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// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT
#[cfg(feature = "sqlite")]
use std::fs::create_dir_all;
use indexmap::IndexMap;
use serde_json::Value as JsonValue;
#[cfg(any(feature = "sqlite", feature = "mysql", feature = "postgres"))]
use sqlx::{migrate::MigrateDatabase, Column, Executor, Pool, Row};
#[cfg(any(feature = "sqlite", feature = "mysql", feature = "postgres"))]
use tauri::Manager;
use tauri::{AppHandle, Runtime};
#[cfg(feature = "mysql")]
use sqlx::MySql;
#[cfg(feature = "postgres")]
use sqlx::Postgres;
#[cfg(feature = "sqlite")]
use sqlx::Sqlite;
use crate::LastInsertId;
pub enum DbPool {
#[cfg(feature = "sqlite")]
Sqlite(Pool<Sqlite>),
#[cfg(feature = "mysql")]
MySql(Pool<MySql>),
#[cfg(feature = "postgres")]
Postgres(Pool<Postgres>),
#[cfg(not(any(feature = "sqlite", feature = "mysql", feature = "postgres")))]
None,
}
// public methods
/* impl DbPool {
/// Get the inner Sqlite Pool. Returns None for MySql and Postgres pools.
#[cfg(feature = "sqlite")]
pub fn sqlite(&self) -> Option<&Pool<Sqlite>> {
match self {
DbPool::Sqlite(pool) => Some(pool),
_ => None,
}
}
/// Get the inner MySql Pool. Returns None for Sqlite and Postgres pools.
#[cfg(feature = "mysql")]
pub fn mysql(&self) -> Option<&Pool<MySql>> {
match self {
DbPool::MySql(pool) => Some(pool),
_ => None,
}
}
/// Get the inner Postgres Pool. Returns None for MySql and Sqlite pools.
#[cfg(feature = "postgres")]
pub fn postgres(&self) -> Option<&Pool<Postgres>> {
match self {
DbPool::Postgres(pool) => Some(pool),
_ => None,
}
}
} */
// private methods
impl DbPool {
pub(crate) async fn connect<R: Runtime>(
conn_url: &str,
_app: &AppHandle<R>,
) -> Result<Self, crate::Error> {
match conn_url
.split_once(':')
.ok_or_else(|| crate::Error::InvalidDbUrl(conn_url.to_string()))?
.0
{
#[cfg(feature = "sqlite")]
"sqlite" => {
let app_path = _app
.path()
.app_config_dir()
.expect("No App config path was found!");
create_dir_all(&app_path).expect("Couldn't create app config dir");
let conn_url = &path_mapper(app_path, conn_url);
if !Sqlite::database_exists(conn_url).await.unwrap_or(false) {
Sqlite::create_database(conn_url).await?;
}
Ok(Self::Sqlite(Pool::connect(conn_url).await?))
}
#[cfg(feature = "mysql")]
"mysql" => {
if !MySql::database_exists(conn_url).await.unwrap_or(false) {
MySql::create_database(conn_url).await?;
}
Ok(Self::MySql(Pool::connect(conn_url).await?))
}
#[cfg(feature = "postgres")]
"postgres" => {
if !Postgres::database_exists(conn_url).await.unwrap_or(false) {
Postgres::create_database(conn_url).await?;
}
Ok(Self::Postgres(Pool::connect(conn_url).await?))
}
#[cfg(not(any(feature = "sqlite", feature = "postgres", feature = "mysql")))]
_ => Err(crate::Error::InvalidDbUrl(format!(
"{conn_url} - No database driver enabled!"
))),
#[cfg(any(feature = "sqlite", feature = "postgres", feature = "mysql"))]
_ => Err(crate::Error::InvalidDbUrl(conn_url.to_string())),
}
}
pub(crate) async fn migrate(
&self,
_migrator: &sqlx::migrate::Migrator,
) -> Result<(), crate::Error> {
match self {
#[cfg(feature = "sqlite")]
DbPool::Sqlite(pool) => _migrator.run(pool).await?,
#[cfg(feature = "mysql")]
DbPool::MySql(pool) => _migrator.run(pool).await?,
#[cfg(feature = "postgres")]
DbPool::Postgres(pool) => _migrator.run(pool).await?,
#[cfg(not(any(feature = "sqlite", feature = "mysql", feature = "postgres")))]
DbPool::None => (),
}
Ok(())
}
pub(crate) async fn close(&self) {
match self {
#[cfg(feature = "sqlite")]
DbPool::Sqlite(pool) => pool.close().await,
#[cfg(feature = "mysql")]
DbPool::MySql(pool) => pool.close().await,
#[cfg(feature = "postgres")]
DbPool::Postgres(pool) => pool.close().await,
#[cfg(not(any(feature = "sqlite", feature = "mysql", feature = "postgres")))]
DbPool::None => (),
}
}
pub(crate) async fn execute(
&self,
_query: String,
_values: Vec<JsonValue>,
) -> Result<(u64, LastInsertId), crate::Error> {
Ok(match self {
#[cfg(feature = "sqlite")]
DbPool::Sqlite(pool) => {
let mut query = sqlx::query(&_query);
for value in _values {
if value.is_null() {
query = query.bind(None::<JsonValue>);
} else if value.is_string() {
query = query.bind(value.as_str().unwrap().to_owned())
} else if let Some(number) = value.as_number() {
query = query.bind(number.as_f64().unwrap_or_default())
} else {
query = query.bind(value);
}
}
let result = pool.execute(query).await?;
(
result.rows_affected(),
LastInsertId::Sqlite(result.last_insert_rowid()),
)
}
#[cfg(feature = "mysql")]
DbPool::MySql(pool) => {
let mut query = sqlx::query(&_query);
for value in _values {
if value.is_null() {
query = query.bind(None::<JsonValue>);
} else if value.is_string() {
query = query.bind(value.as_str().unwrap().to_owned())
} else if let Some(number) = value.as_number() {
query = query.bind(number.as_f64().unwrap_or_default())
} else {
query = query.bind(value);
}
}
let result = pool.execute(query).await?;
(
result.rows_affected(),
LastInsertId::MySql(result.last_insert_id()),
)
}
#[cfg(feature = "postgres")]
DbPool::Postgres(pool) => {
let mut query = sqlx::query(&_query);
for value in _values {
if value.is_null() {
query = query.bind(None::<JsonValue>);
} else if value.is_string() {
query = query.bind(value.as_str().unwrap().to_owned())
} else if let Some(number) = value.as_number() {
query = query.bind(number.as_f64().unwrap_or_default())
} else {
query = query.bind(value);
}
}
let result = pool.execute(query).await?;
(result.rows_affected(), LastInsertId::Postgres(()))
}
#[cfg(not(any(feature = "sqlite", feature = "mysql", feature = "postgres")))]
DbPool::None => (0, LastInsertId::None),
})
}
pub(crate) async fn select(
&self,
_query: String,
_values: Vec<JsonValue>,
) -> Result<Vec<IndexMap<String, JsonValue>>, crate::Error> {
Ok(match self {
#[cfg(feature = "sqlite")]
DbPool::Sqlite(pool) => {
let mut query = sqlx::query(&_query);
for value in _values {
if value.is_null() {
query = query.bind(None::<JsonValue>);
} else if value.is_string() {
query = query.bind(value.as_str().unwrap().to_owned())
} else if let Some(number) = value.as_number() {
query = query.bind(number.as_f64().unwrap_or_default())
} else {
query = query.bind(value);
}
}
let rows = pool.fetch_all(query).await?;
let mut values = Vec::new();
for row in rows {
let mut value = IndexMap::default();
for (i, column) in row.columns().iter().enumerate() {
let v = row.try_get_raw(i)?;
let v = crate::decode::sqlite::to_json(v)?;
value.insert(column.name().to_string(), v);
}
values.push(value);
}
values
}
#[cfg(feature = "mysql")]
DbPool::MySql(pool) => {
let mut query = sqlx::query(&_query);
for value in _values {
if value.is_null() {
query = query.bind(None::<JsonValue>);
} else if value.is_string() {
query = query.bind(value.as_str().unwrap().to_owned())
} else if let Some(number) = value.as_number() {
query = query.bind(number.as_f64().unwrap_or_default())
} else {
query = query.bind(value);
}
}
let rows = pool.fetch_all(query).await?;
let mut values = Vec::new();
for row in rows {
let mut value = IndexMap::default();
for (i, column) in row.columns().iter().enumerate() {
let v = row.try_get_raw(i)?;
let v = crate::decode::mysql::to_json(v)?;
value.insert(column.name().to_string(), v);
}
values.push(value);
}
values
}
#[cfg(feature = "postgres")]
DbPool::Postgres(pool) => {
let mut query = sqlx::query(&_query);
for value in _values {
if value.is_null() {
query = query.bind(None::<JsonValue>);
} else if value.is_string() {
query = query.bind(value.as_str().unwrap().to_owned())
} else if let Some(number) = value.as_number() {
query = query.bind(number.as_f64().unwrap_or_default())
} else {
query = query.bind(value);
}
}
let rows = pool.fetch_all(query).await?;
let mut values = Vec::new();
for row in rows {
let mut value = IndexMap::default();
for (i, column) in row.columns().iter().enumerate() {
let v = row.try_get_raw(i)?;
let v = crate::decode::postgres::to_json(v)?;
value.insert(column.name().to_string(), v);
}
values.push(value);
}
values
}
#[cfg(not(any(feature = "sqlite", feature = "mysql", feature = "postgres")))]
DbPool::None => Vec::new(),
})
}
}
#[cfg(feature = "sqlite")]
/// Maps the user supplied DB connection string to a connection string
/// with a fully qualified file path to the App's designed "app_path"
fn path_mapper(mut app_path: std::path::PathBuf, connection_string: &str) -> String {
app_path.push(
connection_string
.split_once(':')
.expect("Couldn't parse the connection string for DB!")
.1,
);
format!(
"sqlite:{}",
app_path
.to_str()
.expect("Problem creating fully qualified path to Database file!")
)
}
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