Unable to insert data into MongoDB.

Arjun Srivatsa arjuns123 at gmail.com
Mon Feb 15 10:28:02 EST 2016


Okay,

I added

with open('yourfile','w') as f:
     f.write(data)

to the read_server code in which the Actual data is stored in a file on my desktop. Then, it must be possible to read this file in the Write_db script to insert the data. 

On Monday, February 15, 2016 at 4:00:37 PM UTC+1, Arjun Srivatsa wrote:
> Hi Peter.
> 
> Thank you for the reply. 
> 
> This is the read_server code:
> 
> import socket
> from pymongo import MongoClient
> #import datetime
> import sys
> 
> # Connection to server (PLC) on port 27017
> host = "10.52.124.135" 
> port = 27017
> 
> s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
> s.connect((host, port))
> sys.stdout.write(s.recv(1024))
> 
> 
> And the write_db code:
> 
> from pymongo import MongoClient
> import datetime
> import socket
> import sys
> 
> client = MongoClient('mongodb://localhost:27017/')
> db = client.test_database
> 
> mongodoc = { "data": 'data', "date" : datetime.datetime.utcnow() }
> values = db.values
> values_id = values.insert_one(mongodoc).inserted_id
> 
> 
> So, both these scripts work independently. While, read_server shows the output of the actual data from PLC, write_db inserts the sample data into the MongoDB.
> 
> I am not sure as to how to combine these both and get the desired output. 
> 
> 
> 
> On Monday, February 15, 2016 at 12:37:02 PM UTC+1, Peter Otten wrote:
> > Arjun Srivatsa wrote:
> > 
> > > I changed the port number from 27017 to 55555 in the code segment:
> > 
> > Instead of throwing arbitrary changes at your script in the hope that one 
> > works I recommend that you write two independent scripts, from scratch:
> > 
> > (1) write_to_db.py: 
> > Write made-up data into the MongoDB on your local machine.
> > 
> > (2) read_from_server.py: 
> > Read data from the server and print it to stdout.
> > 
> > Reduce these scripts to the bare minimum. Debug them one ofter another.
> > 
> > Once both scripts work to your satisfaction replace the sample data in 
> > script one with code from script two that reads actual data.


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