Please tell me the reason why this errors comes frequently in openerp ver 7 ? issue comes when i'm going to create a employee in human resource model

TypeError: data[0] is undefined

http://localhost:8069/web/webclient/js?db=201310211510:3560

here is my hr_view.xml

    <!--Employee form view -->
    <record id="view_employee_form" model="ir.ui.view">
        <field name="name">hr.employee.form</field>
        <field name="model">hr.employee</field>
        <field name="arch" type="xml">
            <form string="Employee" version="7.0">
                <sheet>
                    <field name="image_medium" widget='image' class="oe_left oe_avatar" />
                    <div class="oe_title">
                        <label for="full_name"   class="oe_edit_only"  />
                        <h1>
                            <field name="full_name" />
                        </h1>

                        <label for="category_ids" class="oe_edit_only" groups="base.group_hr_user" />
                        <field name="category_ids" widget="many2many_tags" placeholder="e.g. Part Time" groups="base.group_hr_user" />


                    </div>
                    <div class="oe_right oe_button_box" name="button_box">
                        <!-- Put here related buttons -->
                    </div>
                    <notebook>
                        <page string="Work Information">
                            <group>


                                <group string="Profile">
                                    <field name="epf_no" />
                                    <field name="name" string="Full Name" />
                                    <field name="surname" />
                                    <field name="given_name"  />
                                    <field name="user_id" string="System User Name" />
                                    <field name="active" invisible="1"/>
                                </group>


                                <group string="Position">
                                    <field name="coach_id" />
                                    <field name="parent_id" />
                                    <field name="department_id"  />
                                    <field name="work_location" />
                                    <field name="category" />
                                    <field name="job_id" options='{"no_open": True}' domain="[('state','!=','old')]"
                                        context="{'form_view_ref': 'hr.view_hr_job_employee_form'}" />
                                </group>

                                <group string="Contact Information - Official">
                                    <field name="mobile_phone" />
                                    <field name="cdma_no" />
                                    <field name="work_phone" />
                                    <field name="work_email" widget="email" />
                                    <field name="address_id"  />
                                </group>                                    
                                <group >
                                    <field name="company_id" groups="base.group_multi_company" on_change="onchange_company(company_id)" invisible="1" />
                                </group>

                            </group>
                            <field name="notes" placeholder="Other Information ..."
                                colspan="4" />
                        </page>
                        <page string="Personal Information" groups="base.group_hr_manager">
                            <group>
                                <group string="Identification">
                                    <field name="identification_id" groups="base.group_hr_manager" />
                                    <field name="passport_number" />
                                    <field name="driver_license_number" />
                                    <field name="passport_id" groups="base.group_hr_manager"
                                        invisible="1" />
                                    <field name="bank_account_id" groups="base.group_hr_manager" />
                                    <field name="country_id" options='{"no_open": True}' groups="base.group_hr_manager" />
                                    <field name="raise" />


                                    <field name="otherid" groups="base.group_hr_manager"
                                        invisible="1" />
                                </group>
                                <group string="Contact Information">

                                    <field name="home_address" groups="base.group_hr_manager" />
                                    <field name="secondary_address" groups="base.group_hr_manager" />
                                    <field name="home_phone" groups="base.group_hr_manager" />
                                    <field name="emergency_contact_name" groups="base.group_hr_manager" />
                                    <field name="emergency_contact_no" groups="base.group_hr_manager" />
                                </group>
                                <group string="Status">
                                    <field name="gender" groups="base.group_hr_manager" />
                                    <field name="marital" groups="base.group_hr_manager" />
                                    <field name="spouse_name"
                                        attrs="{'invisible':[('marital', '!=', 'married')]}" groups="base.group_hr_manager" />


                                </group>
                                <group string="Birth" groups="base.group_hr_manager">
                                    <field name="blood_group" />
                                    <field name="birthday" groups="base.group_hr_manager" />
                                </group>
                                <group name="Polling_Info" string="Polling Info" groups="base.group_hr_manager">
                                    <field name="province" groups="base.group_hr_manager" />
                                    <field name="district" groups="base.group_hr_manager" />
                                    <field name="electorate" groups="base.group_hr_manager" />
                                    <field name="travelling_mode" />
                                </group>


                                <group string="Allocation" groups="base.group_hr_manager">
                                    <field name="budget_center" />
                                    <field name="hr_cost_center" />
                                </group>
                            </group>
                        </page>
                        <page string="HR Contracts" groups="base.group_hr_manager">
                            <group>
                                <group cols="4" colspan="2">
                                    <br></br>
                                    <separator string='Status Change'   colspan="2" />
                                    <field name="current_status" groups="base.group_hr_manager" />
                                    <field name="inactive_status" attrs="{'invisible':[('current_status', '!=', 'inactive')]}" groups="base.group_hr_manager" />

                                    <br></br>
                                    <separator string='Employee Documents' colspan="2" />
                                    <field name='documents_ids' nolabel='1' string="Documents Ids" colspan="2">
                                        <tree string='List' editable='bottom'>
                                            <field name='documents_ids' invisible="1" />
                                            <field name='name' groups="base.group_hr_manager" />
                                            <field name='type' groups="base.group_hr_manager" />
                                            <field name='in_out' groups="base.group_hr_manager" />
                                            <field name='date' groups="base.group_hr_manager" />
                                            <field name='documents' groups="base.group_hr_manager" />
                                        </tree>
                                    </field>
                                    <br/><br/>
                                </group>
                                <group cols="4" colspan="2">
                                    <separator string='Transfer Info' colspan="2" />
                                    <field name='transfer_ids' nolabel='1' string="transfer_ids">
                                        <tree string='List' editable='bottom'>
                                            <field name='transfer_ids' invisible="1" />
                                            <field name='transfer_date' groups="base.group_hr_manager" />
                                            <field name='from_dept_id' groups="base.group_hr_manager" />
                                            <field name='to_dept_id' groups="base.group_hr_manager" />
                                            <field name='name' groups="base.group_hr_manager" />
                                        </tree>
                                    </field>                                    
                                </group>

                                <group cols="4" colspan="2">
                                    <separator string='Company Given Items' colspan="2" />
                                    <field name='company_given_items' nolabel='1' string="company_given_items">
                                        <tree string='List' editable='bottom'>
                                            <field name='company_given_items_id' invisible="1" />
                                            <field name='name' groups="base.group_hr_manager" />
                                            <field name='issue_date' groups="base.group_hr_manager" />
                                            <field name='item_type' groups="base.group_hr_manager" />
                                            <field name='ref_no' groups="base.group_hr_manager" />
                                            <field name='received_date' groups="base.group_hr_manager" />
                                            <field name='description' groups="base.group_hr_manager" />        
                                        </tree>
                                    </field>                                    
                                </group>

                            <group string="Leaves" invisible="1" />
                            <group string="Contract" invisible="1" />
                            <!--
                                <group>
                                    <field name="annual" groups="base.group_hr_manager" /> <field 
                                        name="casual" groups="base.group_hr_manager" /> <field name="sick" groups="base.group_hr_manager" 
                                        />
                                </group> -->


                            </group>
                        </page>
                        <page string="Achievements" groups="base.group_hr_manager">
                            <separator string='Educational Quilifications' />
                            <field name='qualification' nolabel='1' string="Education">
                                <tree string='List' editable='bottom'>
                                    <field name='qualification_id' invisible="1" />
                                    <field name='study_place' groups="base.group_hr_manager" />
                                    <field name='achievement' groups="base.group_hr_manager" />
                                    <field name='ach_name' groups="base.group_hr_manager" />
                                    <field name='partly_fully' groups="base.group_hr_manager" />
                                    <field name='university_institute' groups="base.group_hr_manager" />
                                    <field name='study_field' groups="base.group_hr_manager" />
                                    <field name='date' groups="base.group_hr_manager" />
                                </tree>
                            </field>
                            <br></br>
                            <separator string='Previous Work Experience' />
                            <field name='experience' nolabel='1' string="Education">
                                <tree string='List' editable='bottom'>
                                    <field name='experience_id' invisible="1" />
                                    <field name='old_job' groups="base.group_hr_manager" />
                                    <field name='old_company' groups="base.group_hr_manager" />
                                    <field name='location_name' groups="base.group_hr_manager" />

                                    <field name='str_date' groups="base.group_hr_manager" />
                                    <field name='end_date' groups="base.group_hr_manager" />
                                </tree>
                            </field>

                            <br></br>
                            <separator string='Employee Training' />
                            <field name='training' nolabel='1' string="Employee Training">
                                <tree string='List' editable='bottom'>
                                    <field name='training_ids' invisible="1" />
                                    <field name='training' groups="base.group_hr_manager" />
                                    <field name='place' groups="base.group_hr_manager" />
                                    <field name='area' groups="base.group_hr_manager" />
                                    <field name='str_date' groups="base.group_hr_manager" />
                                    <field name='end_date' groups="base.group_hr_manager" />
                                    <field name='info' groups="base.group_hr_manager" />
                                </tree>
                            </field>


                            <separator string='Skills' groups="base.group_hr_manager" />
                            <field name="skills" placeholder="Skills..."
                                groups="base.group_hr_manager" />
                            <separator string='Interests' groups="base.group_hr_manager" />
                            <field name="interests" placeholder="Interests..."
                                groups="base.group_hr_manager" />

                            <separator string='Prizes' groups="base.group_hr_manager" />
                            <field name="prizes" groups="base.group_hr_manager" />
                            <separator string='Scholarships' groups="base.group_hr_manager" />
                            <field name="scholarships" groups="base.group_hr_manager" />

                        </page>
                        <page string="Promotions" groups="base.group_hr_manager">
                            <separator string='Employee Promotions' />
                            <field name='promotions' nolabel='1' string="Employee Promotions">
                                <tree string='List' editable='bottom'>
                                    <field name='promotion_ids' invisible="1" />
                                    <field name='old_title' groups="base.group_hr_manager" />
                                    <field name='promoted_to' groups="base.group_hr_manager" />
                                    <field name='effect_date' groups="base.group_hr_manager" />
                                </tree>
                            </field>

                        </page>
                        <page string="Other Info" groups="base.group_hr_manager">
                            <separator string='Dependents Info' />
                            <field name='dependency_ids' nolabel='1' string="dependency ids">
                                <tree string='List' editable='bottom'>
                                    <field name='dependency_ids' invisible="1" />        
                                    <field name='type' groups="base.group_hr_manager" />
                                    <field name='name' groups="base.group_hr_manager" />
                                    <field name='occupation' groups="base.group_hr_manager" />
                                    <field name='date_of_birth' groups="base.group_hr_manager" />
                                    <field name='dependant' groups="base.group_hr_manager" />
                                    <field name='sex' groups="base.group_hr_manager" />
                                    <field name='entitle_for_medicle_scheme' groups="base.group_hr_manager" />
                                    <field name='company_given_benefits' groups="base.group_hr_manager" />
                                </tree>
                            </field>
                            <br/><br/>
                            <separator string='Health Info' />
                            <field name='health_info_ids' nolabel='1' string="health_info_ids">
                                <tree string='List' editable='bottom'>
                                    <field name='health_info_ids' invisible="1" />        
                                    <field name='name' groups="base.group_hr_manager" />
                                    <field name='from_date' groups="base.group_hr_manager" />
                                    <field name='to_date' groups="base.group_hr_manager" />
                                    <field name='hospitalized' groups="base.group_hr_manager" />
                                    <field name='comment' groups="base.group_hr_manager" />
                                    <field name='documents' groups="base.group_hr_manager" />
                                </tree>
                            </field>
                            <br/><br/>
                            <separator string='Legal Info' />
                            <field name='legal_info_ids' nolabel='1' string="legal_info_ids">
                                <tree string='List' editable='bottom'>
                                    <field name='legal_info_ids' invisible="1" />        
                                    <field name='name' groups="base.group_hr_manager" />
                                    <field name='type' groups="base.group_hr_manager" />
                                    <field name='year' groups="base.group_hr_manager" />
                                    <field name='outcome' groups="base.group_hr_manager" />
                                    <field name='venue' groups="base.group_hr_manager" />
                                    <field name='date' groups="base.group_hr_manager" />
                                    <field name='documents' groups="base.group_hr_manager" />
                                </tree>
                            </field>
                        </page>
                    </notebook>
                </sheet>
            </form>
        </field>
    </record>

and here shows my python code in hr.py[i do some changes]

class hr_employee(osv.osv):
    _name = "hr.employee"
    _description = "Employee"
    _inherits = {'resource.resource': "resource_id"}

    def _get_image(self, cr, uid, ids, name, args, context=None):
        result = dict.fromkeys(ids, False)
        for obj in self.browse(cr, uid, ids, context=context):
            result[obj.id] = tools.image_get_resized_images(obj.image)
        return result

    def _set_image(self, cr, uid, id, name, value, args, context=None):
        return self.write(cr, uid, [id], {'image': tools.image_resize_image_big(value)}, context=context)

    _columns = {
        'name_related': fields.related('resource_id', 'name', type='char', string='Full Name', readonly=True, store=True),

        'given_name': fields.char('Given Name', size=30),
        'surname': fields.char('Surname', size=20),
        'maiden_name': fields.char('Maiden Name', size=20),
        'blood_group': fields.many2one('hr.blood.group', 'Blood Group'),
        'age': fields.float('age'),
        'driver_license_number': fields.char('Driver License', size=20),
        'passport_number': fields.char('Passport', size=20),
        'passport_expiry_date': fields.date('Passport expiry date'),
        'religion' : fields.date('Religion'),
        'distance_from work_place' : fields.date('Distance from work Place'),
        'mode_of_travelling' : fields.date('Mode of travelling'),
        'travelling_mode':fields.char('Travelling Mode', size=5),
        'province': fields.many2one('res.province', 'Province'),
        'district': fields.many2one('res.district', 'District'),
        'electorate': fields.many2one('res.electorate', 'Electorate'),


        'country_id': fields.many2one('res.country', 'Nationality'),
        'birthday': fields.date("Date of Birth"),
        'ssnid': fields.char('SSN No', size=32, help='Social Security Number'),
        'sinid': fields.char('SIN No', size=32, help="Social Insurance Number"),

        'full_name': fields.char('Name with initials', size=60),
        'cdma_no': fields.char('Fixed/Direct No', size=32),
        'inactive_status': fields.selection([('suspend', 'Suspend'), ('interdict', 'Interdict'), ('terminate', 'Terminate')], 'Inactive Status'),
        'current_status': fields.selection([('active', 'Active'), ('inactive', 'Inactive')], 'Current Status'),
        'company_given_items': fields.one2many('company.given.items','company_given_items_id', 'Company Given Items'),
        'identification_id': fields.char('NIC No', size=32),
        'otherid': fields.char('Other Id', size=64),
        'gender': fields.selection([('male', 'Male'), ('female', 'Female')], 'Gender'),
        'marital': fields.selection([('single', 'Single'), ('married', 'Married'), ('widower', 'Widower'), ('divorced', 'Divorced')], 'Marital Status'),
        'department_id':fields.many2one('hr.section.n.registration', 'Attached To'),
        'address_id': fields.many2one('hr.address', 'Address'),

        #'bank_account_id':fields.many2one('res.partner.bank', 'Bank Account Details', domain="[('partner_id','=',address_home_id)]", help="Employee bank salary account"),
        'bank_account_id':fields.many2one('hr.branch.registration', 'Bank Account Details'),
        'mobile_phone': fields.char('Mobile', size=32, readonly=False),
        'work_phone': fields.char('Extension', size=32, readonly=False),
        'work_email': fields.char('Email', size=240),
        'work_location': fields.char('Office Location', size=32),
        'notes': fields.text('Notes'),
        'parent_id': fields.many2one('hr.employee', 'Reporting To'),
        'category_ids': fields.many2many('hr.employee.category', 'employee_category_rel', 'emp_id', 'category_id', 'Tags'),
        'child_ids': fields.one2many('hr.employee', 'parent_id', 'Subordinates'),
        'resource_id': fields.many2one('resource.resource', 'Resource', ondelete='cascade', required=True),
        'coach_id': fields.many2one('hr.employee', 'Immediate Supervisor'),  # Coach changed to Immediate Supervisor
        'job_id': fields.many2one('hr.job', 'Designation'),  # #
        'spouse_name': fields.char('Spouse Name', size=240),  # #
        'home_address': fields.char('Present Address', size=240),  # #
        'home_phone': fields.char('Home Phone', size=240),  # #
        'secondary_address': fields.char('Permanent Address', size=240),  # #
        'secondary_phone': fields.char('Permanent Phone', size=240),  # #
        'emergency_contact_name': fields.char('Emergency Cont Name', size=240),  # #
        'emergency_contact_no': fields.char('Emergency Cont No', size=240),  # #
        'raise': fields.selection([('sinhalese', 'Sinhalese'), ('tamil', 'Tamil'), ('muslim', 'Muslim'), ('berger', 'Berger')], 'Race'),  # #

        'annual': fields.integer('Annual Leaves', size=240),  # #
        'casual': fields.integer('Casual Leaves', size=240),  # #
        'sick': fields.integer('Sick Leaves', size=240),  # #
        'qualification':fields.one2many('hr.qulifications', 'qualification_id', 'Qualification ', ondelete="cascade"),
        'experience':fields.one2many('hr.experience', 'experience_id', 'Experience ', ondelete="cascade"),
        'promotions':fields.one2many('hr.promotions', 'promotion_ids', 'Promotions ', ondelete="cascade"),
        'training':fields.one2many('hr.training', 'training_ids', 'Training ', ondelete="cascade"),

        'prizes': fields.text('prizes'),
        'scholarships': fields.text('Scholarships'),        

        'skills': fields.text('Employee Skills'),
        'interests': fields.text('Employee Interests'),
        # image: all image fields are base64 encoded and PIL-supported
        'image': fields.binary("Photo",
            help="This field holds the image used as photo for the employee, limited to 1024x1024px."),
        'image_medium': fields.function(_get_image, fnct_inv=_set_image,
            string="Medium-sized photo", type="binary", multi="_get_image",
            store={
                'hr.employee': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
            },
            help="Medium-sized photo of the employee. It is automatically "\
                 "resized as a 128x128px image, with aspect ratio preserved. "\
                 "Use this field in form views or some kanban views."),
        'image_small': fields.function(_get_image, fnct_inv=_set_image,
            string="Smal-sized photo", type="binary", multi="_get_image",
            store={
                'hr.employee': (lambda self, cr, uid, ids, c={}: ids, ['image'], 10),
            },
            help="Small-sized photo of the employee. It is automatically "\
                 "resized as a 64x64px image, with aspect ratio preserved. "\
                 "Use this field anywhere a small image is required."),
        'passport_id':fields.char('Passport No', size=64),
        'color': fields.integer('Color Index'),
        'city': fields.related('address_id', 'city', type='char', string='City'),
        'login': fields.related('user_id', 'login', type='char', string='Login', readonly=1),
        'last_login': fields.related('user_id', 'date', type='datetime', string='Latest Connection', readonly=1),


        'reporting_designation': fields.many2one('hr.job', 'reporting designation'),
        'budget_center': fields.many2one('hr.budget.center', 'Budget Center'),
        'hr_cost_center': fields.many2one('hr.cost.center', 'Cost Center'),
        'category': fields.many2one('hr.category', 'Employment Type'),
        'location': fields.many2one('hr.location', 'Location'),     

        'living_situation': fields.char('Living situation', ),
        'monthly_income': fields.float('Monthly income', ),
        'no_of_dependants': fields.integer('No of dependants'),
        'no_of_children': fields.integer('No of children'),

        'mother_name':fields.char('Mother Name', size=64),
        'm_date_of_birth': fields.date('Date of birth'),
        'm_age': fields.float('Age', ),
        'm_occupation':fields.char('Occupation', size=64),
        'm_employer_name_address':fields.char('Employer name & Address', size=64),
        'm_entitled_for_medical_scheme': fields.boolean('Medical-entitle'),
        'm_alive_or_dead': fields.selection([('alive', 'Alive'), ('dead', 'Dead')], 'Alive or Dead'),

        'father_name':fields.char('Father Name', size=64),
        'f_date_of_birth': fields.date('Date of birth'),
        'f_age': fields.float('Age', ),
        'f_occupation':fields.char('Occupation', size=64),
        'f_employer_name_address':fields.char('Employer name & Address', size=64),
        'f_entitled_for_medical_scheme': fields.boolean('Medical-entitle'),
        'f_alive_or_dead': fields.selection([('alive', 'Alive'), ('dead', 'Dead')], 'Alive or Dead'),

        'epf_no': fields.char('EPF No', size=20),
        'epf_nominee':fields.char('EPF Nominee', size=64),
        'relation_details':fields.char('Relation Details', size=64),        

        'dependency_ids':fields.one2many('hr.dependency', 'dependency_ids', 'Dependency ', ondelete="cascade"),
        'health_info_ids':fields.one2many('hr.health', 'health_info_ids', 'Health ', ondelete="cascade"),
        'legal_info_ids':fields.one2many('hr.legal', 'legal_info_ids', 'Legal ', ondelete="cascade"),
        'documents_ids':fields.one2many('hr.documents', 'documents_ids', 'Documents ', ondelete="cascade"),
        'transfer_ids':fields.one2many('hr.transfers', 'transfer_ids', 'Transfers ', ondelete="cascade"),
    }

    _order = 'name_related'

    def create(self, cr, uid, data, context=None):
        employee_id = super(hr_employee, self).create(cr, uid, data, context=context)
        try:
            (model, mail_group_id) = self.pool.get('ir.model.data').get_object_reference(cr, uid, 'mail', 'group_all_employees')
            employee = self.browse(cr, uid, employee_id, context=context)
            self.pool.get('mail.group').message_post(cr, uid, [mail_group_id],
                body=_('Welcome to %s! Please help him/her take the first steps with HR System!') % (employee.name),
                subtype='mail.mt_comment', context=context)
        except:
            pass  # group deleted: do not push a message
        return employee_id

    def unlink(self, cr, uid, ids, context=None):
        resource_ids = []
        for employee in self.browse(cr, uid, ids, context=context):
            resource_ids.append(employee.resource_id.id)
        return self.pool.get('resource.resource').unlink(cr, uid, resource_ids, context=context)

    def onchange_address_id(self, cr, uid, ids, address, context=None):
        if address:
            address = self.pool.get('res.partner').browse(cr, uid, address, context=context)
            return {'value': {'work_phone': address.phone, 'mobile_phone': address.mobile}}
        return {'value': {}}

    def onchange_company(self, cr, uid, ids, company, context=None):
        address_id = False
        if company:
            company_id = self.pool.get('res.company').browse(cr, uid, company, context=context)
            address = self.pool.get('res.partner').address_get(cr, uid, [company_id.partner_id.id], ['default'])
            address_id = address and address['default'] or False
        return {'value': {'address_id' : address_id}}

    def onchange_department_id(self, cr, uid, ids, department_id, context=None):
        value = {'parent_id': False}
        if department_id:
            department = self.pool.get('hr.department').browse(cr, uid, department_id)
            value['parent_id'] = department.manager_id.id
        return {'value': value}

    def onchange_given_name(self, cr, uid, ids, given_name, context=None):
        if given_name:
            return {'value': {'user_id' : user_id}}
        else:
            return {'value': {'user_id' : user_id}}

    def onchange_user(self, cr, uid, ids, user_id, context=None):
        work_email = False
        if user_id:
            work_email = self.pool.get('res.users').browse(cr, uid, user_id, context=context).email
        return {'value': {'work_email' : work_email}}

    def _get_default_image(self, cr, uid, context=None):
        image_path = addons.get_module_resource('hr', 'static/src/img', 'default_image.png')
        return tools.image_resize_image_big(open(image_path, 'rb').read().encode('base64'))

    _defaults = {
        'image': _get_default_image,
        'color': 0,
        'country_id':130,
    }

    def _check_recursion(self, cr, uid, ids, context=None):
        level = 100
        while len(ids):
            cr.execute('SELECT DISTINCT parent_id FROM hr_employee WHERE id IN %s AND parent_id!=id', (tuple(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 hierarchy of Employee(s).', ['parent_id']),
    ]

hr_employee()