. F alternative way to inject rules into fizzbuzz, with default rules from DB or overriden in memory

Co-Authored-By: Joel Silberman <42779942+jcs-instructor@users.noreply.github.com> Co-Authored-By: 4dsherwood <4dsherwood@users.noreply.github.com>

Author: jcs-instructor

katas/fizzbuzz_with_db_2/fizzbuzz.py

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+# The starting point for this code is from GPT4: https://chat.openai.com/share/df0f70f0-b2a0-44b7-8c48-e252ad95ca24
+# At this point it has no tests, etc.
+from pymongo import MongoClient
+
+class Rule:
+ def __init__(self, word, divisor):
+ self.word = word
+ self.divisor = divisor
+
+def get_rules_from_db(collection):
+ # Fetches rules from MongoDB, sorted by the divisor in ascending order
+ rules = []
+ try:
+ rules_data = collection.find({}).sort("divisor", 1) # Sorting by 'divisor' in ascending order
+ for rule in rules_data:
+ rules.append(Rule(rule['word'], rule['divisor']))
+ except Exception as e:
+ print(f"An error occurred while fetching rules from MongoDB: {e}")
+ return rules
+
+def fizz_buzz(i, rules=None):
+ # Uses default rules from MongoDB if no rules are specified
+ if rules is None:
+ rules = default_rules_from_db
+ output = []
+ for rule in rules:
+ if i % rule.divisor == 0 or str(rule.divisor) in str(i):
+ output.append(rule.word)
+ return ''.join(output) if output else str(i)
+
+# MongoDB connection setup
+client = MongoClient('mongodb://localhost:27017/') # Connect to your MongoDB server
+db = client['fizzbuzz_db'] # Specify the database
+collection = db['rules'] # Specify the collection
+
+# Fetch default rules from MongoDB
+default_rules_from_db = get_rules_from_db(collection)
+
+# Example usage of the fizz_buzz function with MongoDB
+print([fizz_buzz(i) for i in range(1, 16)]) # Uses default rules