Created
March 24, 2022 21:56
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Simple todo app with saving data in json file
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| import json | |
| import sys | |
| class DataList: | |
| notes = [] | |
| @staticmethod | |
| def print(notes): | |
| """ | |
| print notes | |
| """ | |
| for note in notes: | |
| note.print() | |
| print("-----------------------------------------") | |
| @staticmethod | |
| def serialize(): | |
| data = [] | |
| for note in DataList.notes: | |
| data.append(note.serialize()) | |
| return data | |
| @staticmethod | |
| def deserialize(notes): | |
| data = [] | |
| for note in notes: | |
| data.append(Note(**note)) | |
| return data | |
| @staticmethod | |
| def write(): | |
| """ | |
| write data to data.json file (like a database) | |
| """ | |
| data = DataList.serialize() | |
| with open("data.json", "w+") as file: | |
| file.write(json.dumps(data)) | |
| @staticmethod | |
| def read(): | |
| """ | |
| read data from data.json file (like a database) | |
| """ | |
| with open("data.json", "r+") as file: | |
| try: | |
| DataList.notes = DataList.deserialize(json.loads(file.read())) | |
| except json.decoder.JSONDecodeError as e: | |
| pass | |
| @staticmethod | |
| def search(): | |
| """ | |
| search a title in notes titles and print a list | |
| """ | |
| note_title = input("Note Title: ") | |
| data = [] | |
| for note in DataList.notes: | |
| if note.title_contains(note_title): | |
| data.append(note) | |
| DataList.print(data) | |
| class Note: | |
| def __init__(self, title, description): | |
| self.title = title | |
| self.description = description | |
| def print(self): | |
| print("Title: {}".format(self.title)) | |
| for line in self.description: | |
| print(line) | |
| def serialize(self): | |
| return {"title": self.title, "description": self.description} | |
| def title_contains(self, str): | |
| return self.title.find(str) >= 0 | |
| @staticmethod | |
| def create(notes): | |
| """ | |
| create new note and add it to the list of notes | |
| """ | |
| title = input("Title: ") | |
| prev_line = "" | |
| description = [] | |
| while True: | |
| if not description: | |
| desc = input("Description: ") | |
| else: | |
| desc = input(" ") | |
| if desc == "" and prev_line == "": | |
| break | |
| prev_line = desc | |
| description.append(desc) | |
| # fixme: better to handle it with conditions... | |
| note = Note(title, description[:-1]) | |
| notes.append(note) | |
| print("Note created successfully.") | |
| def print_help(): | |
| print("you should provide an option.") | |
| print(" -l print notes list") | |
| print(" -c create new note") | |
| print(" -s search in note titles") | |
| def main(): | |
| # get the command from user | |
| try: | |
| command = sys.argv[1] | |
| except Exception as e: | |
| print_help() | |
| return | |
| # load data from data.json | |
| DataList.read() | |
| if command == "-l": | |
| """ | |
| print notes list | |
| """ | |
| DataList.print(DataList.notes) | |
| elif command == "-c": | |
| """ | |
| add new item | |
| """ | |
| Note.create(DataList.notes) | |
| DataList.write() | |
| elif command == "-s": | |
| """ | |
| search notes to get one containing the title | |
| """ | |
| DataList.search() | |
| else: | |
| print_help() | |
| if __name__ == "__main__": | |
| main() |
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