一,从数据库中取数据，显示在mypanel的index页面
1.tables.py
class InstancesTable(tables.DataTable): 定义index页面的字段为数据库里表的字段 这里定义了，name、age字段 （数据库中的id字段是自增的主键）
2.urls.py
url(r'^$', views.IndexView.as_view(), name='index'),
3.views.py
from openstack_dashboard.dashboards.mydashboard.testpanel import tabs as mydashboard_tabs
class IndexView(tabs.TabbedTableView):
tab_group_class =mydashboard_tabs.YourpanelTabs
template_name = 'mydashboard/mypanel/index.html'
4.tabs.py
from openstack_dashboard.dashboards.mydashboard.mypanel import usemysql
class YourpanelTabs(tabs.TabGroup):
slug = "yourpanel_tabs"
tabs = (UsersTab,) //需要修改
tabs = (InstanceTab,BooksTab,)
sticky = True
新加UsersTab
class UsersTab(tabs.TableTab):
name = _("Users Tab")
slug = "users_tab"
table_classes = (tables.InstancesTable,)
template_name = ("horizon/common/_detail_table.html")
preload = False
def has_more_data(self, table):
return []
def get_instances_data(self):
sql=usemysql.sql()
instances=sql.list()
return instances
5.新加usemysql.py文件，在这里对数据库进行操作
import MySQLdb
from openstack_dashboard import api
class sql():
db = MySQLdb.connect(user='', db='', passwd='', host=' ')
cursor = db.cursor()
def list(self):
self.cursor.execute('SELECT * FROM users ORDER BY id')
myarr=self.cursor.fetchall()
aa=[]
for i in range(len(myarr)):
aa.append(api.nova.Server({},False)) //要使从数据库取得的数据显示在mypanel的表格中，数据必须符合horizon定义的格式
aa[i].id=myarr[i][0]
aa[i].name=myarr[i][0+1]
aa[i].age=myarr[i][0+2]
instances=aa
return instances
二，删除user
1.tables.py
from openstack_dashboard.dashboards.mydashboard.mypanel import usemysql
from openstack_dashboard import policy
from django.utils.translation import ungettext_lazy
class InstancesTable(tables.DataTable):
class Meta:
row_actions = (DeleteUser,) //需要新加
添加DeleteUser类
class DeleteUser(policy.PolicyTargetMixin, tables.DeleteAction):
@staticmethod
def action_present(count):
return ungettext_lazy(
u"Delete User",
u"Delete Users",
count
)
@staticmethod
def action_past(count):
return ungettext_lazy(
u"Deleted User",
u"Deleted Users",
count
)
def allowed(self, request, datum):
return True
def delete(self, request, obj_id):
sql=usemysql.sql()
sql.delete(obj_id)
return []
2.usemysql.py新加如下内容
class sql():
def delete(self,obj_id):
self.cursor.execute("DELETE FROM users WHERE id = '"+obj_id+"'")
self.db.commit()
三，增加user
1.tables.py
class InstancesTable(tables.DataTable):
class Meta:
table_actions = (CreateUser,)
新加CreateUser 类
class CreateUser(tables.LinkAction):
name = "User"
verbose_name = _("Create User")
url = "horizon:mydashboard:mypanel:create"
classes = ("ajax-modal",)
icon = "plus"
def allowed(self, request, instance=None):
return True
2.urls.py
url(r'^create/$', views.CreateUserView.as_view(), name='create'),
3.views.py新加CreateUserView类
from horizon import forms
from openstack_dashboard.dashboards.mydashboard.mypanel import forms as mydashboard_forms
from django.utils.translation import ugettext_lazy as _
from django.core.urlresolvers import reverse_lazy
class CreateUserView(forms.ModalFormView):
form_class = mydashboard_forms.CreateUser
form_id = "create_image_form"
modal_header = _("Create An User")
submit_label = _("Create User")
submit_url = reverse_lazy("horizon:mydashboard:mypanel:create")
template_name = 'mydashboard/mypanel/create.html'
context_object_name = 'user'
success_url = reverse_lazy("horizon:mydashboard:mypanel:index")
page_title = _("Create An User")
def get_initial(self):
initial = {}
for name in [
'name',
'age',
]:
tmp = self.request.GET.get(name)
if tmp:
initial[name] = tmp
return initial
4.forms.py 新加CreateUser类
from openstack_dashboard.dashboards.mydashboard.mypanel import usemysql
from django.utils.translation import ugettext_lazy as _
class CreateUser(forms.SelfHandlingForm):
id = forms.CharField(label=_("Person ID"),
widget=forms.HiddenInput(),
required=False)
name = forms.CharField(max_length=255, label=_("Person Name"))
age = forms.CharField(max_length=255, label=_("Person Age"))
def __init__(self, request, *args, **kwargs):
super(CreateUser, self).__init__(request, *args, **kwargs)
def handle(self,request, data):
sql=usemysql.sql()
sql.create(data)
return []
5.usermysql.py新加create方法
def create(self,data):
aa="insert into users(name,age) values('"+data['name']+"','"+data['age']+"')"
self.cursor.execute(aa)
self.db.commit()
6.在templates/mypanel下新加create.html与_create.html
create.html
{% extends 'base.html' %}
{% load i18n %}
{% block title %}{% trans "Create An User" %}{% endblock %}
{% block main %}
{% include 'project/images/images/_create.html' %}
{% endblock %}
_create.html
{% extends "horizon/common/_modal_form.html" %}
{% load i18n %}
{% block ng_controller %}ImageFormController as ctrl{% endblock %}
{% block form_attrs %}enctype="multipart/form-data"{% endblock %}
{% block modal-body-right %}
<h3>{% trans "Description:" %}</h3>
{% endblock %}
四、修改user
1.tables.py
from horizon import forms
from openstack_dashboard import api
class InstancesTable(tables.DataTable):
name = tables.Column("name", verbose_name=_("Name"),form_field=forms.CharField(max_length=64),update_action=UpdateCell)
age = tables.Column("age", verbose_name=_("Age1"),form_field=forms.CharField(max_length=64),update_action=UpdateCell)
在字段后面新加：form_field=forms.CharField(max_length=64),update_action=UpdateCell
class Meta:
row_class = UpdateRow //新加
新加UpdateCell与UpdateRow
class UpdateRow(tables.Row):
ajax = True
def get_data(self, request, id):
user=api.nova.Server({},False)
user.id=id
return user
class UpdateCell(tables.UpdateAction):
def allowed(self, request, instance, cell):
policy_rule = (("identity", "identity:update_project"),)
return True
def update_cell(self, request, datum, id,cell_name, new_value):
aa=datum
sql=usemysql.sql()
sql.online(id,cell_name,new_value)
return True
2.usemysql.py 新加online函数
def online(self,id,cell_name,new_value):
if cell_name=='name':
self.cursor.execute("update users set name='"+new_value+"' where id='"+id+"'")
elif cell_name=='age':
self.cursor.execute("update users set age='"+new_value+"' where id='"+id+"'")
self.db.commit()