Continue implementing new realization. Implementing Cursor. pre-commit disabled.

Signed-off-by: chandr-andr (Kiselev Aleksandr) <chandr@chandr.net>

Author: chandr-andr

src/driver/cursor.rs

@@ -512,3 +512,21 @@
 //         })
 //     }
 // }
+
+use std::sync::Arc;
+
+use crate::value_converter::PythonDTO;
+
+use super::transaction::Transaction;
+
+pub struct Cursor {
+    db_transaction: Arc<Transaction>,
+    querystring: String,
+    parameters: Vec<PythonDTO>,
+    cursor_name: String,
+    fetch_number: usize,
+    scroll: Option<bool>,
+    prepared: bool,
+    is_started: bool,
+    closed: bool,
+}

src/driver/transaction.rs

@@ -411,23 +411,23 @@ use std::{collections::HashSet, sync::Arc};
 //         slf
 //     }
 
-//     /// Return new instance of transaction.
-//     ///
-//     /// It's necessary because python requires it.
-//     ///
-//     /// # Errors
-//     /// May return Err Result if future returns error.
-//     pub fn __anext__(&self, py: Python<'_>) -> RustPSQLDriverPyResult<Option<PyObject>> {
-//         let transaction_clone = self.transaction.clone();
-//         let cursor_num = self.cursor_num;
-//         let future = rustdriver_future(py, async move {
-//             Ok(Transaction {
-//                 transaction: transaction_clone,
-//                 cursor_num,
-//             })
-//         });
-//         Ok(Some(future?.into()))
-//     }
+// /// Return new instance of transaction.
+// ///
+// /// It's necessary because python requires it.
+// ///
+// /// # Errors
+// /// May return Err Result if future returns error.
+// pub fn __anext__(&self, py: Python<'_>) -> RustPSQLDriverPyResult<Option<PyObject>> {
+//     let transaction_clone = self.transaction.clone();
+//     let cursor_num = self.cursor_num;
+//     let future = rustdriver_future(py, async move {
+//         Ok(Transaction {
+//             transaction: transaction_clone,
+//             cursor_num,
+//         })
+//     });
+//     Ok(Some(future?.into()))
+// }
 
 //     #[allow(clippy::missing_errors_doc)]
 //     #[allow(clippy::needless_pass_by_value)]
@@ -1689,7 +1689,7 @@ use std::{collections::HashSet, sync::Arc};
 // }
 
 #[pyclass]
-pub struct TransactionNew {
+pub struct Transaction {
     connection: Arc<Connection>,
     is_started: bool,
     is_done: bool,