bug fixes: mongodb, common, nextcloud

transport/__init__.py

@@ -27,6 +27,7 @@ import json
 import importlib 
 import sys 
 import sqlalchemy
+from datetime import datetime
 if sys.version_info[0] > 2 : 
 	# from transport.common import Reader, Writer,Console #, factory
 	from transport import disk
@@ -83,16 +84,19 @@ import os
 # 	PGSQL	= POSTGRESQL
 # import providers
 
-class IEncoder (json.JSONEncoder):
-	def default (self,object):
+# class IEncoder (json.JSONEncoder):
+def IEncoder (self,object):
 	if type(object) == np.integer :
 		return int(object)
 	elif type(object) == np.floating:
 		return float(object)
 	elif type(object) == np.ndarray :
 		return object.tolist()
+	elif type(object) == datetime :
+		return o.isoformat()
 	else:
 		return super(IEncoder,self).default(object)
+		
 class factory :
 	TYPE = {"sql":{"providers":["postgresql","mysql","neteeza","bigquery","mariadb","redshift"]}}
 	PROVIDERS = {

transport/common.py

@@ -25,7 +25,7 @@ from multiprocessing import RLock
 import queue
 # import couch
 # import mongo
-
+from datetime import datetime
 
 class IO:
 	def init(self,**args):
@@ -39,6 +39,19 @@ class IO:
 				continue
 			value = args[field]
 			setattr(self,field,value)
+class IEncoder (json.JSONEncoder):
+	def default (self,object):
+		if type(object) == np.integer :
+			return int(object)
+		elif type(object) == np.floating:
+			return float(object)
+		elif type(object) == np.ndarray :
+			return object.tolist()
+		elif type(object) == datetime :
+			return object.isoformat()
+		else:
+			return super(IEncoder,self).default(object)
+				
 class Reader (IO):
 	"""
 	This class is an abstraction of a read functionalities of a data store

transport/disk.py

@@ -12,6 +12,8 @@ import json
 import sqlite3
 import pandas as pd
 from multiprocessing import Lock
+from transport.common import Reader, Writer, IEncoder
+
 class DiskReader(Reader) :
 	"""
 	This class is designed to read data from disk (location on hard drive)
@@ -221,6 +223,8 @@ class SQLiteWriter(SQLite,DiskWriter) :
 			info = info.to_dict(orient='records')
         
 		if not self.fields :
+			
+			
 			_rec = info[0]
 			self.init(list(_rec.keys()))
 
@@ -231,7 +235,8 @@ class SQLiteWriter(SQLite,DiskWriter) :
 			sql = " " .join(["INSERT INTO ",self.table,"(", ",".join(self.fields) ,")", "values(:values)"])
 			for row in info :
 				stream =["".join(["",value,""]) if type(value) == str else value for value in row.values()]
-				stream = json.dumps(stream).replace("[","").replace("]","")
+				stream = json.dumps(stream,cls=IEncoder)
+				stream = stream.replace("[","").replace("]","")
 				
 				
 				self.conn.execute(sql.replace(":values",stream) )

transport/mongo.py

@@ -15,7 +15,7 @@ import gridfs
 # from transport import Reader,Writer
 import sys
 if sys.version_info[0] > 2 :
-	from transport.common import Reader, Writer
+	from transport.common import Reader, Writer, IEncoder
 else:
 	from common import Reader, Writer
 import json
@@ -102,7 +102,7 @@ class MongoReader(Mongo,Reader):
             if 'pipeline' in args :
                 cmd['pipeline']= args['pipeline']
             if 'aggregate' not in cmd :
-                cmd['aggregate'] = self.collection
+                cmd['aggregate'] = self.uid
             if 'pipeline' not in args or 'aggregate' not in cmd :
                 cmd = args['mongo'] if 'mongo' in args else args['cmd']
             if "aggregate" in cmd :
@@ -182,7 +182,7 @@ class MongoWriter(Mongo,Writer):
         for row in rows :
             if type(row['_id']) == ObjectId :
                 row['_id'] = str(row['_id'])
-        stream = Binary(json.dumps(collection).encode())
+        stream = Binary(json.dumps(collection,cls=IEncoder).encode())
         collection.delete_many({})
         now = "-".join([str(datetime.now().year()),str(datetime.now().month), str(datetime.now().day)])
         name = ".".join([self.uid,'archive',now])+".json"

transport/nextcloud.py

@@ -3,7 +3,7 @@ We are implementing transport to and from nextcloud (just like s3)
 """
 import os
 import sys
-from transport.common import Reader,Writer
+from transport.common import Reader,Writer, IEncoder
 import pandas as pd
 from io import StringIO
 import json
@@ -73,7 +73,7 @@ class NextcloudWriter (Nextcloud,Writer):
             _data.to_csv(f,index=False)
             _content = f.getvalue()
         elif type(_data) == dict :
-            _content = json.dumps(_data)
+            _content = json.dumps(_data,cls=IEncoder)
         else:
             _content = str(_data)
         self._handler.put_file_contents(_uri,_content)