Django 1.10从CSV文件记录中手动提交数据库

Question

我需要将7,000天的小时温度数据（所以7 * 24 * 11,000条数据记录）的数据加载到我的模型11,000个站点。我需要一天做两次。使用自动提交非常慢。我想在从每个网站加载数据后提交。我有两个模型班，Lake和Tempdat。代码的本质在下面。我感谢您提供的任何帮助。 （！谢谢），我一直在寻找Django文档和其他例子在本网站的原子，但我需要更简单的指令

with open('iowa.csv', 'r+') as lakefile: 
    lakes = csv.reader(lakefile) 
    for lake in lakes: 
     gnis = lake[0] 

     temp_dat_filename = "T"+str(gnis)+".txt" 
     nameanddir=os.path.join(tempdatdir,str(temp_dat_filename)) 
     f = open(nameanddir, 'r+') 
     c = Lake.objects.get(GNIS=gnis) #Lake is the Class name 
     print(c) 

     for line in f: 
      list_of_line = line.rstrip().split() 
      date_pieces = list_of_line[0].split('-') 

      dateob = datetime.datetime(int(date_pieces[0]), int(date_pieces[1]), int(date_pieces[2]), int(list_of_line[1]), 0, 0) 
      temperature = list_of_line[2] 
      #NOTE: instead of commiting here for each record, I would to go through all the records (7days worth, then commit) 
      c.tempdat_set.create(LakeTemp = temperature, ModelDate = dateob)` 

Answer 1

可以使用bulk_create，应该帮助 - >https://docs.djangoproject.com/en/1.11/ref/models/querysets/#bulk-create