table of Contents:
1, automatic allocation (Redis)
- Batch Import
2, micro-channel automatic binding
3, django's ORM can not do the operation, how to customize database operations
extra
’
4, report
The company's monthly sales performance
5, privileges
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1, the automatic assignment, you use the automatic allocation at what time?
A: Marketing or Operations attracted new customers, a single (batch) data entry time, automatic assignment.
2, that is how you automatically assign it?
A: Based on the list redis implemented. It corresponds with the queue.
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An automatic dispensing (Redis)
Put the data cache, in order to speed
redis support persistent, if shut down after the data is already in the file will be placed
To buy a computer: redis server software installed
- The server has a working network IP: 47.93.4.198
- Port: 6379
Our computer: install the module links redis
- pip instaill redis
redis: that white is a software server, helps us save data in memory inside
conn.lpush ( "names": "sss") # Wang Libian put value
conn.lpush ( "names": * [local laws and regulations "," dfgdf "]) # put more value added from the left, equivalent to insert
conn.rpush ( "names": * [local laws and regulations "," dfgdf "]) # put more value added from behind, equivalent to append
conn.lpop ( "names") # a value a from the inside, bytes type
conn.rpop ( "names") # values from the inside, bytes type
conn.llen ( "names") # View Length
Redis Import Conn = redis.Redis (Host = "192.168.20.150", Port = 6379) # =========== for string set, get set, a value obtained ======= ==== conn.set ( "K13", "v2") # written on a key to the remote redis in val = conn.get ( "k13") # get key-value pairs Print (Val) conn.set ( "names", "SS") val2 = conn.get ( "names") Print (val2) # =========== for the operation of the list: lpush operation and lpop operation, (from left to put value, the value from the left) ============= VAL4 = conn.lpush ( "names_s" * [ "swallow", "Liu"]) conn.lpush ( 'names_s', * [ 'the number', 'Luning']) # 'Lu Ning', 'the number', "Liu", "Swallow", conn.delete ( "names_s") V = conn.llen ( " names_s ") Print (conn.llen (" names_s ")). 4 # for I in Range (V): . Print (conn.lpop ( "names_s") decode ( "UTF-. 8")) # ========== for operations list: rpush operation and rpop operations (from the right to put values, ranging from the right) ====== conn.rpush ( "ABCD", [l, 2,3]) conn.rpush ( "ABCD", * [ "A", "B", "C"]) # [l, 2,3], A, b, c # * representatives are unpacked, if not * go into is a list of # conn.delete ( "ABCD") v = conn.llen ( "ABCD") # Print (v) # for i in the Range (V): Print (. conn.rpop ( "ABCD") decode ( "UTF-. 8")) # C, B, A, [l, 2,3]
Application in the project
Redis link, lists all the data on the redis where it rollback also placed inside redis
Turned out to be a iterator a value, we can now link redis, rpop a value of a
When the problem rollback (or not used), we can use it to add rpush it in, and then taken out
conn.lindex ( "said_id_list_origin", 0) # 0 corresponding to the value of the index View
The first run, only the database data
If the value is not accessible to the database, then the direct return None
Obtaining a next one, if taken to None, you have to take complete, then the standby list data back inside the discharge
Allocation table data inside if you need to update, then reset.
import redis from crm import models POOL = redis.ConnectionPool(host='47.93.4.198', port=6379, password='123123') CONN = redis.Redis(connection_pool=POOL) class AutoSale(object): @classmethod def fetch_users(cls): # [obj(销售顾问id,num),obj(销售顾问id,num),obj(销售顾问id,num),obj(销售顾问id,num),] sales = models.SaleRank.objects.all().order_by('-weight') sale_id_list = [] count = 0 while True: flag = False for row in sales: if count < row.num: sale_id_list.append(row.user_id) flag = True count += 1 if not flag: break if sale_id_list: CONN.rpush('sale_id_list', *sale_id_list) # 自动pop数据 CONN.rpush('sale_id_list_origin', *sale_id_list) # 原来的数据 return True return False @classmethod def get_sale_id(cls): # 查看原来数据是否存在 sale_id_origin_count = CONN.llen('sale_id_list_origin') if not sale_id_origin_count: # 去数据库中获取数据，并赋值给： 原数据，pop数据 status = cls.fetch_users() if not status: return None user_id = CONN.lpop('sale_id_list') if user_id: return user_id reset = CONN.get('sale_id_reset') # 要重置 if reset: CONN.delete('sale_id_list_origin') status = cls.fetch_users() if not status: return None CONN.delete('sale_id_reset') return CONN.lpop('sale_id_list') else: ct = CONN.llen('sale_id_list_origin') for i in range(ct): v = CONN.lindex('sale_id_list_origin', i) CONN.rpush('sale_id_list', v) return CONN.lpop('sale_id_list') @classmethod def reset(cls): CONN.set('sale_id_reset',1) @classmethod def rollback(cls,nid): CONN.lpush('sale_id_list',nid)
总结：
1、什么是redis？
2、set，get对字符串做操作的，
3、lpush,rpush,lpop,rpop对于列表做操作的
lindex：取索引
llen() ：长度
4、 delete :删除 ：公共的
扩展：
redis和我们的数据库一样，不能每次都链接，redis支持连接池
不推荐
推荐：
二、批量导入
上传excel文件,页面上显示
上传文件
1、拿到文件名和文件大小
file_obj.field_name: 文件名，
file_obj.size :文件大小
2、打开文件读取，以写的方式存起来
3、安装xlrd-1.1.0的两种方式
python setup.py build
pip instail xlrd
4、打开excle文件做操作。拿到每一个单元格的数据，写入数据库
吧第一行排除，可以吧列表转换成字典，录入到数据库
5、作业
自动获取ID
录入客户表
录入分配表
不在创建临时xlsx文件，写在内存里面，
写上一个模板文件，让用户去下载
6、文件，用户下载文件的两种方式
吧文件写在静态文件里面，用a标签去跳转。但是这种当是可能不行
设置响应头（搜索django如何实现文件下载）
三、微信自动绑定
前提：公司里的每一个人都得关注公众号，才可以给推送消息