What We're Going To Do3:27 with Kenneth Love
We should nail down what we want our app to do. Let's stub out most of it with comments.
[MUSIC] 0:00 What I wanna make is a simple command line application that will let me record 0:04 thoughts or notes, stick a time stamp on them, and save them to a database. 0:08 I should also be able to page through all of them in some sort of order. 0:12 I'll want to delete the ones I don't need anymore. 0:15 And I'd love to able to search for phrases in all of the posts. 0:17 I bet we can do all this in about 100 lines of code. 0:21 What do you think? 0:22 So, I've gone ahead, and made a file called diary.py. 0:24 You can call this journal.py or whatever, if you don't like the word, diary. 0:27 And again, of course, we need to import everything from peewee. 0:33 So, from peewee, import *. 0:36 And, just like last time, we need a database, and a model. 0:40 So my database, I'm gonna do again, Sqlite database, and I'm gonna say diary.db. 0:44 And then I'm gonna create my model, which I'm gonna call entry. 0:53 And again, it extends from Model. 0:58 So, what I wanna have in here is I wanna have content. 1:00 I wanna have a timestamp. 1:04 The Meta is gonna be database equals db. 1:08 Yeah? All right. 1:11 We're gonna have a menu. 1:16 So, I need to be able to show that menu. 1:18 This should be something that runs continuously like all 1:20 the menus that we've done in the past. 1:24 So, you know, probably want to have a while loop. 1:26 But I, I wanna make sure and 1:29 have this in a function cuz I don't want the script to just run all the time. 1:30 I, just, it's a little bit nicer organization. 1:35 So, let's call this menu loop. 1:38 And we'll say, Show the menu. 1:41 All right. 1:44 So, we know we're gonna have some crud. 1:46 We're gonna do creating, and reading, and probably wanna do updating. 1:50 But we'll do creating, reading, and deleting. 1:53 So, we should make functions for that. 1:55 So let's do an add entry. 1:57 And we're gonna say Add an entry. 2:02 Always important to have your docstrings kids. 2:07 Just remember to keep those in there. 2:12 And then for the reading part let's say view entries. 2:14 We're gonna look at all the entries, and we'll say View previous entries. 2:18 And then we're gonna have a way to delete, so, let's say delete entry. 2:25 And I think that's probably gonna get an entry passed to it. 2:31 And we'll say Delete an entry. 2:35 All right. 2:39 And then like I said, I wanna, I wanna be able to run this file so that it runs, but 2:40 if I ever wanna import these into something else, like maybe I wanna turn 2:45 this diary that works great on the command line into something I can use from Flask. 2:49 I'd wanna import this, I don't want stuff to just run when I import it. 2:55 So, we're going to add another one of those if name blocks. 2:59 So, if name is equal to main. 3:04 And then we're gonna have the menu, so, we're going to run menu loop. 3:07 So, okay. 3:12 I think that's what we need to have in order to get everything. 3:14 We'll flush this out as we go along. 3:18 Maybe my hundred line estimate isn't so great, but it's just comments so far. 3:21 Okay, let's get connected to the database and write our model. 3:25
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