Add command to rename dataset

src/database.rs

@@ -124,14 +124,28 @@ pub fn delete_dataset(connection: &Connection, dataset: &str) -> sqlite::Result<
     let query = format!(
         r#"DELETE FROM datasets WHERE name = '{0}';
         DROP TABLE "{0}_players";
-        DROP TABLE "{0}_network";
-        DROP VIEW "{0}_view";"#,
+        DROP TABLE "{0}_network";"#,
         dataset
     );
 
     connection.execute(query)
 }
 
+pub fn rename_dataset(connection: &Connection, old: &str, new: &str) -> sqlite::Result<()> {
+    let query = format!(
+        r#"UPDATE datasets SET name = '{1}' WHERE name = '{0}';
+ALTER TABLE "{0}_players" RENAME TO "{1}_players";
+ALTER TABLE "{0}_network" RENAME TO "{1}_network";
+DROP INDEX "{0}_network_A";
+CREATE INDEX "{1}_network_A" ON "{1}_network" (player_A);
+DROP INDEX "{0}_network_B";
+CREATE INDEX "{1}_network_B" ON "{1}_network" (player_B);"#,
+        old, new
+    );
+
+    connection.execute(query)
+}
+
 pub fn new_dataset(
     connection: &Connection,
     dataset: &str,
@@ -172,18 +186,8 @@ CREATE TABLE "{0}_network" (
     FOREIGN KEY(player_B) REFERENCES "{0}_players"
         ON DELETE CASCADE
 ) STRICT;
-CREATE INDEX "{0}_network_A"
-    ON "{0}_network" (player_A);
-CREATE INDEX "{0}_network_B"
-    ON "{0}_network" (player_B);
-
-CREATE VIEW "{0}_view"
-    (player_A_id, player_B_id, player_A_name, player_B_name, advantage,
-    sets_A, sets_count_A, sets_B, sets_count_B, sets, sets_count) AS
-    SELECT players_A.id, players_B.id, players_A.name, players_B.name, advantage,
-        sets_A, sets_count_A, sets_B, sets_count_B, network.sets, network.sets_count FROM "{0}_network" network
-    INNER JOIN players players_A ON player_A = players_A.id
-    INNER JOIN players players_B ON player_B = players_B.id;"#,
+CREATE INDEX "{0}_network_A" ON "{0}_network" (player_A);
+CREATE INDEX "{0}_network_B" ON "{0}_network" (player_B);"#,
         dataset
     );
 

src/main.rs

@@ -1,4 +1,3 @@
-#![feature(binary_heap_as_slice)]
 #![feature(iterator_try_collect)]
 #![feature(extend_one)]
 
@@ -93,6 +92,11 @@ enum DatasetSC {
     New { name: Option<String> },
     #[command(about = "Delete a dataset")]
     Delete { name: Option<String> },
+    #[command(about = "Rename a dataset")]
+    Rename {
+        old: Option<String>,
+        new: Option<String>,
+    },
 }
 
 #[derive(Subcommand)]
@@ -115,6 +119,9 @@ fn main() {
         Subcommands::Dataset {
             subcommand: DatasetSC::Delete { name },
         } => dataset_delete(name),
+        Subcommands::Dataset {
+            subcommand: DatasetSC::Rename { old, new },
+        } => dataset_rename(old, new),
 
         Subcommands::Player {
             subcommand: PlayerSC::Info { player },
@@ -451,6 +458,23 @@ fn dataset_delete(name: Option<String>) {
     delete_dataset(&connection, &name).unwrap_or_else(|_| error("That dataset does not exist!", 1));
 }
 
+fn dataset_rename(old: Option<String>, new: Option<String>) {
+    let config_dir = dirs::config_dir().expect("Could not determine config directory");
+
+    let old = old.unwrap_or_else(|| {
+        print!("Dataset to rename: ");
+        read_string()
+    });
+    let new = new.unwrap_or_else(|| {
+        print!("Rename to: ");
+        read_string()
+    });
+
+    let connection =
+        open_datasets(&config_dir).unwrap_or_else(|_| error("Could not open datasets file", 2));
+    rename_dataset(&connection, &old, &new).unwrap();
+}
+
 // Players
 
 fn player_info(dataset: Option<String>, player: String) {