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/* Copyright (c) 2016-2025 Li Jin <dragon-fly@qq.com>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
extern "C" {
fn db_exist(table_name: i64) -> i32;
fn db_exist_schema(table_name: i64, schema: i64) -> i32;
fn db_exec(sql: i64) -> i32;
fn db_transaction(query: i64) -> i32;
fn db_transaction_async(query: i64, func0: i32, stack0: i64);
fn db_query(sql: i64, with_columns: i32) -> i64;
fn db_query_with_params(sql: i64, params: i64, with_columns: i32) -> i64;
fn db_insert(table_name: i64, values: i64);
fn db_exec_with_records(sql: i64, values: i64) -> i32;
fn db_query_with_params_async(sql: i64, params: i64, with_columns: i32, func0: i32, stack0: i64);
fn db_insert_async(table_name: i64, values: i64, func0: i32, stack0: i64);
fn db_exec_async(sql: i64, values: i64, func0: i32, stack0: i64);
}
use crate::dora::IObject;
/// A struct that represents a database.
pub struct DB { }
impl DB {
/// Checks whether a table exists in the database.
///
/// # Arguments
///
/// * `table_name` - The name of the table to check.
///
/// # Returns
///
/// * `bool` - `true` if the table exists, `false` otherwise.
pub fn exist(table_name: &str) -> bool {
unsafe { return db_exist(crate::dora::from_string(table_name)) != 0; }
}
/// Checks whether a table exists in the database.
///
/// # Arguments
///
/// * `table_name` - The name of the table to check.
/// * `schema` - Optional. The name of the schema to check in.
///
/// # Returns
///
/// * `bool` - `true` if the table exists, `false` otherwise.
pub fn exist_schema(table_name: &str, schema: &str) -> bool {
unsafe { return db_exist_schema(crate::dora::from_string(table_name), crate::dora::from_string(schema)) != 0; }
}
/// Executes an SQL statement and returns the number of rows affected.
///
/// # Arguments
///
/// * `sql` - The SQL statement to execute.
///
/// # Returns
///
/// * `i32` - The number of rows affected by the statement.
pub fn exec(sql: &str) -> i32 {
unsafe { return db_exec(crate::dora::from_string(sql)); }
}
/// Executes a list of SQL statements as a single transaction.
///
/// # Arguments
///
/// * `query` - A list of SQL statements to execute.
///
/// # Returns
///
/// * `bool` - `true` if the transaction was successful, `false` otherwise.
pub fn transaction(query: crate::dora::DBQuery) -> bool {
unsafe { return db_transaction(query.raw()) != 0; }
}
/// Executes a list of SQL statements as a single transaction asynchronously.
///
/// # Arguments
///
/// * `sqls` - A list of SQL statements to execute.
/// * `callback` - A callback function that is invoked when the transaction is executed, receiving the result of the transaction.
///
/// # Returns
///
/// * `bool` - `true` if the transaction was successful, `false` otherwise.
pub fn transaction_async(query: crate::dora::DBQuery, mut callback: Box<dyn FnMut(bool)>) {
let mut stack0 = crate::dora::CallStack::new();
let stack_raw0 = stack0.raw();
let func_id0 = crate::dora::push_function(Box::new(move || {
callback(stack0.pop_bool().unwrap())
}));
unsafe { db_transaction_async(query.raw(), func_id0, stack_raw0); }
}
/// Executes an SQL query and returns the results as a list of rows.
///
/// # Arguments
///
/// * `sql` - The SQL statement to execute.
/// * `with_column` - Whether to include column names in the result.
///
/// # Returns
///
/// * `DBRecord` - A list of rows returned by the query.
pub fn query(sql: &str, with_columns: bool) -> crate::dora::DBRecord {
unsafe { return crate::dora::DBRecord::from(db_query(crate::dora::from_string(sql), if with_columns { 1 } else { 0 })); }
}
/// Executes an SQL query and returns the results as a list of rows.
///
/// # Arguments
///
/// * `sql` - The SQL statement to execute.
/// * `params` - A list of values to substitute into the SQL statement.
/// * `with_column` - Whether to include column names in the result.
///
/// # Returns
///
/// * `DBRecord` - A list of rows returned by the query.
pub fn query_with_params(sql: &str, params: &crate::dora::Array, with_columns: bool) -> crate::dora::DBRecord {
unsafe { return crate::dora::DBRecord::from(db_query_with_params(crate::dora::from_string(sql), params.raw(), if with_columns { 1 } else { 0 })); }
}
/// Inserts a row of data into a table within a transaction.
///
/// # Arguments
///
/// * `table_name` - The name of the table to insert into.
/// * `values` - The values to insert into the table.
///
/// # Returns
///
/// * `bool` - `true` if the insertion was successful, `false` otherwise.
pub fn insert(table_name: &str, values: crate::dora::DBParams) {
unsafe { db_insert(crate::dora::from_string(table_name), values.raw()); }
}
/// Executes an SQL statement and returns the number of rows affected.
///
/// # Arguments
///
/// * `sql` - The SQL statement to execute.
/// * `values` - Lists of values to substitute into the SQL statement.
///
/// # Returns
///
/// * `i32` - The number of rows affected by the statement.
pub fn exec_with_records(sql: &str, values: crate::dora::DBParams) -> i32 {
unsafe { return db_exec_with_records(crate::dora::from_string(sql), values.raw()); }
}
/// Executes an SQL query asynchronously and returns the results as a list of rows.
///
/// # Arguments
///
/// * `sql` - The SQL statement to execute.
/// * `params` - Optional. A list of values to substitute into the SQL statement.
/// * `with_column` - Optional. Whether to include column names in the result. Default is `false`.
/// * `callback` - A callback function that is invoked when the query is executed, receiving the results as a list of rows.
pub fn query_with_params_async(sql: &str, params: &crate::dora::Array, with_columns: bool, mut callback: Box<dyn FnMut(crate::dora::DBRecord)>) {
let mut stack0 = crate::dora::CallStack::new();
let stack_raw0 = stack0.raw();
let func_id0 = crate::dora::push_function(Box::new(move || {
callback(crate::dora::DBRecord::from(stack0.pop_i64().unwrap()))
}));
unsafe { db_query_with_params_async(crate::dora::from_string(sql), params.raw(), if with_columns { 1 } else { 0 }, func_id0, stack_raw0); }
}
/// Inserts a row of data into a table within a transaction asynchronously.
///
/// # Arguments
///
/// * `table_name` - The name of the table to insert into.
/// * `values` - The values to insert into the table.
/// * `callback` - A callback function that is invoked when the insertion is executed, receiving the result of the insertion.
pub fn insert_async(table_name: &str, values: crate::dora::DBParams, mut callback: Box<dyn FnMut(bool)>) {
let mut stack0 = crate::dora::CallStack::new();
let stack_raw0 = stack0.raw();
let func_id0 = crate::dora::push_function(Box::new(move || {
callback(stack0.pop_bool().unwrap())
}));
unsafe { db_insert_async(crate::dora::from_string(table_name), values.raw(), func_id0, stack_raw0); }
}
/// Executes an SQL statement with a list of values within a transaction asynchronously and returns the number of rows affected.
///
/// # Arguments
///
/// * `sql` - The SQL statement to execute.
/// * `values` - A list of values to substitute into the SQL statement.
/// * `callback` - A callback function that is invoked when the statement is executed, recieving the number of rows affected.
pub fn exec_async(sql: &str, values: crate::dora::DBParams, mut callback: Box<dyn FnMut(i64)>) {
let mut stack0 = crate::dora::CallStack::new();
let stack_raw0 = stack0.raw();
let func_id0 = crate::dora::push_function(Box::new(move || {
callback(stack0.pop_i64().unwrap())
}));
unsafe { db_exec_async(crate::dora::from_string(sql), values.raw(), func_id0, stack_raw0); }
}
}