view details in tree view from original model (Many2one) - Odoo 9 - foreign-keys

Question

I have simple database which has 3 models as follows
1- camps (to store Camps master data)
2- players (to store players master data)
3- players_camps (to store camps each player has attended)
the code for all models as follows:
class Camps(Model):
_name = 'camps'
name = Char('Name')
organizer = Char()
date_from = Date('From date')
date_to = Date('To date')
place = Char()
supervisor = Char()
notes = Text()
class players(Model):
_name = 'player'
name = Char()
camps = One2many('player_camps', 'player')
class player_camps(Model):
_name = 'player_camps'
camps = Many2one('camps', on_delete='CASCADE', on_update='CASCADE')
organizer = Many2one('camps', on_delete='CASCADE', on_update='CASCADE')
place = Many2one('camps', on_delete='CASCADE', on_update='CASCADE')
date_from = Many2one('camps', on_delete='CASCADE', on_update='CASCADE')
date_to = Many2one('camps', on_delete='CASCADE', on_update='CASCADE')
result = Integer(default=0)
when I display players camps (using One2many widget in the view ) I can see only the camp name but the other data
like organizer or place (which are stored in master model of camps) not shown
how can I show this data in the tree view of the players camps view ?
Edit: here is view file for players
Note: I have removed some fields from players view and its model to make the code shorter
<openerp>
<data>
<!--Form view -->
<record id="Player_form_view" model="ir.ui.view">
<field name="model">player</field>
<field name="arch" type="xml">
<form>
<notebook>
<page name="basic_data" string="Basic Data">
<group>
<field name="name"/>
</group>
</page>
<page name="camps" string="Camps">
<field name="camps">
<tree>
<field name="camp"/>
<field name="instructor"/>
<field name="organizer"/>
<field name="place"/>
<field name="date_from"/>
<field name="date_to"/>
<field name="result"/>
<field name="notes"/>
</tree>
</field>
</page>
</notebook>
</form>
</field>
</record>
</data>
</openerp>

Answer 1

Please remove widget from one2many list and in <tree> tag declared field as many as you want to show.
Try with following code:
<openerp>
<data>
<!--Form view -->
<record id="player_form_view" model="ir.ui.view">
<field name="name">player.form.view</field>
<field name="model">spogaze.player</field>
<field name="arch" type="xml">
<form>
<notebook>
<page name="basic_data" string="Basic Data">
<group>
<field name="name"/>
</group>
</page>
<page name="exams" string="Exams">
<field name="exams">
<tree string="Exam" editable="bottom">
<field name="camp"/>
<field name="instructor"/>
<field name="organizer"/>
<field name="place"/>
<field name="date_from"/>
<field name="date_to"/>
<field name="result"/>
<field name="notes"/>
</tree>
</field>
</page>
</notebook>
</form>
</field>
</record>
</data>
</openerp>