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CMDB实现数据展示功能部分代码。
views.py
def asset(request):
asset = Asset.objects.all()
return render_to_response("asset.html",{'asset': asset})
models.py
class Asset(models.Model):
ipaddr = models.CharField(max_length=20, verbose_name=u'IP地址', primary_key=True) #需定义primary_key,否则会自动创建id列
hostname = models.CharField(max_length=30, verbose_name=u'主机名')
nodes = models.CharField(max_length=20, verbose_name=u'应用节点')
applications = models.CharField(max_length=30, verbose_name=u'应用名')
group = models.CharField(max_length=20, verbose_name=u'应用组名')
memory = models.CharField(max_length=5, verbose_name='内存大小')
env = models.CharField(max_length=5, verbose_name='环境变量')
flag = models.PositiveSmallIntegerField(verbose_name=u'flag')
#def __unicode__(self):
# return u'%s,%s,%s,%s,%s,%s,%s,%s' %(self.ipaddr, self.hostname, self.nodes, self.app, self.group, self.memory, self.disk, self.cpu)
class Meta:
db_table = 'fcenv_copy' #表名，默认为app名+类名
verbose_name = u'主机资产信息'
verbose_name_plural = u'主机资产信息管理'
asset.html
<table class="table table-striped table-bordered table-hover " id="editable" name="editable">
<thead class="fixedThead">
<tr>
<!-- <th class="text-center">
<input id="checkall" type="checkbox" class="i-checks" name="checkall" value="checkall" data-editable="false" onclick="check_all('asset_form')">
</th> -->
<th class="text-center" name="ip"> IP地址 </th>
<th class="text-center" width="80px"> 机器名 </th>
<th class="text-center"> 节点 </th>
<th class="text-center" width="300px"> 应用名称 </th>
<th class="text-center" width="100px"> 组别 </th>
<th class="text-center"> 内存 </th>
<th class="text-center" width="200px"> 环境变量 </th>
<th class="text-center"> flag </th>
<th class="text-center" width="200px"> 操作 </th>
</tr>
</thead>
<tbody class="scrollTbody">
{% for value in asset %}
<tr class="gradeX">
<td class="text-center">{{ value.ipaddr }}</a></td>
<td class="text-center hostname">{{ value.hostname }}</a></td>
<td class="text-center">{{ value.nodes }}</a></td>
<td class="text-center">{{ value.applications }}</a></td>
<td class="text-center">{{ value.group }}</a></td>
<td class="text-center">{{ value.memory }}</a></td>
<td class="text-center">{{ value.env }}</a></td>
<td class="text-center">{{ value.flag }}</a></td>
<td class="text-center" data-editable="false">
<a href="#" class="btn btn-xs btn-info">编辑</a>
<a value="#" class="conn btn btn-xs btn-warning">连接</a>
<a value="#" class="btn btn-xs btn-danger asset_del">删除</a>
</td>
{% endfor %}
</tr>
</tbody>
</table>以下是常用ORM操作：
# models.Tb1.objects.create(c1='xx', c2='oo') 增加一条数据，可以接受字典类型数据 **kwargs
# obj = models.Tb1(c1='xx', c2='oo') # obj.save() # 查 # # models.Tb1.objects.get(id=123) # 获取单条数据，不存在则报错（不建议） # models.Tb1.objects.all() # 获取全部 # models.Tb1.objects.filter(name='seven') # 获取指定条件的数据 # 删 # # models.Tb1.objects.filter(name='seven').delete() # 删除指定条件的数据 # 改 # models.Tb1.objects.filter(name='seven').update(gender='0') # 将指定条件的数据更新，均支持 **kwargs # obj = models.Tb1.objects.get(id=1) # 修改单条数据 # obj.c1 = '111' # obj.save() # 获取个数 # # models.Tb1.objects.filter(name='seven').count() # 大于，小于 # # models.Tb1.objects.filter(id__gt=1) # 获取id大于1的值 # models.Tb1.objects.filter(id__lt=10) # 获取id小于10的值 # models.Tb1.objects.filter(id__lt=10, id__gt=1) # 获取id大于1 且 小于10的值 # in # # models.Tb1.objects.filter(id__in=[11, 22, 33]) # 获取id等于11、22、33的数据 # models.Tb1.objects.exclude(id__in=[11, 22, 33]) # not in # contains # # models.Tb1.objects.filter(name__contains="ven") # models.Tb1.objects.filter(name__icontains="ven") # icontains大小写不敏感 # models.Tb1.objects.exclude(name__icontains="ven") # range # # models.Tb1.objects.filter(id__range=[1, 2]) # 范围bettwen and # 其他类似 # # startswith，istartswith, endswith, iendswith, # order by # # models.Tb1.objects.filter(name='seven').order_by('id') # asc # models.Tb1.objects.filter(name='seven').order_by('-id') # desc # limit 、offset # # models.Tb1.objects.all()[10:20] # group by from django.db.models import Count, Min, Max, Sum # models.Tb1.objects.filter(c1=1).values('id').annotate(c=Count('num')) # SELECT "app01_tb1"."id", COUNT("app01_tb1"."num") AS "c" FROM "app01_tb1" WHERE "app01_tb1"."c1" = 1 GROUP BY "app01_tb1"."id"
Many-to-one relationships 多表关联查询。
from django.db import models
class Reporter(models.Model):
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=30)
email = models.EmailField()
def __str__(self): # __unicode__ on Python 2
return "%s %s" % (self.first_name, self.last_name)
class Article(models.Model):
headline = models.CharField(max_length=100)
pub_date = models.DateField()
reporter = models.ForeignKey(Reporter, on_delete=models.CASCADE)
def __str__(self): # __unicode__ on Python 2
return self.headline
class Meta:
ordering = ('headline',)
>>> r.article_set.filter(headline__startswith='This')
<QuerySet [<Article: This is a test>]># Find all Articles for any Reporter whose first name is "John".
>>> Article.objects.filter(reporter__first_name='John')
<QuerySet [<Article: John's second story>, <Article: This is a test>]>效果图。
附件是样式文件。
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