rudimentary class for database interactions (download db from switchdrive: https://drive.switch.ch/index.php/apps/files/?dir=/Consultancy&fileid=7499599646#).

.gitignore

@@ -37,6 +37,32 @@ nbdist/
 nbactions.xml
 nb-configuration.xml
 
+# Sublime
+*.sublime-*
+
 # OS
 .DS_Store
 
+# Python
+.Python
+.python-version
+__pycache__/
+.pytest_cache
+*.py[cod]
+.env/
+.env*
+.~env/
+.venv
+env3.6/
+venv/
+env3.*/
+.dev
+.denv
+.pypyenv
+.pytest_cache/
+.mypy_cache/
+.hypothesis/
+
+# duckdb
+*.duckdb
+

src/data/__init__.py

@@ -0,0 +1,5 @@
+from data import database
+
+
+def load():
+	return database.Database()

src/data/database.py

@@ -0,0 +1,15 @@
+import duckdb
+
+
+class Database:
+	def __init__(self):
+		self.connection = duckdb.connect(database = '../data/consultancy.duckdb', read_only = True)
+
+	def db_overview(self):
+		return self.connection.sql("DESCRIBE;").show()
+
+	def seeds(self):
+		return self.connection.sql("SELECT regions.name, seeds.uri FROM consultancy_d.regions LEFT JOIN consultancy_d.seeds ON regions.id = seeds.region_id;").show()
+		
+	def properties_growth(self):
+		return self.connection.sql("SELECT strftime(created_at, '%Y-%m-%d') AS date, COUNT(*) as properties_count FROM consultancy_d.properties GROUP BY date;").show()

src/gio/test_duckdb.py

@@ -0,0 +1,5 @@
+import data
+
+inst = data.load()
+inst.seeds()
+inst.properties_growth()