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#summary Various samples of code. #labels Phase-Support

Code Snippets

This is a collection of miscellaneous code samples. Find various topics on the subpages to help you get aquainted with tryton coding.

Define a many2many field

For defining a many2many field, you a) need an additional table / model b) define the field. First define the additional model to hold the relation:

class PartyWorksForParty(ModelSQL):
    'Define Party - Party relations'
    _name = 'party-worksfor-party'
    person = fields.Many2One('party.party', 'Person',
                             select=1, required=True)
    org = fields.Many2One('party.party', 'Organisation',
                          select=1, required=True) 

PartyWorksForParty()

Now define the many2many field which uses the above relation:

class Party(ModelSQL, ModelView):
    _name = 'party.party'
    # this field related person -> organization
    works_for = fields.Many2Many('party-worksfor-party',
                                  'person', 'org',
                                 'Works for')
    # here is another field for relating organization -> person
    workers = fields.Many2Many('party-worksfor-party',
                               'org', 'person',
                               'Workers')

Access the target of a many2many field

Assume some many2many field as defined in #Define_a_many2many_field. Now you can access the "target" side of the many2many relation like this:

        for party in self.browse(cursor, user, ids, context=context):
            res[party.id] = ', '.join(p.name for p in party.works_for)

As you can see, party.works_for is a list.

tryton jsonrpc client for create a database

from jsonrpclib import Server as ServerProxy
import jsonrpclib
import json
import pprint

server = ServerProxy("http://localhost:8000", verbose=0)
try:
    server.common.db.list(None,None)
    a = json.loads( jsonrpclib.history.response)
    pprint.pprint(a["result"])
    server.common.db.create(None,None,'new_database_name',"password tryton admin","es_ES","admin_password")
except TypeError:
    a = json.loads( jsonrpclib.history.response)
    print "error:"
    print a["error"]

extended example: https://gist.github.com/1290571