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reddit_helper.py
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reddit_helper.py
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import re
import praw
# * for KSQLDB
SUBMISSION_SCHEMA_STR = """{
"$schema": "http://json-schema.org/draft-07/schema#",
"title": "Reddit Submission",
"description": "A submission from reddit",
"type":"object",
"properties": {
"author": {
"description": "The author of the reddit submission.",
"type": "string"
},
"created_at": {
"description": "the unix timestamp this post was created at.",
"type": "integer"
},
"downs": {
"description": "The number of downvotes.",
"type": "integer"
},
"submission_id": {
"description": "The unique id for the reddit submission.",
"type": "string"
},
"permalink": {
"description": "permalink to the submission.",
"type": "string"
},
"post_type": {
"description": "What type of reddit post are we dealing with",
"type": "string"
},
"score": {
"description": "The visible reddit score between ups/downs",
"type": "integer"
},
"self_text": {
"description": "The submissions self text .",
"type": "string"
},
"subreddit": {
"description": "The name of the subreddit this post is from.",
"type": "string"
},
"title": {
"description": "The submissions title.",
"type": "string"
},
"ups": {
"description": "The number of upvotes.",
"type": "integer"
}
},
"required": [
"author",
"created_at",
"title",
"ups",
"downs",
"score",
"post_type",
"subreddit"
]
}"""
class Submission(object):
def __init__(
self,
id,
author,
subreddit,
created_at,
score,
ups,
downs,
permalink,
post_type,
title,
self_text,
):
self.id = id
self.author = author
self.subreddit = subreddit
self.created_at = created_at
self.score = score
self.ups = ups
self.downs = downs
self.permalink = permalink
self.post_type = post_type
self.title = title
self.self_text = str(self_text)
def process_submission(submission: praw.models.Submission):
# create json dumps for posts
body = {
"author": str(submission.author.name),
"created_at": int(submission.created_utc),
"permalink": submission.permalink,
"score": submission.score,
"self_text": clean_post(submission.selftext) if submission.selftext else None,
"title": clean_post(submission.title),
"ups": submission.ups,
"downs": submission.downs,
"subreddit": submission.subreddit.display_name,
"post_type": "submission",
"id": submission.id,
}
return Submission(**body)
def clean_post(text):
# remove [deleted] posts
text = re.sub(r"\[deleted]", "", text)
if not text:
return None
# embded hyperlinks (text)[link]
text = re.sub(r"\[(.*?)\]\(http\S+\)", r"\1", text)
# normal hyperlinks
text = re.sub(r"http\S+", "", text)
# remove newline/tabs characters
text = text.replace("\n", "")
text = text.replace("\t", "")
# misc
text = text.replace("'", "'")
# double spaces
text = text.replace(" ", " ")
# tabs
text = text.replace(" ", " ")
return text
#! Broken: Switching not working properly
def generate_post(subreddit_stream, comment_stream):
for submission in subreddit_stream:
if not submission:
continue
else:
yield submission
for comment in comment_stream:
if not comment:
continue
else:
yield comment
def submission_to_dict(submission: Submission, ctx):
return {
"id": submission.id,
"author": submission.author,
"created_at": submission.created_at,
"subreddit": submission.subreddit,
"score": submission.score,
"ups": submission.ups,
"downs": submission.downs,
"permalink": submission.permalink,
"post_type": submission.post_type,
"title": submission.title,
"self_text": submission.self_text,
}