orgstategstin column is added in invoice table.

gkcore/models/gkdb.py

@@ -295,6 +295,7 @@ Bankdetails is a dictionary will have bankname,accountno., branchname and ifscco
 taxstate is a destination sate.
 sourcestate is source state from where invoice is initiated.
 Structure of a tax field is {productcode:taxrate}
+save orgstategstin of sourcestate for organisation. 
 """
 invoice = Table('invoice',metadata,
     Column('invid',Integer,primary_key=True),
@@ -311,6 +312,7 @@ invoice = Table('invoice',metadata,
     Column('icflag',Integer,default=9),
     Column('taxstate',UnicodeText),
     Column('sourcestate',UnicodeText),
+    Column('orgstategstin',UnicodeText),
     Column('attachment',JSON),
     Column('attachmentcount',Integer,default=0),
     Column('orderid', Integer,ForeignKey('purchaseorder.orderid')),

gkcore/views/api_organisation.py

@@ -60,6 +60,7 @@ class api_organisation(object):
         """
         self.con = eng.connect()
         try:
+            self.con.execute(select([func.count(gkdb.invoice.c.orgstategstin)]))
             self.con.execute(select([func.count(gkdb.invoice.c.cess)]))
             self.con.execute(select([func.count(gkdb.state.c.statecode)]))
             self.con.execute(select([func.count(gkdb.invoice.c.reversecharge)]))
@@ -79,6 +80,7 @@ class api_organisation(object):
             self.con.execute(select(gkdb.organisation.c.billflag))
             self.con.execute(select([func.count(gkdb.billwise.c.billid)]))
         except:
+            self.con.execute("alter table invoice add orgstategstin text")
             self.con.execute("alter table invoice add cess jsonb")
             self.con.execute("alter table product add UNIQUE(productdesc,orgcode)")
             self.con.execute("create table state( statecode integer,statename text,primary key (statecode))")