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