From 6c2b4f2c58105d4b09278e512540a5e073d14b45 Mon Sep 17 00:00:00 2001
From: "Maxence G. de Montauzan" <maxence@gdemontauzan.fr>
Date: Wed, 11 Jul 2018 01:47:29 +0200
Subject: [PATCH] Use a current table + trigger

---
 action.py       | 22 +++++++++++++++++-----
 pits_schema.sql | 44 +++++++++++++++++++++++++++++++++++++++++++-
 project.py      |  5 +++--
 task.py         |  4 ++--
 4 files changed, 65 insertions(+), 10 deletions(-)

diff --git a/action.py b/action.py
index 88636b4..62967bd 100644
--- a/action.py
+++ b/action.py
@@ -14,7 +14,6 @@ class TypeAction(Enum):
     UPDATE = 'updated'
     MOVE = 'moved'
     DELETE = 'deleted'
-    ACTIVE = 'activated'
 
 class Action:
     def __init__(self, row):
@@ -42,8 +41,6 @@ def handle_action(args, last_action, conn):
 
         if taction == 'init':
             print('{} ({}): {}'.format(formated_date, username, message))
-        elif taction == TypeAction.ACTIVE.value:
-            print('{} ({}): {}'.format(formated_date, username, message))
         else:
             object_type = ''
             id_object = ''
@@ -76,11 +73,26 @@ def record_action(cursor, action_type, message, project_id = '', task_id = None,
 
     logging.debug('created action')
 
-def read_last_action(conn):
+def set_active(cursor, project_id = None, task_id = None, note_id = None):
+    query = 'UPDATE current SET {} = ? WHERE id = 0'
+
+    if project_id:
+        query = query.format('project_id')
+        obj_id = project_id
+    elif task_id:
+        query = query.format('task_id')
+        obj_id = task_id
+    elif note_id:
+        query = query.format('note_id')
+        obj_id = note_id
+
+    cursor.execute(query, (obj_id,))
+
+def read_current(conn):
     logging.info('> last_action')
     # query = 'SELECT * FROM action WHERE id = (SELECT MAX(id) FROM action'
     # query = 'SELECT project_id, task_id, note_id FROM action'
-    query = 'SELECT project_id, task_id, note_id FROM action ORDER BY id DESC LIMIT 1;'
+    query = 'SELECT project_id, task_id, note_id FROM current;'
 
     cursor = conn.cursor()
     cursor.execute(query)
diff --git a/pits_schema.sql b/pits_schema.sql
index dcaa4a2..8153b4d 100644
--- a/pits_schema.sql
+++ b/pits_schema.sql
@@ -61,4 +61,46 @@ CREATE TABLE action (
 CREATE TRIGGER action_insert_created_at AFTER INSERT ON action
 BEGIN
     UPDATE action SET created_at = strftime('%Y-%m-%d %H:%M:%S.%s', 'now', 'localtime') WHERE id = new.id;
-END
\ No newline at end of file
+END;
+
+CREATE TABLE current (
+    id         integer,
+    project_id integer,
+    task_id    integer,
+    note_id    integer
+);
+
+INSERT INTO current VALUES (0,0,0,0);
+-- Trigger after insert for current values
+CREATE TRIGGER current_project AFTER INSERT ON project
+BEGIN
+    UPDATE current SET project_id = new.id WHERE id = 0;
+END;
+
+CREATE TRIGGER current_task AFTER INSERT ON task
+BEGIN
+    UPDATE current SET task_id = new.id WHERE id = 0;
+END;
+
+CREATE TRIGGER current_note AFTER INSERT ON note
+BEGIN
+    UPDATE current SET note_id = new.id WHERE id = 0;
+END;
+
+-- Trigger after update for current values
+CREATE TRIGGER update_project AFTER UPDATE ON project
+BEGIN
+    UPDATE current SET project_id = new.id WHERE id = 0;
+END;
+
+CREATE TRIGGER update_task AFTER UPDATE ON task
+BEGIN
+    UPDATE current SET task_id = new.id WHERE id = 0;
+END;
+
+CREATE TRIGGER update_note AFTER UPDATE ON note
+BEGIN
+    UPDATE current SET note_id = new.id WHERE id = 0;
+END;
+
+
diff --git a/project.py b/project.py
index 26dc6ed..0c5135d 100644
--- a/project.py
+++ b/project.py
@@ -8,6 +8,7 @@ import logging
 import sys
 
 from action import record_action
+from action import set_active
 from action import TypeAction
 
 from args import get_string_arg
@@ -195,7 +196,7 @@ def view_project_set_active(project_id, last_action, conn):
         message = date + time + name
         print('   {} {:d}: ({}) [{}] [{}] {} ({} tasks)'.format('*' if last_action.task_id == row[0] else ' ',
             task_id, username, status, priority, message, nb_note))
-    record_action(cursor, TypeAction.ACTIVE, 'set active project ' + str(project_id),
-        project_id, last_action.task_id, last_action.note_id)
+
+    set_active(cursor, project_id=project_id)
 
     # TODO Add a -v option to see notes?
\ No newline at end of file
diff --git a/task.py b/task.py
index 2df94a9..1547768 100644
--- a/task.py
+++ b/task.py
@@ -9,6 +9,7 @@ import sys
 
 from action import record_action
 from action import TypeAction
+from action import set_active
 from args import get_string_arg
 from args import arg_number
 
@@ -263,8 +264,7 @@ def view_task_set_active(task_id, last_action, conn):
         note_id, username, message = row
         print('   {} {:d}: ({}) {}'.format('*' if last_action.note_id == row[0] else ' ',
             note_id, username, message))
-    record_action(cursor, TypeAction.ACTIVE, 'set active task ' + str(task_id),
-        last_action.project_id, last_action.task_id, last_action.note_id)
+    set_active(cursor, task_id=task_id)
 
 # $ pit t 11
 # * 11: (budd) a task (project: 1, status: in progress, priority: high, date: Apr 26, 2018, time: 5:00, 2 notes)