyword>> {
match self {
TypedValue::Keyword(v) => Some(v.to_owned()),
_ => None,
}
}
fn as_boolean(self) -> Option<bool> {
match self {
TypedValue::Boolean(v) => Some(v),
_ => None,
}
}
fn as_long(self) -> Option<i64> {
match self {
TypedValue::Long(v) => Some(v),
_ => None,
}
}
fn as_double(self) -> Option<f64> {
match self {
TypedValue::Double(v) => Some(v.into_inner()),
_ => None,
}
}
fn as_instant(self) -> Option<DateTime<Utc>> {
match self {
TypedValue::Instant(v) => Some(v),
_ => None,
}
}
fn as_timestamp(self) -> Option<i64> {
match self {
TypedValue::Instant(v) => Some(v.timestamp()),
_ => None,
}
}
fn as_string(self) -> Option<Rc<String>> {
match self {
TypedValue::String(ref v) => Some(v.to_owned()),
_ => None,
}
}
fn as_uuid(self) -> Option<Uuid> {
match self {
TypedValue::Uuid(v) => Some(v),
_ => None,
}
}
fn as_uuid_string(self) -> Option<String> {
match self {
TypedValue::Uuid(v) => Some(v.hyphenated().to_string()),
_ => None,
}
}
}
/// Type safe representation of the possible return values from SQLite's `typeof` /// Type safe representation of the possible return values from SQLite's `typeof`
#[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialOrd, PartialEq)] #[derive(Clone, Copy, Debug, Eq, Hash, Ord, PartialOrd, PartialEq)]
pub enum SQLTypeAffinity { pub enum SQLTypeAffinity {

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@ -13,6 +13,8 @@
#[macro_use] #[macro_use]
extern crate error_chain; extern crate error_chain;
extern crate indexmap;
#[macro_use] #[macro_use]
extern crate lazy_static; extern crate lazy_static;
@ -97,6 +99,7 @@ pub mod vocabulary;
pub mod conn; pub mod conn;
pub mod query; pub mod query;
pub mod entity_builder; pub mod entity_builder;
pub mod query_builder;
pub use query::{ pub use query::{
IntoResult, IntoResult,

731
src/query_builder.rs Normal file
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@ -0,0 +1,731 @@
// Copyright 2018 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]
use std::collections::{
BTreeMap,
};
use std::rc::Rc;
use indexmap::{
IndexMap
};
use indexmap;
use mentat_core::{
Entid,
NamespacedKeyword,
TypedValue,
TypedValueConverter,
ValueType,
};
use ::{
DateTime,
Queryable,
QueryInputs,
QueryOutput,
Store,
Uuid,
Utc,
Variable,
};
use errors::{
Result,
};
pub struct QueryBuilder<'a> {
sql: String,
values: BTreeMap<Variable, TypedValue>,
types: BTreeMap<Variable, ValueType>,
store: &'a mut Store,
}
impl<'a> QueryBuilder<'a> {
pub fn query<T>(store: &'a mut Store, sql: T) -> Result<QueryBuilder> where T: Into<String> {
Ok(QueryBuilder { sql: sql.into(), values: BTreeMap::new(), types: BTreeMap::new(), store })
}
pub fn bind_value<T>(mut self, var: &str, value: T) -> Self where T: Into<TypedValue> {
self.values.insert(Variable::from_valid_name(var), value.into());
self
}
pub fn bind_ref<T>(mut self, var: &str, value: T) -> Self where T: Into<Entid> {
self.values.insert(Variable::from_valid_name(var), TypedValue::Ref(value.into()));
self
}
pub fn bind_type(mut self, var: &str, value_type: ValueType) -> Self {
self.types.insert(Variable::from_valid_name(var), value_type);
self
}
pub fn execute(&mut self) -> Result<QueryOutput> {
let values = ::std::mem::replace(&mut self.values, Default::default());
let types = ::std::mem::replace(&mut self.types, Default::default());
let query_inputs = QueryInputs::new(types, values)?;
let read = self.store.begin_read()?;
read.q_once(&self.sql, query_inputs)
}
pub fn execute_scalar(mut self) -> Result<ScalarResult> {
let results = self.execute()?;
let scalar = ScalarResult(results.into_scalar()?);
Ok(scalar)
}
pub fn execute_coll(mut self) -> Result<CollResult> {
let results = self.execute()?;
let coll = CollResult(results.into_coll()?);
Ok(coll)
}
pub fn execute_tuple(mut self) -> Result<TupleResult> {
let results = self.execute()?;
let find_spec = results.spec.columns().map(|e| format!("{}", e)).collect();
let tuple = TupleResult::new(&find_spec, results.into_tuple()?.unwrap_or(vec![]));
Ok(tuple)
}
pub fn execute_rel(mut self) -> Result<RelResult> {
let results = self.execute()?;
let find_spec = results.spec.columns().map(|e| format!("{}", e)).collect();
let tuple = RelResult::new(find_spec, results.into_rel()?);
Ok(tuple)
}
}
pub trait VarResultsRow {
fn var_as_entid(&self, var: &str) -> Option<Entid>;
fn var_as_kw(&self, var: &str) -> Option<Rc<NamespacedKeyword>>;
fn var_as_boolean(&self, var: &str) -> Option<bool>;
fn var_as_long(&self, var: &str) -> Option<i64>;
fn var_as_double(&self, var: &str) -> Option<f64>;
fn var_as_instant(&self, var: &str) -> Option<DateTime<Utc>>;
fn var_as_timestamp(&self, var: &str) -> Option<i64>;
fn var_as_string(&self, var: &str) -> Option<Rc<String>>;
fn var_as_uuid(&self, var: &str) -> Option<Uuid>;
fn var_as_uuid_str(&self, var: &str) -> Option<String>;
}
pub trait ColResultsRow {
fn col_as_entid(&self, col: usize) -> Option<Entid>;
fn col_as_kw(&self, col: usize) -> Option<Rc<NamespacedKeyword>>;
fn col_as_boolean(&self, col: usize) -> Option<bool>;
fn col_as_long(&self, col: usize) -> Option<i64>;
fn col_as_double(&self, col: usize) -> Option<f64>;
fn col_as_instant(&self, col: usize) -> Option<DateTime<Utc>>;
fn col_as_timestamp(&self, col: usize) -> Option<i64>;
fn col_as_string(&self, col: usize) -> Option<Rc<String>>;
fn col_as_uuid(&self, col: usize) -> Option<Uuid>;
fn col_as_uuid_string(&self, col: usize) -> Option<String>;
}
pub struct ScalarResult(Option<TypedValue>);
impl TypedValueConverter for ScalarResult {
fn as_entid(mut self) -> Option<Entid> {
self.0.take().map_or(None, |t| t.as_entid())
}
fn as_kw(mut self) -> Option<Rc<NamespacedKeyword>> {
self.0.take().map_or(None, |t| t.as_kw())
}
fn as_boolean(mut self) -> Option<bool> {
self.0.take().map_or(None, |t| t.as_boolean())
}
fn as_long(mut self) -> Option<i64> {
self.0.take().map_or(None, |t| t.as_long())
}
fn as_double(mut self) -> Option<f64> {
self.0.take().map_or(None, |t| t.as_double())
}
fn as_instant(mut self) -> Option<DateTime<Utc>> {
self.0.take().map_or(None, |t| t.as_instant())
}
fn as_timestamp(mut self) -> Option<i64> {
self.0.take().map_or(None, |t| t.as_timestamp())
}
fn as_string(mut self) -> Option<Rc<String>> {
self.0.take().map_or(None, |t| t.as_string())
}
fn as_uuid(mut self) -> Option<Uuid> {
self.0.take().map_or(None, |t| t.as_uuid())
}
fn as_uuid_string(mut self) -> Option<String> {
self.0.take().map_or(None, |t| t.as_uuid_string())
}
}
pub struct CollResult(pub Vec<TypedValue>);
impl CollResult {
fn get_row(&self, row: usize) -> Option<TypedValue> {
self.0.get(row).map(|v| v.to_owned())
}
pub fn iter(&self) -> ::std::slice::Iter<TypedValue> {
self.0.iter()
}
pub fn len(&self) -> usize {
self.0.len()
}
}
impl ColResultsRow for CollResult {
fn col_as_entid(&self, row: usize) -> Option<Entid> {
self.get_row(row).map_or(None, |t| t.as_entid())
}
fn col_as_kw(&self, row: usize) -> Option<Rc<NamespacedKeyword>> {
self.get_row(row).map_or(None, |t| t.as_kw())
}
fn col_as_boolean(&self, row: usize) -> Option<bool> {
self.get_row(row).map_or(None, |t| t.as_boolean())
}
fn col_as_long(&self, row: usize) -> Option<i64> {
self.get_row(row).map_or(None, |t| t.as_long())
}
fn col_as_double(&self, row: usize) -> Option<f64> {
self.get_row(row).map_or(None, |t| t.as_double())
}
fn col_as_instant(&self, row: usize) -> Option<DateTime<Utc>> {
self.get_row(row).map_or(None, |t| t.as_instant())
}
fn col_as_timestamp(&self, row: usize) -> Option<i64> {
self.get_row(row).map_or(None, |t| t.as_timestamp())
}
fn col_as_string(&self, row: usize) -> Option<Rc<String>> {
self.get_row(row).map_or(None, |t| t.as_string())
}
fn col_as_uuid(&self, row: usize) -> Option<Uuid> {
self.get_row(row).map_or(None, |t| t.as_uuid())
}
fn col_as_uuid_string(&self, row: usize) -> Option<String> {
self.get_row(row).map_or(None, |t| t.as_uuid_string())
}
}
impl IntoIterator for CollResult {
type Item = TypedValue;
type IntoIter = ::std::vec::IntoIter<TypedValue>;
fn into_iter(self) -> Self::IntoIter {
self.0.into_iter()
}
}
pub struct TupleResult {
map: IndexMap<String, TypedValue>,
}
impl TupleResult {
pub fn new(spec: &Vec<String>, values: Vec<TypedValue>) -> TupleResult {
let mut map = IndexMap::new();
for (index, element) in spec.iter().enumerate() {
if let Some(value) = values.get(index).take() {
map.insert(element.clone(), value.to_owned());
}
}
TupleResult {map}
}
pub fn iter(&self) -> indexmap::map::Iter<String, TypedValue> {
self.map.iter()
}
fn get_value_for_var(&self, var: &str) -> Option<TypedValue> {
self.map.get(var).map(|v| v.to_owned())
}
fn get_value_for_column(&self, col: usize) -> Option<TypedValue> {
self.map.get_index(col).map(|(_k, v)| v.to_owned())
}
pub fn len(&self) -> usize {
self.map.len()
}
}
impl VarResultsRow for TupleResult {
fn var_as_entid(&self, var: &str) -> Option<Entid> {
self.get_value_for_var(var).map_or(None, |v| v.as_entid())
}
fn var_as_kw(&self, var: &str) -> Option<Rc<NamespacedKeyword>> {
self.get_value_for_var(var).map_or(None, |v| v.as_kw())
}
fn var_as_boolean(&self, var: &str) -> Option<bool> {
self.get_value_for_var(var).map_or(None, |v| v.as_boolean())
}
fn var_as_long(&self, var: &str) -> Option<i64> {
self.get_value_for_var(var).map_or(None, |v| v.as_long())
}
fn var_as_double(&self, var: &str) -> Option<f64> {
self.get_value_for_var(var).map_or(None, |v| v.as_double())
}
fn var_as_instant(&self, var: &str) -> Option<DateTime<Utc>> {
self.get_value_for_var(var).map_or(None, |v| v.as_instant())
}
fn var_as_timestamp(&self, var: &str) -> Option<i64> {
self.get_value_for_var(var).map_or(None, |v| v.as_timestamp())
}
fn var_as_string(&self, var: &str) -> Option<Rc<String>> {
self.get_value_for_var(var).map_or(None, |v| v.as_string())
}
fn var_as_uuid(&self, var: &str) -> Option<Uuid> {
self.get_value_for_var(var).map_or(None, |v| v.as_uuid())
}
fn var_as_uuid_str(&self, var: &str) -> Option<String> {
self.get_value_for_var(var).map_or(None, |v| v.as_uuid_string())
}
}
impl ColResultsRow for TupleResult {
fn col_as_entid(&self, col: usize) -> Option<Entid> {
self.get_value_for_column(col).map_or(None, |v| v.as_entid())
}
fn col_as_kw(&self, col: usize) -> Option<Rc<NamespacedKeyword>> {
self.get_value_for_column(col).map_or(None, |v| v.as_kw())
}
fn col_as_boolean(&self, col: usize) -> Option<bool> {
self.get_value_for_column(col).map_or(None, |v| v.as_boolean())
}
fn col_as_long(&self, col: usize) -> Option<i64> {
self.get_value_for_column(col).map_or(None, |v| v.as_long())
}
fn col_as_double(&self, col: usize) -> Option<f64> {
self.get_value_for_column(col).map_or(None, |v| v.as_double())
}
fn col_as_instant(&self, col: usize) -> Option<DateTime<Utc>> {
self.get_value_for_column(col).map_or(None, |v| v.as_instant())
}
fn col_as_timestamp(&self, col: usize) -> Option<i64> {
self.get_value_for_column(col).map_or(None, |v| v.as_timestamp())
}
fn col_as_string(&self, col: usize) -> Option<Rc<String>> {
self.get_value_for_column(col).map_or(None, |v| v.as_string())
}
fn col_as_uuid(&self, col: usize) -> Option<Uuid> {
self.get_value_for_column(col).map_or(None, |v| v.as_uuid())
}
fn col_as_uuid_string(&self, col: usize) -> Option<String> {
self.get_value_for_column(col).map_or(None, |v| v.as_uuid_string())
}
}
impl IntoIterator for TupleResult {
type Item = (String, TypedValue);
type IntoIter = indexmap::map::IntoIter<String, TypedValue>;
fn into_iter(self) -> Self::IntoIter {
self.map.into_iter()
}
}
pub struct RelResult {
rows: Vec<TupleResult>,
}
impl RelResult {
pub fn new(spec: Vec<String>, values: Vec<Vec<TypedValue>>) -> RelResult {
let res = values.into_iter().map(|v| TupleResult::new(&spec, v)).collect();
RelResult { rows: res }
}
pub fn iter(&self) -> ::std::slice::Iter<TupleResult> {
self.rows.iter()
}
pub fn len(&self) -> usize {
self.rows.len()
}
}
impl IntoIterator for RelResult {
type Item = TupleResult;
type IntoIter = ::std::vec::IntoIter<TupleResult>;
fn into_iter(self) -> Self::IntoIter {
self.rows.into_iter()
}
}
mod test {
use super::{
ColResultsRow,
QueryBuilder,
TypedValue,
TypedValueConverter,
Store,
VarResultsRow,
};
#[test]
fn test_scalar_query() {
let mut store = Store::open("").expect("store connection");
store.transact(r#"[
[:db/add "s" :db/ident :foo/boolean]
[:db/add "s" :db/valueType :db.type/boolean]
[:db/add "s" :db/cardinality :db.cardinality/one]
]"#).expect("successful transaction");
let report = store.transact(r#"[
[:db/add "u" :foo/boolean true]
[:db/add "p" :foo/boolean false]
]"#).expect("successful transaction");
let yes = report.tempids.get("u").expect("found it").clone();
let entid = QueryBuilder::query(&mut store, r#"[:find ?x .
:in ?v
:where [?x :foo/boolean ?v]]"#).expect("QueryBuilder")
.bind_value("?v", true)
.execute_scalar().expect("ScalarResult")
.as_entid();
assert_eq!(entid, Some(yes));
}
#[test]
fn test_coll_query() {
let mut store = Store::open("").expect("store connection");
store.transact(r#"[
[:db/add "s" :db/ident :foo/boolean]
[:db/add "s" :db/valueType :db.type/boolean]
[:db/add "s" :db/cardinality :db.cardinality/one]
[:db/add "t" :db/ident :foo/long]
[:db/add "t" :db/valueType :db.type/long]
[:db/add "t" :db/cardinality :db.cardinality/one]
]"#).expect("successful transaction");
let report = store.transact(r#"[
[:db/add "l" :foo/boolean true]
[:db/add "l" :foo/long 25]
[:db/add "m" :foo/boolean false]
[:db/add "m" :foo/long 26]
[:db/add "n" :foo/boolean true]
[:db/add "n" :foo/long 27]
[:db/add "p" :foo/boolean false]
[:db/add "p" :foo/long 24]
[:db/add "u" :foo/boolean true]
[:db/add "u" :foo/long 23]
]"#).expect("successful transaction");
let u_yes = report.tempids.get("u").expect("found it").clone();
let l_yes = report.tempids.get("l").expect("found it").clone();
let n_yes = report.tempids.get("n").expect("found it").clone();
let entids: Vec<i64> = QueryBuilder::query(&mut store, r#"[:find [?x ...]
:in ?v
:where [?x :foo/boolean ?v]]"#).expect("QueryBuilder")
.bind_value("?v", true)
.execute_coll().expect("CollResult")
.into_iter()
.map(|v| v.as_entid().expect("val"))
.collect();
assert_eq!(entids, vec![l_yes, n_yes, u_yes]);
}
#[test]
fn test_coll_query_by_row() {
let mut store = Store::open("").expect("store connection");
store.transact(r#"[
[:db/add "s" :db/ident :foo/boolean]
[:db/add "s" :db/valueType :db.type/boolean]
[:db/add "s" :db/cardinality :db.cardinality/one]
[:db/add "t" :db/ident :foo/long]
[:db/add "t" :db/valueType :db.type/long]
[:db/add "t" :db/cardinality :db.cardinality/one]
]"#).expect("successful transaction");
let report = store.transact(r#"[
[:db/add "l" :foo/boolean true]
[:db/add "l" :foo/long 25]
[:db/add "m" :foo/boolean false]
[:db/add "m" :foo/long 26]
[:db/add "n" :foo/boolean true]
[:db/add "n" :foo/long 27]
[:db/add "p" :foo/boolean false]
[:db/add "p" :foo/long 24]
[:db/add "u" :foo/boolean true]
[:db/add "u" :foo/long 23]
]"#).expect("successful transaction");
let n_yes = report.tempids.get("n").expect("found it").clone();
let entid = QueryBuilder::query(&mut store, r#"[:find [?x ...]
:in ?v
:where [?x :foo/boolean ?v]]"#).expect("QueryBuilder")
.bind_value("?v", true)
.execute_coll().expect("CollResult")
.col_as_entid(1).expect("entid");
assert_eq!(entid, n_yes);
}
#[test]
fn test_tuple_query_result_by_var() {
let mut store = Store::open("").expect("store connection");
store.transact(r#"[
[:db/add "s" :db/ident :foo/boolean]
[:db/add "s" :db/valueType :db.type/boolean]
[:db/add "s" :db/cardinality :db.cardinality/one]
[:db/add "t" :db/ident :foo/long]
[:db/add "t" :db/valueType :db.type/long]
[:db/add "t" :db/cardinality :db.cardinality/one]
]"#).expect("successful transaction");
let report = store.transact(r#"[
[:db/add "l" :foo/boolean true]
[:db/add "l" :foo/long 25]
[:db/add "m" :foo/boolean false]
[:db/add "m" :foo/long 26]
[:db/add "n" :foo/boolean true]
[:db/add "n" :foo/long 27]
[:db/add "p" :foo/boolean false]
[:db/add "p" :foo/long 24]
[:db/add "u" :foo/boolean true]
[:db/add "u" :foo/long 23]
]"#).expect("successful transaction");
let n_yes = report.tempids.get("n").expect("found it").clone();
let results = QueryBuilder::query(&mut store, r#"[:find [?x, ?i]
:in ?v ?i
:where [?x :foo/boolean ?v]
[?x :foo/long ?i]]"#).expect("QueryBuilder")
.bind_value("?v", true)
.bind_value("?i", 27)
.execute_tuple().expect("TupleResult");
let entid = results.var_as_entid("?x").expect("entid");
let long_val = results.var_as_long("?i").expect("long");
assert_eq!(entid, n_yes);
assert_eq!(long_val, 27);
}
#[test]
fn test_tuple_query_result_by_column() {
let mut store = Store::open("").expect("store connection");
store.transact(r#"[
[:db/add "s" :db/ident :foo/boolean]
[:db/add "s" :db/valueType :db.type/boolean]
[:db/add "s" :db/cardinality :db.cardinality/one]
[:db/add "t" :db/ident :foo/long]
[:db/add "t" :db/valueType :db.type/long]
[:db/add "t" :db/cardinality :db.cardinality/one]
]"#).expect("successful transaction");
let report = store.transact(r#"[
[:db/add "l" :foo/boolean true]
[:db/add "l" :foo/long 25]
[:db/add "m" :foo/boolean false]
[:db/add "m" :foo/long 26]
[:db/add "n" :foo/boolean true]
[:db/add "n" :foo/long 27]
[:db/add "p" :foo/boolean false]
[:db/add "p" :foo/long 24]
[:db/add "u" :foo/boolean true]
[:db/add "u" :foo/long 23]
]"#).expect("successful transaction");
let n_yes = report.tempids.get("n").expect("found it").clone();
let results = QueryBuilder::query(&mut store, r#"[:find [?x, ?i]
:in ?v ?i
:where [?x :foo/boolean ?v]
[?x :foo/long ?i]]"#).expect("QueryBuilder")
.bind_value("?v", true)
.bind_value("?i", 27)
.execute_tuple().expect("TupleResult");
let entid = results.col_as_entid(0).expect("entid");
let long_val = results.col_as_long(1).expect("long");
assert_eq!(entid, n_yes);
assert_eq!(long_val, 27);
}
#[test]
fn test_tuple_query_result_by_iter() {
let mut store = Store::open("").expect("store connection");
store.transact(r#"[
[:db/add "s" :db/ident :foo/boolean]
[:db/add "s" :db/valueType :db.type/boolean]
[:db/add "s" :db/cardinality :db.cardinality/one]
[:db/add "t" :db/ident :foo/long]
[:db/add "t" :db/valueType :db.type/long]
[:db/add "t" :db/cardinality :db.cardinality/one]
]"#).expect("successful transaction");
let report = store.transact(r#"[
[:db/add "l" :foo/boolean true]
[:db/add "l" :foo/long 25]
[:db/add "m" :foo/boolean false]
[:db/add "m" :foo/long 26]
[:db/add "n" :foo/boolean true]
[:db/add "n" :foo/long 27]
[:db/add "p" :foo/boolean false]
[:db/add "p" :foo/long 24]
[:db/add "u" :foo/boolean true]
[:db/add "u" :foo/long 23]
]"#).expect("successful transaction");
let n_yes = report.tempids.get("n").expect("found it").clone();
let results: Vec<TypedValue> = QueryBuilder::query(&mut store, r#"[:find [?x, ?i]
:in ?v ?i
:where [?x :foo/boolean ?v]
[?x :foo/long ?i]]"#).expect("QueryBuilder")
.bind_value("?v", true)
.bind_value("?i", 27)
.execute_tuple().expect("TupleResult")
.into_iter()
.map(|(_var, t)| t)
.collect();
let entid = TypedValue::Ref(n_yes.clone());
let long_val = TypedValue::Long(27);
assert_eq!(results, vec![entid, long_val]);
}
#[test]
fn test_rel_query_result() {
let mut store = Store::open("").expect("store connection");
store.transact(r#"[
[:db/add "s" :db/ident :foo/boolean]
[:db/add "s" :db/valueType :db.type/boolean]
[:db/add "s" :db/cardinality :db.cardinality/one]
[:db/add "t" :db/ident :foo/long]
[:db/add "t" :db/valueType :db.type/long]
[:db/add "t" :db/cardinality :db.cardinality/one]
]"#).expect("successful transaction");
let report = store.transact(r#"[
[:db/add "l" :foo/boolean true]
[:db/add "l" :foo/long 25]
[:db/add "m" :foo/boolean false]
[:db/add "m" :foo/long 26]
[:db/add "n" :foo/boolean true]
[:db/add "n" :foo/long 27]
]"#).expect("successful transaction");
let l_yes = report.tempids.get("l").expect("found it").clone();
let m_yes = report.tempids.get("m").expect("found it").clone();
let n_yes = report.tempids.get("n").expect("found it").clone();
#[derive(Debug, PartialEq)]
struct Res {
entid: i64,
boolean: bool,
long_val: i64,
};
let mut results: Vec<Res> = QueryBuilder::query(&mut store, r#"[:find ?x ?v ?i
:where [?x :foo/boolean ?v]
[?x :foo/long ?i]]"#).expect("QueryBuilder")
.execute_rel().expect("RelResult")
.into_iter()
.map(|row| {
Res {
entid: row.col_as_entid(0).expect("entid"),
boolean: row.var_as_boolean("?v").expect("boolean"),
long_val: row.var_as_long("?i").expect("long"),
}
})
.collect();
let res1 = results.pop().expect("res");
assert_eq!(res1, Res { entid: n_yes, boolean: true, long_val: 27 });
let res2 = results.pop().expect("res");
assert_eq!(res2, Res { entid: m_yes, boolean: false, long_val: 26 });
let res3 = results.pop().expect("res");
assert_eq!(res3, Res { entid: l_yes, boolean: true, long_val: 25 });
assert_eq!(results.pop(), None);
}
#[test]
fn test_bind_ref() {
let mut store = Store::open("").expect("store connection");
store.transact(r#"[
[:db/add "s" :db/ident :foo/boolean]
[:db/add "s" :db/valueType :db.type/boolean]
[:db/add "s" :db/cardinality :db.cardinality/one]
[:db/add "t" :db/ident :foo/long]
[:db/add "t" :db/valueType :db.type/long]
[:db/add "t" :db/cardinality :db.cardinality/one]
]"#).expect("successful transaction");
let report = store.transact(r#"[
[:db/add "l" :foo/boolean true]
[:db/add "l" :foo/long 25]
[:db/add "m" :foo/boolean false]
[:db/add "m" :foo/long 26]
[:db/add "n" :foo/boolean true]
[:db/add "n" :foo/long 27]
]"#).expect("successful transaction");
let l_yes = report.tempids.get("l").expect("found it").clone();
#[derive(Debug, PartialEq)]
struct Res {
entid: i64,
boolean: bool,
long_val: i64,
};
let results = QueryBuilder::query(&mut store, r#"[:find [?v ?i]
:in ?x
:where [?x :foo/boolean ?v]
[?x :foo/long ?i]]"#).expect("QueryBuilder")
.bind_ref("?x", l_yes)
.execute_tuple().expect("TupleResult");
assert_eq!(results.var_as_boolean("?v").expect("boolean"), true);
assert_eq!(results.var_as_long("?i").expect("long"), 25);
}
}