回答編集履歴
2
修正
test
CHANGED
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@@ -31,3 +31,15 @@
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31
31
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super(MyModel, self).save(*args, **kwargs)
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32
32
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33
33
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```とかで、できそうです。
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34
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+
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35
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```Python
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36
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37
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class MyForm(forms.ModelForm):
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38
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39
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class Meta:
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40
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41
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model = MyModel
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42
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43
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fields = ["duration"]
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44
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45
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```
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1
修正
test
CHANGED
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@@ -7,3 +7,27 @@
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7
7
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duration = models.DurationField()
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8
8
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9
9
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```[参考](https://www.366service.com/jp/qa/5a3910187e2b883ced28a4f1c9434e29)
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10
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+
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11
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***
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12
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13
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**追記**
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14
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15
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```Python
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16
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17
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class MyModel(models.Model):
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18
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19
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duration = models.DurationField()
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20
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21
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def save(self, *args, **kwargs):
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22
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23
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m_s = str(self.duration.microseconds).replace("0", "")
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24
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25
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hr = self.duration.seconds / 3600
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26
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27
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if hr != 0 and len(m_s) != 2:
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28
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29
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raise ValueError("有効な値を入力してください。")
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30
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31
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super(MyModel, self).save(*args, **kwargs)
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32
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+
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33
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```とかで、できそうです。
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