import sqlite3, pymysql, pymysql.cursors SQLITE = 0 MYSQL = 1 MARIADB = MYSQL MIN = 0 MAX = 1 class dbObject: # --------------------------------------------- Initialization ------------------------------------------------- def initMySQL(self, host, port, user, pwd, db): self.conn = pymysql.connect(host = host, port = port, user = user, password = pwd, db = db, charset = "utf8mb4", cursorclass = pymysql.cursors.DictCursor) self.cur = conn.cursor() self.dbtype = MYSQL self.host = host self.port = port self.user = user self.pwd = pwd self.db = db def initSQLite(self, path): self.conn = sqlite3.connect(path) self.cur = self.conn.cursor() self.dbtype = SQLITE self.path = path def __init__(self, dbtype = SQLITE, path = 'Database.db', host = None, port = None, user = None, pwd = None, db = None): if dbtype == SQLITE: self.initSQLite(path) elif dbtype == MYSQL: self.initMySQL(host, port or 3306, user, pwd, db) else: raise ValueError("Unknown database type %s." % str(dbtype)) # ---------------------------------------------- No more initialization ---------------------------------------- def closeConnection(self): return self.conn.close() def commit(self): return self.conn.commit() def executeQuery(self, query): return self.cur.execute(query) def getNext(self): return self.cur.fetchone() def isInitialized(self): try: self.executeQuery("SELECT * FROM tweets") return True except: return False def getFLDate(self, val = MIN): if val == MIN: mode = "MIN" else: mode = "MAX" return getDate(str(list(self.executeQuery("SELECT %s(SUBSTR(timestamp,0,11)) FROM tweets" % mode))[0][0])) def getLatestTweet(db): db.executeQuery("SELECT max(tweet_id) FROM tweets") try: return int(db.getNext()[0]) except: return 0