[pymongo-todo] Todo in python with mongoDB

pymongo/.gitignore

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+.vscode/
+basic/

pymongo/README.md

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+# :pen: PyMongo Todo
+A simple command line todo app built in :snake: python with :heart: on MongoDB
+
+### :paperclip: Usage
+```python
+$ python todo.py
+```
+
+### :package: Pre-requisites
+- [MongoDB](https://docs.mongodb.com/manual/tutorial/install-mongodb-on-ubuntu/)
+- Python Packages
+    - pymongo
+    - datetime 
+
+> #### Note: 
+    - Make sure your Mongo Daemon is running on  http://127.0.0.1:27017
+    - It's up to you whether or not to create a **db** named _todo_ and **collection** named _todos_ in it.
+
+### :camera: Samples
+
+![basic](./media/basic.png)
+---
+![add](./media/add.png)
+---
+![show](./media/show.png)
+---
+![update](./media/update.png)
+---
+![delete](./media/delete.png)
+---
+
+author: @manasakalaga
+

pymongo/requirements.txt

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+astroid==2.3.3
+DateTime==4.3
+isort==4.3.21
+lazy-object-proxy==1.4.3
+mccabe==0.6.1
+pkg-resources==0.0.0
+pylint==2.4.4
+pymongo==3.10.1
+pytz==2019.3
+six==1.14.0
+typed-ast==1.4.1
+wrapt==1.11.2
+zope.interface==4.7.1

pymongo/todo.py

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+from pymongo import MongoClient
+import sys
+from datetime import datetime as dt
+
+client = MongoClient()
+db = client['todo']
+collection = db['todos']
+
+
+def _task_exists(task_name: str) -> bool:
+    if collection.find_one({'name': task_name}) is None:
+        return False
+    else:
+        return True
+
+
+def _add_task(task: dict):
+    '''
+    Takes in a task
+
+    ---
+    Arguments
+     - task 
+
+    Example:
+    task = {'created':<time>,
+            'name':<name of the task>,
+            'status': <done/undone>,
+            'completed':<time> }
+
+    '''
+    if not _task_exists(task_name=task['name']):
+        collection.insert_one(task)
+
+
+def _delete_all():
+    '''
+    Deletes all tasks in the database
+    '''
+    collection.delete_many({})
+
+
+def _del_task(task_name: str):
+    '''
+    Takes in task name and deletes the task
+
+    ---
+    Args:
+     - task_name
+    Returns:
+        None
+    '''
+    if _task_exists(task_name=task_name):
+        collection.delete_one({'name': task_name})
+
+
+def _update_task(task_name: str):
+    '''
+    Takes in task name and updates the task status to done
+
+    ---
+    Args:
+     - task_name
+    Returns:
+        None
+    '''
+    if _task_exists(task_name=task_name):
+        collection.find_one_and_update(
+            {'name': task_name}, {'$set': {'status': 'done', 'completed': dt.now()}})
+
+
+def _show(what: str):
+    '''
+    Takes in 'what' and displays list of tasks
+
+    ---
+    Args:
+    - which
+        - all
+        - done
+        - undone
+    Returns:
+        None 
+    '''
+    if what == 'all':
+        for i, task in enumerate(collection.find()):
+            print(f"{i+1} - {task['name']}, created at {task['created']}")
+    elif(what == 'done'):
+        for i, task in enumerate(collection.find({'status': 'done'})):
+            print(f"{i+1} - {task['name']}, completed at {task['completed']}")
+    elif(what == 'undone'):
+        for i, task in enumerate(collection.find({'status': 'not done'})):
+            print(f"{i+1} - {task['name']}, created at {task['created']}")
+
+
+def main():
+    while True:
+        c = input(
+            'Do what (add, delete/delete all, update, show <all/undone/done>, exit): ')
+        if c == 'add':
+            task = {}
+            task['name'] = input('Task: ')
+            task['created'] = dt.now()
+            task['status'] = 'not done'
+            task['completed'] = 'na'
+            _add_task(task)
+            print('---- All Tasks ----')
+            _show(what='all')
+        elif c == 'show all':
+            print('---- All Tasks ----')
+            _show(what='all')
+        elif c == 'show undone':
+            print('---- Undone Tasks ----')
+            _show(what='undone')
+        elif c == 'show done':
+            print('---- Completed Tasks ----')
+            _show(what='done')
+        elif c == 'update':
+            print('---- All Tasks ----')
+            _show(what='all')
+            which = input('Which Task: ')
+            _update_task(task_name=which)
+            print('---- Completed Tasks ----')
+            _show(what='done')
+        elif c == 'delete':
+            print('---- All Tasks ----')
+            _show(what='all')
+            which = input('Which Task: ')
+            _del_task(task_name=which)
+            print('---- Completed Tasks ----')
+            _show(what='all')
+        elif c == 'delete all':
+            _delete_all()
+        elif c == 'exit':
+            sys.exit("Ok Bye! :)")
+
+
+if __name__ == "__main__":
+    main()