Django的cmdb探索与开发（一）

经过上次对itchat调用zabbixAPI的研究之后对python的兴趣一发不可收拾，近期上面要求研究一下cmdb，于是自己做了一个简单的cmdb系统 。对其实踩坑的地方做一些记录，由于之前对于前端的知识也是一窍不通，所以很多问题可能也比较初级。

环境：python 3.6.5 ，django 1.8.16。前端模板是网上找到的，希望通过这次研究在前端js/ajax/css上也能有所提升。

1、项目目录，页面存在templates

2、settings.py设置，还是注意下Setting的配置。当时STATICFILES_DIRS字段少写了一个“s”加载不了静态，排错排了一天。

"""
Django settings for CMDB project.

Generated by 'django-admin startproject' using Django 1.8.16.

For more information on this file, see
https://docs.djangoproject.com/en/1.8/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/1.8/ref/settings/
"""

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/1.8/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'z0z7(!&_&mxf0rafg^3c$+k60ic@#n2%g)=0o8p*_!nb5@h=7p'

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = []


# Application definition

INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    "users"
)

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    # 'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    'django.middleware.security.SecurityMiddleware',
)

ROOT_URLCONF = 'CMDB.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [
            os.path.join(BASE_DIR,"templates").replace("\","/")
        ],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'CMDB.wsgi.application'


# Database
# https://docs.djangoproject.com/en/1.8/ref/settings/#databases

DATABASES = {
    'default': {
        'ENGINE' : 'django.db.backends.mysql',
        'NAME' : 'cmdb',
        'PASSWORD' : 'cmdb',
        'USER' : 'cmdb',
        'HOST':'192.168.58.130',
        'PORT':'3306'
        # 'ENGINE': 'django.db.backends.sqlite3',
        # 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}


# Internationalization
# https://docs.djangoproject.com/en/1.8/topics/i18n/

LANGUAGE_CODE = 'zh-hans'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.8/howto/static-files/

STATIC_URL = '/static/'
STATICFILES_DIRS = (

    os.path.join(BASE_DIR,"static").replace("\","/"),

    )

MEDIA_ROOT = BASE_DIR + '/excel/' # BASE_DIR 是项目所在的目录，这样文件就会存储在当前的开发目录下的一个`excel`的文件夹下
MEDIA_URL = '/excel/'

2、关于，model,这里就只贴devices和select下拉框的代码了。

class BaseModel(models.Model):     
　　delete_flag = models.CharField(max_length=4, verbose_name="删除标志")

class Devices(BaseModel):

    sn = models.CharField(max_length=32, verbose_name="序列号")
    Psn = models.CharField(max_length=32,verbose_name="资产编号")
    DataRoomID = models.IntegerField(verbose_name="机房ID")
    CabinetID = models.IntegerField(verbose_name="机柜ID")
    deviceType = models.IntegerField(verbose_name="设备类型")#1、网络设备 2、安全设备 3、服务器 4、虚拟机
    deviceMap = models.CharField(max_length=32, verbose_name="设备位置")
    company = models.CharField(max_length=32, verbose_name="设备品牌")
    model = models.CharField(max_length=32, verbose_name="设备型号")
    adminIP = models.CharField(max_length=32, verbose_name="管理IP")
    produceIP = models.CharField(max_length=32, verbose_name="业务IP")
    system = models.CharField(max_length=32, verbose_name="操作系统")
    uplinkdev = models.CharField(max_length=32, verbose_name="上联设备SN")
    downlinkdev = models.CharField(max_length=32, verbose_name="下联设备SN")
    lastLogin = models.DateField(verbose_name="更新时间")
    deviceUser = models.CharField(max_length=32,verbose_name="设备使用人")
    lastLoginUser = models.IntegerField(verbose_name="操作员ID")
    deviceDes = models.CharField(max_length=64, verbose_name="设备描述")
    DataRoom = models.CharField(max_length=32, verbose_name="机房位置")
    Uplinkport = models.CharField(max_length=32,verbose_name="上联口")
    Downlinkport = models.CharField(max_length=32, verbose_name="下联口")
    Memory = models.CharField(max_length=32, verbose_name="内存占用率")
    Cpu = models.CharField(max_length=32, verbose_name="cpu占用率")
    Disk = models.CharField(max_length=32, verbose_name="磁盘占用率")
    isVirtual = models.CharField(max_length=32, verbose_name="是否虚拟化")
    isActive = models.CharField(max_length=32,verbose_name="是否上线")
    isNomal = models.CharField(max_length=32,verbose_name="状态是否正常")

class ImportForm(forms.Form):
    Device_type_list = (
        (1, "服务器"),
        (2, "网络设备"),
        (3, "安全设备"),
        (4, "虚拟机"),
        (5, "交换机")
    )
    #固定下拉选项，Device_type为post值，widget为下拉内容，下同。
    device_type = forms.IntegerField(
        widget = forms.Select(choices=Device_type_list)
    )
    #动态不定下拉选项
    Dataroom_list = forms.IntegerField(
    widget=forms.Select()
    )
    def __init__(self,*args,**kwargs):
        super(ImportForm,self).__init__(*args,**kwargs)
        #查询数据库获取下拉内容，根据主键basemodel_ptr_id查询获取name字段。并赋值给选项
        self.fields['Dataroom_list'].widget.choices = Dataroom.objects.all().values_list('basemodel_ptr_id','name')

3、关于views
　　这部分涉及到功能。下一部分详细记录。