Upload csvtransformerjson.py

csvtransformerjson.py

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+import csv
+import pandas as pd
+
+class CSVtoJSONTransformer:
+    def __init__(self, csv_reader):
+        self.csv_reader = csv_reader
+    
+    def transform_to_json(self):
+        next(self.csv_reader)  # Skip header if present
+        df = pd.DataFrame(self.csv_reader)  # Convert csv_reader to DataFrame
+        df["Author"] = df["Author"].replace({pd.NA: None})
+        df["Comment Body"] = df["Comment Body"].replace({pd.NA: None})
+
+        transformed_data = []
+
+        # Group the DataFrame by the 'Subreddit' column
+        grouped_df = df.groupby('Subreddit')
+
+        for subreddit, group in grouped_df:
+            subreddit_data = {
+                "Subreddit": subreddit,
+                "Posts": []
+            }
+            
+            # Dictionary to keep track of post titles and their corresponding post IDs
+            post_title_to_id = {}
+
+            for index, row in group.iterrows():
+                post_title = row['Post Title']
+                comment_body = row['Comment Body']
+                timestamp = row['Timestamp']
+                upvotes = row['Upvotes']
+                ID = row['ID']
+                author = row['Author']
+                replies = row['Number of Replies']
+
+                # Check if the post title already exists under the subreddit
+                if post_title in post_title_to_id:
+                    post_id = post_title_to_id[post_title]
+                    # Append comment to existing post
+                    for post in subreddit_data["Posts"]:
+                        if post['PostID'] == post_id:
+                            post['Comments'].append({
+                                "CommentID": ID,
+                                "Author": author,
+                                "CommentBody": comment_body,
+                                "Timestamp": timestamp,
+                                "Upvotes": upvotes,
+                                "NumberofReplies": replies
+                            })
+                            break
+                else:
+                    # If the post title does not exist, create a new entry
+                    post_id = len(subreddit_data["Posts"]) + 1
+                    post_title_to_id[post_title] = post_id
+                    subreddit_data["Posts"].append({
+                        "PostID": post_id,
+                        "PostTitle": post_title,
+                        "Comments": [{
+                            "CommentID": ID,
+                            "Author": author,
+                            "CommentBody": comment_body,
+                            "Timestamp": timestamp,
+                            "Upvotes": upvotes,
+                            "NumberofReplies": replies
+                        }]
+                    })
+
+            transformed_data.append(subreddit_data)
+
+        return transformed_data