odoo/addons/crm/crm.py

# -*- coding: utf-8 -*-
##############################################################################
#
#    OpenERP, Open Source Management Solution
#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################

import time
from datetime import datetime
from datetime import timedelta

import tools
from osv import fields
from osv import osv
from tools.translate import _

MAX_LEVEL = 15
AVAILABLE_STATES = [
    ('draft', 'Draft'),
    ('open', 'Open'),
    ('cancel', 'Cancelled'),
    ('done', 'Closed'),
    ('pending', 'Pending')
]

AVAILABLE_PRIORITIES = [
    ('5', 'Lowest'),
    ('4', 'Low'),
    ('3', 'Normal'),
    ('2', 'High'),
    ('1', 'Highest')
]

class crm_case_section(osv.osv):
    """ Cases Section"""

    _name = "crm.case.section"
    _description = "Sales Teams"
    _order = "name"

    _columns = {
        'name': fields.char('Sales Team', size=64, required=True, translate=True),
        'code': fields.char('Code', size=8),
        'active': fields.boolean('Active', help="If the active field is set to \
                        true, it will allow you to hide the sales team without removing it."),
        'allow_unlink': fields.boolean('Allow Delete', help="Allows to delete non draft cases"),
        'user_id': fields.many2one('res.users', 'Responsible User'),
        'reply_to': fields.char('Reply-To', size=64, help="The email address put \
                        in the 'Reply-To' of all emails sent by Open ERP about cases in this sales team"),
        'parent_id': fields.many2one('crm.case.section', 'Parent Section'),
        'child_ids': fields.one2many('crm.case.section', 'parent_id', 'Child Sections'),
        'resource_calendar_id': fields.many2one('resource.calendar', "Resource's Calendar"),
    }

    _defaults = {
        'active': lambda *a: 1,
        'allow_unlink': lambda *a: 1,
    }

    _sql_constraints = [
        ('code_uniq', 'unique (code)', 'The code of the section must be unique !')
    ]

    def _check_recursion(self, cr, uid, ids):
        """
        Checks for recursion level for sections
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of section ids
        """
        level = 100

        while len(ids):
            cr.execute('select distinct parent_id from crm_case_section where id =ANY(%s)', (ids,))
            ids = filter(None, map(lambda x: x[0], cr.fetchall()))
            if not level:
                return False
            level -= 1

        return True

    _constraints = [
        (_check_recursion, 'Error ! You cannot create recursive sections.', ['parent_id'])
    ]

    def name_get(self, cr, uid, ids, context={}):
        """Overrides orm name_get method
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of section ids
        """

        if not len(ids):
            return []
        reads = self.read(cr, uid, ids, ['name', 'parent_id'], context)
        res = []

        for record in reads:
            name = record['name']
            if record['parent_id']:
                name = record['parent_id'][1] + ' / ' + name
            res.append((record['id'], name))
        return res
crm_case_section()


class crm_case_categ(osv.osv):
    """ Category of Case """

    _name = "crm.case.categ"
    _description = "Category of case"

    _columns = {
        'name': fields.char('Case Category Name', size=64, required=True, translate=True),
        'section_id': fields.many2one('crm.case.section', 'Sales Team'),
        'object_id': fields.many2one('ir.model', 'Object Name'),
    }

    def _find_object_id(self, cr, uid, context=None):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """

        object_id = context and context.get('object_id', False) or False
        ids = self.pool.get('ir.model').search(cr, uid, [('model', '=', object_id)])
        return ids and ids[0]

    _defaults = {
        'object_id' : _find_object_id
    }
#
crm_case_categ()


class crm_case_resource_type(osv.osv):
    """ Resource Type of case """

    _name = "crm.case.resource.type"
    _description = "Resource Type of case"
    _rec_name = "name"

    _columns = {
        'name': fields.char('Case Resource Type', size=64, required=True, translate=True),
        'section_id': fields.many2one('crm.case.section', 'Sales Team'),
        'object_id': fields.many2one('ir.model', 'Object Name'),
    }

    def _find_object_id(self, cr, uid, context=None):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """


        object_id = context and context.get('object_id', False) or False
        ids = self.pool.get('ir.model').search(cr, uid, [('model', '=', object_id)])
        return ids and ids[0]

    _defaults = {
        'object_id' : _find_object_id
    }

crm_case_resource_type()


class crm_case_stage(osv.osv):
    """ Stage of case """

    _name = "crm.case.stage"
    _description = "Stage of case"
    _rec_name = 'name'
    _order = "sequence"

    _columns = {
        'name': fields.char('Stage Name', size=64, required=True, translate=True),
        'section_id': fields.many2one('crm.case.section', 'Sales Team'),
        'sequence': fields.integer('Sequence', help="Gives the sequence order \
                        when displaying a list of case stages."),
        'object_id': fields.many2one('ir.model', 'Object Name'),
        'probability': fields.float('Probability (%)', required=True),
        'on_change': fields.boolean('Change Probability Automatically',\
                         help="Change Probability on next and previous stages."),
        'requirements': fields.text('Requirements')
    }

    def _find_object_id(self, cr, uid, context=None):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """

        object_id = context and context.get('object_id', False) or False
        ids = self.pool.get('ir.model').search(cr, uid, [('model', '=', object_id)])
        return ids and ids[0]

    _defaults = {
        'sequence': lambda *args: 1,
        'probability': lambda *args: 0.0,
        'object_id' : _find_object_id
    }

crm_case_stage()

def _links_get(self, cr, uid, context={}):
    """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """


    obj = self.pool.get('res.request.link')
    ids = obj.search(cr, uid, [])
    res = obj.read(cr, uid, ids, ['object', 'name'], context)
    return [(r['object'], r['name']) for r in res]

class crm_case(osv.osv):
    """ CRM Case """

    _name = "crm.case"
    _description = "Case"

    def _email_last(self, cursor, user, ids, name, arg, context=None):

        """Return History
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case’s IDs
        @param context: A standard dictionary for contextual values
        """


        res = {}
        for case in self.browse(cursor, user, ids):
            if case.history_line:
                res[case.id] = case.history_line[0].description
            else:
                res[case.id] = False
        return res

    def copy(self, cr, uid, id, default=None, context={}):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case’s IDs
        @param context: A standard dictionary for contextual values
        """

        if not default:
            default = {}
        default.update({'state': 'draft', 'id': False})
        return super(crm_case, self).copy(cr, uid, id, default, context)

    def _get_log_ids(self, cr, uid, ids, field_names, arg, context={}):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case log’s IDs
        @param context: A standard dictionary for contextual values
        """

        result = {}
        history_obj = False
        model_obj = self.pool.get('ir.model')

        if 'history_line' in field_names:
            history_obj = self.pool.get('crm.case.history')
            name = 'history_line'

        if 'log_ids' in field_names:
            history_obj = self.pool.get('crm.case.log')
            name = 'log_ids'

        if not history_obj:
            return result

        for case in self.browse(cr, uid, ids, context):
            model_ids = model_obj.search(cr, uid, [('model', '=', case._name)])
            history_ids = history_obj.search(cr, uid, [('model_id', '=', model_ids[0]),\
                                         ('res_id', '=', case.id)])
            if history_ids:
                result[case.id] = {name: history_ids}
            else:
                result[case.id] = {name: []}

        return result

    _columns = {
        'id': fields.integer('ID', readonly=True),
        'name': fields.char('Description', size=1024, required=True),
        'active': fields.boolean('Active', help="If the active field is set to\
                     true, it will allow you to hide the case without removing it."),
        'description': fields.text('Description'),
        'section_id': fields.many2one('crm.case.section', 'Sales Team',\
                        select=True, help='Sales team to which Case belongs to.\
                             Define Responsible user and Email account for mail gateway.'),
        'email_from': fields.char('Email', size=128, help="These people will receive email."),
        'email_cc': fields.text('Watchers Emails', size=252 , help="These people\
                             will receive a copy of the future" \
                            " communication between partner and users by email"),
        'probability': fields.float('Probability'),
        'email_last': fields.function(_email_last, method=True,
            string='Latest E-Mail', type='text'),
        'partner_id': fields.many2one('res.partner', 'Partner'),
        'partner_address_id': fields.many2one('res.partner.address', 'Partner Contact',\
                                 domain="[('partner_id','=',partner_id)]"),
        'create_date': fields.datetime('Creation Date' , readonly=True),
        'write_date': fields.datetime('Update Date' , readonly=True),
        'date_deadline': fields.date('Deadline'),
        'user_id': fields.many2one('res.users', 'Responsible'),
        'history_line': fields.function(_get_log_ids, method=True, type='one2many',\
                         multi="history_line", relation="crm.case.history", string="Communication"),
        'log_ids': fields.function(_get_log_ids, method=True, type='one2many',\
                         multi="log_ids", relation="crm.case.log", string="Logs History"),
        'stage_id': fields.many2one ('crm.case.stage', 'Stage',\
                         domain="[('section_id','=',section_id),\
                        ('object_id.model', '=', 'crm.opportunity')]"),
        'state': fields.selection(AVAILABLE_STATES, 'State', size=16, readonly=True,
                                  help='The state is set to \'Draft\', when a case is created.\
                                  \nIf the case is in progress the state is set to \'Open\'.\
                                  \nWhen the case is over, the state is set to \'Done\'.\
                                  \nIf the case needs to be reviewed then the state is set to \'Pending\'.'),
        'company_id': fields.many2one('res.company', 'Company'),
    }

    def _get_default_partner_address(self, cr, uid, context):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """

        if not context.get('portal', False):
            return False
        return self.pool.get('res.users').browse(cr, uid, uid, context).address_id.id

    def _get_default_partner(self, cr, uid, context):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """

        if not context.get('portal', False):
            return False
        user = self.pool.get('res.users').browse(cr, uid, uid, context)
        if not user.address_id:
            return False
        return user.address_id.partner_id.id

    def _get_default_email(self, cr, uid, context):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """

        if not context.get('portal', False):
            return False
        user = self.pool.get('res.users').browse(cr, uid, uid, context)
        if not user.address_id:
            return False
        return user.address_id.email

    def _get_default_user(self, cr, uid, context):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """

        if context.get('portal', False):
            return False
        return uid

    def _get_section(self, cr, uid, context):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """

        user = self.pool.get('res.users').browse(cr, uid, uid, context=context)
        return user.context_section_id.id or False

    _defaults = {
        'active': lambda *a: 1,
        'user_id': _get_default_user,
        'partner_id': _get_default_partner,
        'partner_address_id': _get_default_partner_address,
        'email_from': _get_default_email,
        'state': lambda *a: 'draft',
        'section_id': _get_section,
        'company_id': lambda s, cr, uid, c: s.pool.get('res.company')._company_default_get(cr, uid, 'crm.case', context=c),
    }

    _order = 'date_deadline desc, create_date desc,id desc'

    def unlink(self, cr, uid, ids, context={}):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case’s IDs
        @param context: A standard dictionary for contextual values"""

        for case in self.browse(cr, uid, ids, context):
            if (not case.section_id.allow_unlink) and (case.state <> 'draft'):
                raise osv.except_osv(_('Warning !'),
                    _('You can not delete this case. You should better cancel it.'))
        return super(crm_case, self).unlink(cr, uid, ids, context)

    def stage_next(self, cr, uid, ids, context={}):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of stage next’s IDs
        @param context: A standard dictionary for contextual values"""

        s = self.get_stage_dict(cr, uid, ids, context=context)
        for case in self.browse(cr, uid, ids, context):
            section = (case.section_id.id or False)
            if section in s:
                st = case.stage_id.id  or False
                if st in s[section]:
                    self.write(cr, uid, [case.id], {'stage_id': s[section][st]})
        return True

    def get_stage_dict(self, cr, uid, ids, context={}):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of stage dict’s IDs
        @param context: A standard dictionary for contextual values"""

        sid = self.pool.get('crm.case.stage').search(cr, uid,\
                            [('object_id.model', '=', self._name)], context=context)
        s = {}
        previous = {}
        for stage in self.pool.get('crm.case.stage').browse(cr, uid, sid, context=context):
            section = stage.section_id.id or False
            s.setdefault(section, {})
            s[section][previous.get(section, False)] = stage.id
            previous[section] = stage.id
        return s

    def stage_previous(self, cr, uid, ids, context={}):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of stage previous’s IDs
        @param context: A standard dictionary for contextual values"""

        s = self.get_stage_dict(cr, uid, ids, context=context)
        for case in self.browse(cr, uid, ids, context):
            section = (case.section_id.id or False)

            if section in s:
                st = case.stage_id.id  or False
                s[section] = dict([(v, k) for (k, v) in s[section].iteritems()])
                if st in s[section]:
                    self.write(cr, uid, [case.id], {'stage_id': s[section][st]})
        return True

    def history(self, cr, uid, ids, keyword, history=False, email=False, details=None, context={}):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of History’s IDs
        @param context: A standard dictionary for contextual values"""

        cases = self.browse(cr, uid, ids, context=context)
        return self.__history(cr, uid, cases, keyword=keyword, \
                               history=history, email=email, details=details, \
                               context=context)

    def __history(self, cr, uid, cases, keyword, history=False, email=False, details=None, email_from=False, context={}):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of History’s IDs
        @param context: A standard dictionary for contextual values"""


        model_obj = self.pool.get('ir.model')

        for case in cases:
            model_ids = model_obj.search(cr, uid, [('model', '=', case._name)])
            data = {
                'name': keyword,
                'user_id': uid,
                'date': time.strftime('%Y-%m-%d %H:%M:%S'),
                'model_id' : model_ids and model_ids[0] or False,
                'res_id': case.id,
                'section_id': case.section_id.id
            }

            obj = self.pool.get('crm.case.log')
            if history:
                obj = self.pool.get('crm.case.history')
                data['description'] = details or case.description
                data['email_to'] = email or \
                        (case.section_id and case.section_id.reply_to) or \
                        (case.user_id and case.user_id.address_id and \
                            case.user_id.address_id.email) or tools.config.get('email_from',False)
                data['email_from'] = email_from or \
                        (case.section_id and case.section_id.reply_to) or \
                        (case.user_id and case.user_id.address_id and \
                            case.user_id.address_id.email) or tools.config.get('email_from',False)
            res = obj.create(cr, uid, data, context)
        return True
    _history = __history

    def create(self, cr, uid, *args, **argv):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param *args: Give Tuple Value
        @Paran **args: Give Dictionay of Keyword Value
        """

        res = super(crm_case, self).create(cr, uid, *args, **argv)
        cases = self.browse(cr, uid, [res])
        cases[0].state # to fill the browse record cache
        self._action(cr, uid, cases, 'draft')
        return res

    def add_reply(self, cursor, user, ids, context=None):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        """

        for case in self.browse(cursor, user, ids, context=context):
            if case.email_last:
                description = case.email_last
                self.write(cursor, user, case.id, {
                    'description': '> ' + description.replace('\n', '\n> '),
                    }, context=context)
        return True

    def case_log(self, cr, uid, ids, context={}, email=False, *args):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        @param *args: Give Tuple Value
        """

        cases = self.browse(cr, uid, ids)
        self.__history(cr, uid, cases, _('Historize'), history=True, email=email)
        return self.write(cr, uid, ids, {'description': False, 'som': False,
            'canal_id': False})

    def case_log_reply(self, cr, uid, ids, context={}, email=False, *args):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param context: A standard dictionary for contextual values
        @param *args: Give Tuple Value
        """

        cases = self.browse(cr, uid, ids)
        for case in cases:
            if not case.email_from:
                raise osv.except_osv(_('Error!'),
                        _('You must put a Partner eMail to use this action!'))

            if not case.user_id:
                raise osv.except_osv(_('Error!'),
                        _('You must define a responsible user for this case in order to use this action!'))

            if not case.description:
                raise osv.except_osv(_('Error!'),
                        _('Can not send mail with empty body,you should have description in the body'))

        self.__history(cr, uid, cases, _('Send'), history=True, email=False)
        for case in cases:
            self.write(cr, uid, [case.id], {
                'description': False,
                })
            emails = [case.email_from] + (case.email_cc or '').split(',')
            emails = filter(None, emails)
            body = case.description or ''
            if case.user_id.signature:
                body += '\n\n%s' % (case.user_id.signature)

            emailfrom = case.user_id.address_id and case.user_id.address_id.email or False
            if not emailfrom:
                raise osv.except_osv(_('Error!'),
                        _("No E-Mail ID Found for your Company address!"))

            tools.email_send(
                emailfrom,
                emails,
                '[' + str(case.id) + '] ' + case.name,
                self.format_body(body),
                reply_to = case.section_id.reply_to,
                openobject_id = str(case.id)
            )
            self.__history(cr, uid, [case], _('Send'), history=True, email=emails, details=body, email_from=emailfrom)
        return True

    def onchange_partner_id(self, cr, uid, ids, part, email=False):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        """

        if not part:
            return {'value': {'partner_address_id': False,
                            'email_from': False,
                            }}
        addr = self.pool.get('res.partner').address_get(cr, uid, [part], ['contact'])
        data = {'partner_address_id': addr['contact']}
        data.update(self.onchange_partner_address_id(cr, uid, ids, addr['contact'])['value'])
        return {'value': data}

    def onchange_partner_address_id(self, cr, uid, ids, add, email=False):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        """

        data = {}
        if not add:
            return {'value': {'email_from': False, 'partner_name2': False}}
        address = self.pool.get('res.partner.address').browse(cr, uid, add)
        data['email_from'] = address.email
        return {'value': data}

    def case_close(self, cr, uid, ids, *args):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case's Ids
        @param *args: Give Tuple Value
        """

        cases = self.browse(cr, uid, ids)
        cases[0].state # to fill the browse record cache
        self.__history(cr, uid, cases, _('Close'))
        self.write(cr, uid, ids, {'state': 'done', 'date_closed': time.strftime('%Y-%m-%d %H:%M:%S')})
        #
        # We use the cache of cases to keep the old case state
        #
        self._action(cr, uid, cases, 'done')
        return True

    def case_escalate(self, cr, uid, ids, *args):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case's Ids
        @param *args: Give Tuple Value
        """

        cases = self.browse(cr, uid, ids)
        for case in cases:
            data = {'active': True, 'user_id': False}

            if case.section_id.parent_id:
                data['section_id'] = case.section_id.parent_id.id
                if case.section_id.parent_id.user_id:
                    data['user_id'] = case.section_id.parent_id.user_id.id
            else:
                raise osv.except_osv(_('Error !'), _('You can not escalate this case.\nYou are already at the top level.'))
            self.write(cr, uid, ids, data)
        cases = self.browse(cr, uid, ids)
        self.__history(cr, uid, cases, _('Escalate'))
        self._action(cr, uid, cases, 'escalate')
        return True


    def case_open(self, cr, uid, ids, *args):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case's Ids
        @param *args: Give Tuple Value
        """

        cases = self.browse(cr, uid, ids)
        self.__history(cr, uid, cases, _('Open'))
        for case in cases:
            data = {'state': 'open', 'active': True}
            if not case.user_id:
                data['user_id'] = uid
            self.write(cr, uid, ids, {'state': 'open', 'active': True})
        self._action(cr, uid, cases, 'open')
        return True


    def case_cancel(self, cr, uid, ids, *args):
        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case's Ids
        @param *args: Give Tuple Value
        """

        cases = self.browse(cr, uid, ids)
        cases[0].state # to fill the browse record cache
        self.__history(cr, uid, cases, _('Cancel'))
        self.write(cr, uid, ids, {'state': 'cancel', 'active': True})
        self._action(cr, uid, cases, 'cancel')
        return True

    def case_pending(self, cr, uid, ids, *args):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case's Ids
        @param *args: Give Tuple Value
        """

        cases = self.browse(cr, uid, ids)
        cases[0].state # to fill the browse record cache
        self.__history(cr, uid, cases, _('Pending'))
        self.write(cr, uid, ids, {'state': 'pending', 'active': True})
        self._action(cr, uid, cases, 'pending')
        return True

    def case_reset(self, cr, uid, ids, *args):

        """
        @param self: The object pointer
        @param cr: the current row, from the database cursor,
        @param uid: the current user’s ID for security checks,
        @param ids: List of case's Ids
        @param *args: Give Tuple Value
        """

        cases = self.browse(cr, uid, ids)
        cases[0].state # to fill the browse record cache
        self.__history(cr, uid, cases, _('Draft'))
        self.write(cr, uid, ids, {'state': 'draft', 'active': True})
        self._action(cr, uid, cases, 'draft')
        return True

crm_case()


class crm_case_log(osv.osv):
    """ Case Communication History """
    _name = "crm.case.log"
    _description = "Case Communication History"

    _order = "id desc"
    _columns = {
        'name': fields.char('Status', size=64),
        'date': fields.datetime('Date'),
        'section_id': fields.many2one('crm.case.section', 'Section'),
        'user_id': fields.many2one('res.users', 'User Responsible', readonly=True),
        'model_id': fields.many2one('ir.model', "Model"),
        'res_id': fields.integer('Resource ID'),
    }

    _defaults = {
        'date': lambda *a: time.strftime('%Y-%m-%d %H:%M:%S'),
    }

crm_case_log()

class crm_case_history(osv.osv):
    """Case history"""

    _name = "crm.case.history"
    _description = "Case history"
    _order = "id desc"
    _inherits = {'crm.case.log': "log_id"}

    def _note_get(self, cursor, user, ids, name, arg, context=None):

        """ @param self: The object pointer
            @param cr: the current row, from the database cursor,
            @param uid: the current user’s ID for security checks,
            @param ids: List of case History’s IDs
            @param context: A standard dictionary for contextual values
        """

        res = {}
        for hist in self.browse(cursor, user, ids, context or {}):
            res[hist.id] = (hist.email or '/') + ' (' + str(hist.date) + ')\n'
            res[hist.id] += (hist.description or '')
        return res

    _columns = {
        'description': fields.text('Description'),
        'note': fields.function(_note_get, method=True, string="Description", type="text"),
        'email_to': fields.char('Email TO', size=84),
        'email_from' : fields.char('Email From', size=84),
        'log_id': fields.many2one('crm.case.log','Log',ondelete='cascade'),
    }

crm_case_history()


class users(osv.osv):
    _inherit = 'res.users'
    _description = "Users"
    _columns = {
        'context_section_id': fields.many2one('crm.case.section', 'Sales Team'),
    }
users()


class res_partner(osv.osv):
    _inherit = 'res.partner'
    _columns = {
        'section_id': fields.many2one('crm.case.section', 'Sales Team'),
    }
res_partner()

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