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import json
from django.db import models
# Create your models here.
class Company(models.Model):
stock_code = models.CharField(max_length=20)
name = models.CharField(max_length=100)
class StockIndex(models.Model):
company = models.ForeignKey(Company, on_delete=models.CASCADE)
ri_qi = models.CharField(max_length=30)
zi_jin = models.IntegerField(default=0)
qiang_du = models.IntegerField(default=0)
feng_xian = models.IntegerField(default=0)
zhuan_qiang = models.IntegerField(default=0)
chang_yu = models.IntegerField(default=0)
jin_zi = models.IntegerField(default=0)
zong_he = models.IntegerField(default=0)
class HistoryData(models.Model):
company = models.ForeignKey(Company, on_delete=models.CASCADE)
data = models.TextField() # 字符串类型
start_date = models.CharField(max_length=30)
def set_data(self,list_data): # 将list类型数据，转为字符串存储
try:
start_da = list_data[0][0] # 记录第一条数据的日期
data_json = json.dumps(list_data) # 可以将list或dict类型 转为字符串
except (KeyError,TypeError,IndexError):
raise Exception("list_data must be 2 dimensions list.")
else:
self.start_date = start_da
self.data = data_json
def get_data(self):
return json.loads(self.data) # 可以将字符串 转为list或dict类型
class PredictData(models.Model):
company = models.ForeignKey(Company, on_delete=models.CASCADE)
data = models.TextField() # 字符串类型
start_date = models.CharField(max_length=30)
def set_data(self, list_data): # 将list类型数据，转为字符串存储
try:
st_da = list_data[0][0] # 记录第一条数据的日期
data_json = json.dumps(list_data) # 可以将list或dict类型 转为字符串
except (KeyError,TypeError):
raise Exception("list_data must be 2 dimensions list.")
else:
self.start_date = st_da
self.data = data_json
def get_data(self):
return json.loads(self.data) # 可以将字符串 转为list或dict类型
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