datum hinzu fügen

terminwahl_back/migrations/20240131081825_Termin_erstellen.sql

@@ -0,0 +1,49 @@
+-- Add migration script here
+CREATE TABLE date (
+    id INTEGER PRIMARY KEY,
+    name TEXT NOT NULL,
+    subtitle TEXT NOT NULL,
+    start_time DATETIME NOT NULL,
+    end_time DATETIME NOT NULL
+);
+INSERT INTO date (id, name, subtitle, start_time, end_time)
+VALUES (
+        1,
+        'OS 2023',
+        '2023',
+        '2023-02-28 12:00:00',
+        '2023-02-28 18:00:00'
+    );
+-- Create a temporary table
+CREATE TEMPORARY TABLE temp_appointment_slots AS
+SELECT *
+FROM appointment_slots;
+DROP TABLE appointment_slots;
+-- Recreate the appointments table with the new column and foreign key constraint
+CREATE TABLE appointment_slots (
+    id INTEGER PRIMARY KEY,
+    start_time DATETIME NOT NULL,
+    end_time DATETIME NOT NULL,
+    date_id INTEGER DEFAULT 1 Not NULL,
+    -- Add the new column
+    FOREIGN KEY (date_id) REFERENCES date(id) -- Add the foreign key constraint
+);
+-- Insert data back into the new appointments table from the temporary table
+INSERT INTO appointment_slots
+SELECT *,
+    1
+FROM temp_appointment_slots;
+-- Drop the temporary table
+DROP TABLE temp_appointment_slots;
+CREATE TABLE teacher_dates (
+    teacher_id INTEGER NOT NULL,
+    date_id INTEGER NOT NULL,
+    PRIMARY KEY (teacher_id, date_id),
+    FOREIGN KEY (teacher_id) REFERENCES teachers(id),
+    FOREIGN KEY (date_id) REFERENCES date(id)
+);
+INSERT INTO teacher_dates (teacher_id, date_id)
+SELECT teachers.id AS teacher_id,
+    date.id AS date_id
+FROM teachers,
+    date;