Files
dbx/src-tauri/src/commands/schema.rs
T

511 lines
21 KiB
Rust

use std::sync::Arc;
use tauri::State;
use crate::commands::connection::{AppState, PoolKind};
use crate::db;
fn duckdb_query_tables(con: &duckdb::Connection) -> Result<Vec<db::TableInfo>, String> {
let mut stmt = con.prepare(
"SELECT table_name, table_type FROM information_schema.tables WHERE table_schema = 'main' ORDER BY table_name"
).map_err(|e| e.to_string())?;
let rows = stmt.query_map([], |row| {
Ok(db::TableInfo {
name: row.get::<_, String>(0)?,
table_type: row.get::<_, String>(1)?,
})
}).map_err(|e| e.to_string())?;
Ok(rows.filter_map(|r| r.ok()).collect())
}
fn duckdb_query_columns(con: &duckdb::Connection, table: &str) -> Result<Vec<db::ColumnInfo>, String> {
let mut pk_stmt = con.prepare(
"SELECT kcu.column_name
FROM information_schema.table_constraints tc
JOIN information_schema.key_column_usage kcu
ON tc.constraint_name = kcu.constraint_name
AND tc.table_schema = kcu.table_schema
AND tc.table_name = kcu.table_name
WHERE tc.constraint_type = 'PRIMARY KEY'
AND tc.table_schema = 'main'
AND tc.table_name = ?
ORDER BY kcu.ordinal_position"
).map_err(|e| e.to_string())?;
let pk_rows = pk_stmt.query_map([table], |row| row.get::<_, String>(0))
.map_err(|e| e.to_string())?;
let primary_keys: std::collections::HashSet<String> = pk_rows.filter_map(|r| r.ok()).collect();
let mut stmt = con.prepare(
"SELECT column_name, data_type, is_nullable, column_default
FROM information_schema.columns
WHERE table_schema = 'main' AND table_name = ?
ORDER BY ordinal_position"
).map_err(|e| e.to_string())?;
let rows = stmt.query_map([table], |row| {
let name = row.get::<_, String>(0)?;
Ok(db::ColumnInfo {
is_primary_key: primary_keys.contains(&name),
name,
data_type: row.get::<_, String>(1)?,
is_nullable: row.get::<_, String>(2).unwrap_or_default() == "YES",
column_default: row.get::<_, Option<String>>(3)?,
extra: None,
})
}).map_err(|e| e.to_string())?;
Ok(rows.filter_map(|r| r.ok()).collect())
}
fn extract_duckdb(connections: &std::collections::HashMap<String, PoolKind>, key: &str) -> Option<std::sync::Arc<std::sync::Mutex<duckdb::Connection>>> {
match connections.get(key)? {
PoolKind::DuckDb(con) => Some(con.clone()),
_ => None,
}
}
fn extract_sqlserver(connections: &std::collections::HashMap<String, PoolKind>, key: &str) -> Option<std::sync::Arc<tokio::sync::Mutex<db::sqlserver::SqlServerClient>>> {
match connections.get(key)? {
PoolKind::SqlServer(client) => Some(client.clone()),
_ => None,
}
}
fn extract_clickhouse(connections: &std::collections::HashMap<String, PoolKind>, key: &str) -> Option<db::clickhouse_driver::ChClient> {
match connections.get(key)? {
PoolKind::ClickHouse(client) => Some(client.clone()),
_ => None,
}
}
fn extract_oracle(connections: &std::collections::HashMap<String, PoolKind>, key: &str) -> Option<std::sync::Arc<tokio::sync::Mutex<db::oracle_driver::OracleClient>>> {
match connections.get(key)? {
PoolKind::Oracle(client) => Some(client.clone()),
_ => None,
}
}
#[tauri::command]
pub async fn list_databases(
state: State<'_, Arc<AppState>>,
connection_id: String,
) -> Result<Vec<db::DatabaseInfo>, String> {
{
let connections = state.connections.lock().await;
if let Some(client) = extract_clickhouse(&connections, &connection_id) {
drop(connections);
return db::clickhouse_driver::list_databases(&client).await;
}
if let Some(client) = extract_sqlserver(&connections, &connection_id) {
drop(connections);
let mut client = client.lock().await;
return db::sqlserver::list_databases(&mut client).await;
}
if let Some(client) = extract_oracle(&connections, &connection_id) {
drop(connections);
let client = client.lock().await;
return db::oracle_driver::list_databases(&*client).await;
}
}
let connections = state.connections.lock().await;
let pool = connections.get(&connection_id).ok_or("Connection not found")?;
match pool {
PoolKind::Mysql(p) => db::mysql::list_databases(p).await,
PoolKind::Postgres(p) => db::postgres::list_databases(p).await,
PoolKind::Sqlite(p) => db::sqlite::list_databases(p).await,
PoolKind::DuckDb(_) => Ok(vec![db::DatabaseInfo { name: "main".to_string() }]),
_ => Ok(vec![]),
}
}
#[tauri::command]
pub async fn list_schemas(
state: State<'_, Arc<AppState>>,
connection_id: String,
database: String,
) -> Result<Vec<String>, String> {
let pool_key = state.get_or_create_pool(&connection_id, Some(&database)).await?;
{
let connections = state.connections.lock().await;
if let Some(client) = extract_sqlserver(&connections, &pool_key) {
drop(connections);
let mut client = client.lock().await;
return db::sqlserver::list_schemas(&mut client).await;
}
if let Some(client) = extract_oracle(&connections, &pool_key) {
drop(connections);
let client = client.lock().await;
return db::oracle_driver::list_schemas(&*client).await;
}
}
let connections = state.connections.lock().await;
let pool = connections.get(&pool_key).ok_or("Pool not found")?;
match pool {
PoolKind::Postgres(p) => db::postgres::list_schemas(p).await,
_ => Ok(vec![]),
}
}
#[tauri::command]
pub async fn list_tables(
state: State<'_, Arc<AppState>>,
connection_id: String,
database: String,
schema: String,
) -> Result<Vec<db::TableInfo>, String> {
let pool_key = state.get_or_create_pool(&connection_id, Some(&database)).await?;
{
let connections = state.connections.lock().await;
if let Some(con) = extract_duckdb(&connections, &pool_key) {
drop(connections);
let con = con.lock().map_err(|e| e.to_string())?;
return duckdb_query_tables(&con);
}
if let Some(client) = extract_clickhouse(&connections, &pool_key) {
drop(connections);
return db::clickhouse_driver::list_tables(&client, &database).await;
}
if let Some(client) = extract_sqlserver(&connections, &pool_key) {
drop(connections);
let mut client = client.lock().await;
return db::sqlserver::list_tables(&mut client, &schema).await;
}
if let Some(client) = extract_oracle(&connections, &pool_key) {
drop(connections);
let client = client.lock().await;
return db::oracle_driver::list_tables(&*client, &schema).await;
}
}
let connections = state.connections.lock().await;
let pool = connections.get(&pool_key).ok_or("Pool not found")?;
match pool {
PoolKind::Mysql(p) => db::mysql::list_tables(p, &schema).await,
PoolKind::Postgres(p) => db::postgres::list_tables(p, &schema).await,
PoolKind::Sqlite(p) => db::sqlite::list_tables(p, &schema).await,
_ => Ok(vec![]),
}
}
#[tauri::command]
pub async fn get_columns(
state: State<'_, Arc<AppState>>,
connection_id: String,
database: String,
schema: String,
table: String,
) -> Result<Vec<db::ColumnInfo>, String> {
let pool_key = state.get_or_create_pool(&connection_id, Some(&database)).await?;
{
let connections = state.connections.lock().await;
if let Some(con) = extract_duckdb(&connections, &pool_key) {
drop(connections);
let con = con.lock().map_err(|e| e.to_string())?;
return duckdb_query_columns(&con, &table);
}
if let Some(client) = extract_clickhouse(&connections, &pool_key) {
drop(connections);
return db::clickhouse_driver::get_columns(&client, &database, &table).await;
}
if let Some(client) = extract_sqlserver(&connections, &pool_key) {
drop(connections);
let mut client = client.lock().await;
return db::sqlserver::get_columns(&mut client, &schema, &table).await;
}
if let Some(client) = extract_oracle(&connections, &pool_key) {
drop(connections);
let client = client.lock().await;
return db::oracle_driver::get_columns(&*client, &schema, &table).await;
}
}
let connections = state.connections.lock().await;
let pool = connections.get(&pool_key).ok_or("Pool not found")?;
match pool {
PoolKind::Mysql(p) => db::mysql::get_columns(p, &schema, &table).await,
PoolKind::Postgres(p) => db::postgres::get_columns(p, &schema, &table).await,
PoolKind::Sqlite(p) => db::sqlite::get_columns(p, &schema, &table).await,
_ => Ok(vec![]),
}
}
#[tauri::command]
pub async fn list_indexes(
state: State<'_, Arc<AppState>>,
connection_id: String,
database: String,
schema: String,
table: String,
) -> Result<Vec<db::IndexInfo>, String> {
let pool_key = state.get_or_create_pool(&connection_id, Some(&database)).await?;
{
let connections = state.connections.lock().await;
if let Some(client) = extract_sqlserver(&connections, &pool_key) {
drop(connections);
let mut client = client.lock().await;
return db::sqlserver::list_indexes(&mut client, &schema, &table).await;
}
if let Some(client) = extract_oracle(&connections, &pool_key) {
drop(connections);
let client = client.lock().await;
return db::oracle_driver::list_indexes(&*client, &schema, &table).await;
}
}
let connections = state.connections.lock().await;
let pool = connections.get(&pool_key).ok_or("Pool not found")?;
match pool {
PoolKind::Mysql(p) => db::mysql::list_indexes(p, &schema, &table).await,
PoolKind::Postgres(p) => db::postgres::list_indexes(p, &schema, &table).await,
PoolKind::Sqlite(p) => db::sqlite::list_indexes(p, &schema, &table).await,
_ => Ok(vec![]),
}
}
#[tauri::command]
pub async fn list_foreign_keys(
state: State<'_, Arc<AppState>>,
connection_id: String,
database: String,
schema: String,
table: String,
) -> Result<Vec<db::ForeignKeyInfo>, String> {
let pool_key = state.get_or_create_pool(&connection_id, Some(&database)).await?;
{
let connections = state.connections.lock().await;
if let Some(client) = extract_sqlserver(&connections, &pool_key) {
drop(connections);
let mut client = client.lock().await;
return db::sqlserver::list_foreign_keys(&mut client, &schema, &table).await;
}
if let Some(client) = extract_oracle(&connections, &pool_key) {
drop(connections);
let client = client.lock().await;
return db::oracle_driver::list_foreign_keys(&*client, &schema, &table).await;
}
}
let connections = state.connections.lock().await;
let pool = connections.get(&pool_key).ok_or("Pool not found")?;
match pool {
PoolKind::Mysql(p) => db::mysql::list_foreign_keys(p, &schema, &table).await,
PoolKind::Postgres(p) => db::postgres::list_foreign_keys(p, &schema, &table).await,
PoolKind::Sqlite(p) => db::sqlite::list_foreign_keys(p, &schema, &table).await,
_ => Ok(vec![]),
}
}
#[tauri::command]
pub async fn list_triggers(
state: State<'_, Arc<AppState>>,
connection_id: String,
database: String,
schema: String,
table: String,
) -> Result<Vec<db::TriggerInfo>, String> {
let pool_key = state.get_or_create_pool(&connection_id, Some(&database)).await?;
{
let connections = state.connections.lock().await;
if let Some(client) = extract_sqlserver(&connections, &pool_key) {
drop(connections);
let mut client = client.lock().await;
return db::sqlserver::list_triggers(&mut client, &schema, &table).await;
}
if let Some(client) = extract_oracle(&connections, &pool_key) {
drop(connections);
let client = client.lock().await;
return db::oracle_driver::list_triggers(&*client, &schema, &table).await;
}
}
let connections = state.connections.lock().await;
let pool = connections.get(&pool_key).ok_or("Pool not found")?;
match pool {
PoolKind::Mysql(p) => db::mysql::list_triggers(p, &schema, &table).await,
PoolKind::Postgres(p) => db::postgres::list_triggers(p, &schema, &table).await,
PoolKind::Sqlite(p) => db::sqlite::list_triggers(p, &schema, &table).await,
_ => Ok(vec![]),
}
}
#[tauri::command]
pub async fn get_table_ddl(
state: State<'_, Arc<AppState>>,
connection_id: String,
database: String,
schema: String,
table: String,
) -> Result<String, String> {
let pool_key = state.get_or_create_pool(&connection_id, Some(&database)).await?;
{
let connections = state.connections.lock().await;
if let Some(con) = extract_duckdb(&connections, &pool_key) {
drop(connections);
let tbl = table.replace('\'', "''");
let con = con.lock().map_err(|e| e.to_string())?;
let mut stmt = con.prepare(&format!("SELECT sql FROM duckdb_tables() WHERE table_name = '{tbl}'"))
.map_err(|e| e.to_string())?;
let mut rows = stmt.query([]).map_err(|e| e.to_string())?;
if let Some(row) = rows.next().map_err(|e| e.to_string())? {
return row.get::<_, String>(0).map_err(|e| e.to_string());
}
return Err("Table not found".to_string());
}
if let Some(client) = extract_clickhouse(&connections, &pool_key) {
drop(connections);
let result = db::clickhouse_driver::execute_query(&client, &database, &format!("SHOW CREATE TABLE `{table}`")).await?;
return result.rows.first()
.and_then(|r| r.first())
.and_then(|v| v.as_str())
.map(|s| s.to_string())
.ok_or_else(|| "Table not found".to_string());
}
if let Some(client) = extract_sqlserver(&connections, &pool_key) {
drop(connections);
let mut client = client.lock().await;
return build_sqlserver_ddl(&mut client, &schema, &table).await;
}
if let Some(client) = extract_oracle(&connections, &pool_key) {
drop(connections);
let client = client.lock().await;
return build_oracle_ddl(&*client, &schema, &table).await;
}
}
let connections = state.connections.lock().await;
let pool = connections.get(&pool_key).ok_or("Pool not found")?;
match pool {
PoolKind::Mysql(p) => mysql_ddl(p, &table).await,
PoolKind::Postgres(p) => pg_ddl(p, &schema, &table).await,
PoolKind::Sqlite(p) => sqlite_ddl(p, &table).await,
_ => Err("DDL not supported for this database type".to_string()),
}
}
async fn mysql_ddl(pool: &sqlx::mysql::MySqlPool, table: &str) -> Result<String, String> {
use sqlx::Row;
let row: sqlx::mysql::MySqlRow = sqlx::query(&format!("SHOW CREATE TABLE `{}`", table.replace('`', "``")))
.fetch_one(pool).await.map_err(|e| e.to_string())?;
row.try_get::<String, _>(1)
.or_else(|_| row.try_get::<Vec<u8>, _>(1).map(|b| String::from_utf8_lossy(&b).to_string()))
.map_err(|e| e.to_string())
}
async fn sqlite_ddl(pool: &sqlx::sqlite::SqlitePool, table: &str) -> Result<String, String> {
use sqlx::Row;
let row: sqlx::sqlite::SqliteRow = sqlx::query("SELECT sql FROM sqlite_master WHERE type='table' AND name=?")
.bind(table)
.fetch_one(pool).await.map_err(|e| e.to_string())?;
row.try_get::<String, _>(0).map_err(|e| e.to_string())
}
async fn pg_ddl(pool: &sqlx::postgres::PgPool, schema: &str, table: &str) -> Result<String, String> {
let columns = db::postgres::get_columns(pool, schema, table).await?;
let indexes = db::postgres::list_indexes(pool, schema, table).await?;
let fkeys = db::postgres::list_foreign_keys(pool, schema, table).await?;
let mut ddl = format!("CREATE TABLE \"{schema}\".\"{table}\" (\n");
let col_lines: Vec<String> = columns.iter().map(|c| {
let mut line = format!(" \"{}\" {}", c.name, c.data_type);
if !c.is_nullable { line.push_str(" NOT NULL"); }
if let Some(ref def) = c.column_default { line.push_str(&format!(" DEFAULT {def}")); }
line
}).collect();
ddl.push_str(&col_lines.join(",\n"));
let pks: Vec<&str> = columns.iter().filter(|c| c.is_primary_key).map(|c| c.name.as_str()).collect();
if !pks.is_empty() {
ddl.push_str(&format!(",\n PRIMARY KEY ({})", pks.iter().map(|k| format!("\"{k}\"")).collect::<Vec<_>>().join(", ")));
}
for fk in &fkeys {
ddl.push_str(&format!(",\n CONSTRAINT \"{}\" FOREIGN KEY (\"{}\") REFERENCES \"{}\"(\"{}\")", fk.name, fk.column, fk.ref_table, fk.ref_column));
}
ddl.push_str("\n);\n");
for idx in &indexes {
if idx.is_primary { continue; }
let unique = if idx.is_unique { "UNIQUE " } else { "" };
let cols = idx.columns.iter().map(|c| format!("\"{c}\"")).collect::<Vec<_>>().join(", ");
ddl.push_str(&format!("\nCREATE {unique}INDEX \"{}\" ON \"{schema}\".\"{table}\" ({cols});", idx.name));
}
Ok(ddl)
}
async fn build_sqlserver_ddl(client: &mut db::sqlserver::SqlServerClient, schema: &str, table: &str) -> Result<String, String> {
let columns = db::sqlserver::get_columns(client, schema, table).await?;
let indexes = db::sqlserver::list_indexes(client, schema, table).await?;
let fkeys = db::sqlserver::list_foreign_keys(client, schema, table).await?;
let mut ddl = format!("CREATE TABLE [{schema}].[{table}] (\n");
let col_lines: Vec<String> = columns.iter().map(|c| {
let mut line = format!(" [{}] {}", c.name, c.data_type);
if !c.is_nullable { line.push_str(" NOT NULL"); }
if let Some(ref def) = c.column_default { line.push_str(&format!(" DEFAULT {def}")); }
line
}).collect();
ddl.push_str(&col_lines.join(",\n"));
let pks: Vec<&str> = columns.iter().filter(|c| c.is_primary_key).map(|c| c.name.as_str()).collect();
if !pks.is_empty() {
ddl.push_str(&format!(",\n PRIMARY KEY ({})", pks.iter().map(|k| format!("[{k}]")).collect::<Vec<_>>().join(", ")));
}
for fk in &fkeys {
ddl.push_str(&format!(",\n CONSTRAINT [{}] FOREIGN KEY ([{}]) REFERENCES [{}]([{}])", fk.name, fk.column, fk.ref_table, fk.ref_column));
}
ddl.push_str("\n);\n");
for idx in &indexes {
if idx.is_primary { continue; }
let unique = if idx.is_unique { "UNIQUE " } else { "" };
let cols = idx.columns.iter().map(|c| format!("[{c}]")).collect::<Vec<_>>().join(", ");
ddl.push_str(&format!("\nCREATE {unique}INDEX [{}] ON [{schema}].[{table}] ({cols});", idx.name));
}
Ok(ddl)
}
async fn build_oracle_ddl(client: &db::oracle_driver::OracleClient, schema: &str, table: &str) -> Result<String, String> {
let columns = db::oracle_driver::get_columns(client, schema, table).await?;
let indexes = db::oracle_driver::list_indexes(client, schema, table).await?;
let fkeys = db::oracle_driver::list_foreign_keys(client, schema, table).await?;
let mut ddl = format!("CREATE TABLE \"{schema}\".\"{table}\" (\n");
let col_lines: Vec<String> = columns.iter().map(|c| {
let mut line = format!(" \"{}\" {}", c.name, c.data_type);
if !c.is_nullable { line.push_str(" NOT NULL"); }
if let Some(ref def) = c.column_default { line.push_str(&format!(" DEFAULT {def}")); }
line
}).collect();
ddl.push_str(&col_lines.join(",\n"));
let pks: Vec<&str> = columns.iter().filter(|c| c.is_primary_key).map(|c| c.name.as_str()).collect();
if !pks.is_empty() {
ddl.push_str(&format!(",\n PRIMARY KEY ({})", pks.iter().map(|k| format!("\"{k}\"")).collect::<Vec<_>>().join(", ")));
}
for fk in &fkeys {
ddl.push_str(&format!(",\n CONSTRAINT \"{}\" FOREIGN KEY (\"{}\") REFERENCES \"{}\"(\"{}\")", fk.name, fk.column, fk.ref_table, fk.ref_column));
}
ddl.push_str("\n);\n");
for idx in &indexes {
if idx.is_primary { continue; }
let unique = if idx.is_unique { "UNIQUE " } else { "" };
let cols = idx.columns.iter().map(|c| format!("\"{c}\"")).collect::<Vec<_>>().join(", ");
ddl.push_str(&format!("\nCREATE {unique}INDEX \"{}\" ON \"{schema}\".\"{table}\" ({cols});", idx.name));
}
Ok(ddl)
}