1 files changed, 103 insertions, 0 deletions
diff --git a/todo/db/tasks.py b/todo/db/tasks.py
new file mode 100644
index 0000000..fc23bf0
--- /dev/null
+++ b/todo/db/tasks.py
@@ -0,0 +1,103 @@
+from sqlite3 import Cursor
+import time
+from typing import List
+
+from todo.model.task import Task, ValidTaskForm
+from todo.model.status import Status
+from todo.model import difficulty, priority, status
+
+def get(cursor: Cursor, s: Status) -> List[Task]:
+    cursor.execute(
+        " SELECT"
+        "   id,"
+        "   created_at,"
+        "   updated_at,"
+        "   name,"
+        "   duration,"
+        "   difficulty,"
+        "   priority,"
+        "   description"
+        " FROM"
+        "   tasks"
+        " WHERE"
+        "   status = ?",
+        (status.format(s),))
+
+    res = []
+
+    for task in cursor.fetchall():
+        res.append(Task(
+            id = task[0],
+            created_at = task[1],
+            updated_at = task[2],
+            name = task[3],
+            duration = task[4],
+            difficulty = difficulty.parse(task[5]),
+            priority = priority.parse(task[6]),
+            description = task[7]
+        ))
+
+    return res
+
+def insert(cursor: Cursor, s: Status, form: ValidTaskForm):
+    now = int(time.time())
+    cursor.execute(
+        " INSERT INTO tasks("
+        "   created_at,"
+        "   updated_at,"
+        "   name,"
+        "   duration,"
+        "   difficulty,"
+        "   priority,"
+        "   description,"
+        "   status"
+        " ) VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
+        (now, now, form.name, form.duration, difficulty.format(form.difficulty), priority.format(form.priority), form.description, status.format(s)))
+
+    return Task(
+        id = cursor.lastrowid,
+        created_at = now,
+        updated_at = now,
+        name = form.name,
+        duration = form.duration,
+        difficulty = form.difficulty,
+        priority = form.priority,
+        description = form.description
+    )
+
+def update(cursor: Cursor, task: Task, form: ValidTaskForm):
+    now = int(time.time())
+
+    cursor.execute(
+        " UPDATE tasks SET"
+        "   updated_at = ?,"
+        "   name = ?,"
+        "   duration = ?,"
+        "   difficulty = ?,"
+        "   priority = ?,"
+        "   description = ?"
+        " WHERE id = ?",
+        (now, form.name, form.duration, difficulty.format(form.difficulty), priority.format(form.priority), form.description, task.id))
+
+    return Task(
+        id = task.id,
+        created_at = task.created_at,
+        updated_at = now,
+        name = form.name,
+        duration = form.duration,
+        difficulty = form.difficulty,
+        priority = form.priority,
+        description = form.description
+    )
+
+def delete(cursor: Cursor, ids: List[int]):
+    if len(ids) >= 1:
+        cursor.execute(
+            "DELETE FROM tasks WHERE id IN (%s)" % ",".join("?"*len(ids)),
+            ids)
+
+def update_status(cursor: Cursor, ids: List[int], s: Status):
+    if len(ids) >= 1:
+        cursor.execute(
+            "UPDATE tasks SET status = ? WHERE id IN (%s)" % ",".join("?"*len(ids)),
+            [status.format(s)] + ids)