Remove generated file 'frontend.js'

[recipes.git] / backend / src / db.rs

diff --git a/backend/src/db.rs b/backend/src/db.rs
deleted file mode 100644 (file)
index 1d38a45..0000000
--- a/backend/src/db.rs
+++ /dev/null
@@ -1,136 +0,0 @@
-use crate::consts::SQL_FILENAME;\r
-\r
-use super::consts;\r
-\r
-use std::{fs::{self, File}, path::Path, io::Read};\r
-\r
-//use rusqlite::types::ToSql;\r
-//use rusqlite::{Connection, Result, NO_PARAMS};\r
-use r2d2::Pool;\r
-use r2d2_sqlite::SqliteConnectionManager;\r
-\r
-const CURRENT_DB_VERSION: u32 = 1;\r
-\r
-#[derive(Debug)]\r
-pub enum DBError {\r
-    SqliteError(rusqlite::Error),\r
-    R2d2Error(r2d2::Error),\r
-    UnsupportedVersion(u32),\r
-    Other(String),\r
-}\r
-\r
-pub struct Connection {\r
-    //con: rusqlite::Connection\r
-    pool: Pool<SqliteConnectionManager>\r
-}\r
-\r
-pub struct Recipe {\r
-    pub title: String,\r
-    pub id: i32,\r
-}\r
-\r
-impl std::convert::From<rusqlite::Error> for DBError  {\r
-    fn from(error: rusqlite::Error) -> Self {\r
-        DBError::SqliteError(error)\r
-    }\r
-}\r
-\r
-impl std::convert::From<r2d2::Error> for DBError  {\r
-    fn from(error: r2d2::Error) -> Self {\r
-        DBError::R2d2Error(error)\r
-    }\r
-}\r
-\r
-impl Connection {\r
-    pub fn new() -> Result<Connection, DBError> {\r
-\r
-        let data_dir = Path::new(consts::DB_DIRECTORY);\r
-\r
-        if !data_dir.exists() {\r
-            fs::DirBuilder::new().create(data_dir).unwrap();\r
-        }\r
-\r
-        let manager = SqliteConnectionManager::file(consts::DB_FILENAME);\r
-        let pool = r2d2::Pool::new(manager).unwrap();\r
-\r
-        let connection = Connection { pool };\r
-        connection.create_or_update()?;\r
-        Ok(connection)\r
-    }\r
-\r
-    /*\r
-     * Called after the connection has been established for creating or updating the database.\r
-     * The 'Version' table tracks the current state of the database.\r
-     */\r
-    fn create_or_update(self: &Self) -> Result<(), DBError> {\r
-        // let connection = Connection::new();\r
-        // let mut stmt = connection.sqlite_con.prepare("SELECT * FROM versions ORDER BY date").unwrap();\r
-        // let mut stmt = connection.sqlite_con.prepare("SELECT name FROM sqlite_master WHERE type='table' AND name='versions'").unwrap();\r
-\r
-        // Check the Database version.\r
-        let mut con = self.pool.get()?;\r
-        let tx = con.transaction()?;\r
-\r
-        // Version 0 corresponds to an empty database.\r
-        let mut version = {\r
-            match tx.query_row(\r
-                    "SELECT [name] FROM [sqlite_master] WHERE [type] = 'table' AND [name] = 'Version'",\r
-                        [],\r
-                        |row| row.get::<usize, String>(0)\r
-                    ) {\r
-                Ok(_) => tx.query_row("SELECT [version] FROM [Version]", [], |row| row.get(0)).unwrap_or_default(),\r
-                Err(_) => 0\r
-            }\r
-        };\r
-\r
-        while Connection::update_to_next_version(version, &tx)? {\r
-            version += 1;\r
-        }\r
-\r
-        tx.commit()?;\r
-\r
-        Ok(())\r
-    }\r
-\r
-    fn update_to_next_version(current_version: u32, tx: &rusqlite::Transaction) -> Result<bool, DBError> {\r
-        let next_version = current_version + 1;\r
-\r
-        if next_version <= CURRENT_DB_VERSION {\r
-            println!("Update to version {}...", next_version);\r
-        }\r
-\r
-        fn ok(updated: bool) -> Result<bool, DBError> {\r
-            if updated {\r
-                println!("Version updated");\r
-            }\r
-            Ok(updated)\r
-        }\r
-\r
-        match next_version {\r
-            1 => {\r
-                tx.execute_batch(&load_sql_file(next_version)?)?;\r
-\r
-                ok(true)\r
-            }\r
-\r
-            // Version 1 doesn't exist yet.\r
-            2 =>\r
-                ok(false),\r
-\r
-            v =>\r
-                Err(DBError::UnsupportedVersion(v)),\r
-        }\r
-    }\r
-\r
-    pub fn get_all_recipes() {\r
-\r
-    }\r
-}\r
-\r
-fn load_sql_file(version: u32) -> Result<String, DBError> {\r
-    let sql_file = SQL_FILENAME.replace("{VERSION}", &version.to_string());\r
-    let mut file = File::open(&sql_file).map_err(|err| DBError::Other(format!("Cannot open SQL file ({}): {}", &sql_file, err.to_string())))?;\r
-    let mut sql = String::new();\r
-    file.read_to_string(&mut sql).map_err(|err| DBError::Other(format!("Cannot read SQL file ({}) : {}", &sql_file, err.to_string())))?;\r
-    Ok(sql)\r
-}
\ No newline at end of file