ValueError:以10为基数的int()的文本无效:'';[Django]
我正在开发一个Django应用程序,它从API获取JSON数据并将其存储在PostgreSQL数据库中。 但在迁移应用程序时,我遇到以下错误:ValueError:以10为基数的int()的文本无效:'';[Django],django,python-3.x,api,django-models,valueerror,Django,Python 3.x,Api,Django Models,Valueerror,我正在开发一个Django应用程序,它从API获取JSON数据并将其存储在PostgreSQL数据库中。 但在迁移应用程序时,我遇到以下错误: ValueError: invalid literal for int() with base 10: '' 我应该在代码中更改什么来解决此错误? 以下是回溯: Traceback (most recent call last): File "manage.py", line 22, in <module> execute_fr
ValueError: invalid literal for int() with base 10: ''
我应该在代码中更改什么来解决此错误?
以下是回溯:
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
utility.execute()
File "/python/lib/python3.6/site-packages/django/core/management/__init__.py", line 355, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/python/lib/python3.6/site-packages/django/core/management/base.py", line 283, in run_from_argv
self.execute(*args, **cmd_options)
File "/python/lib/python3.6/site-packages/django/core/management/base.py", line 330, in execute
output = self.handle(*args, **options)
File "/python/lib/python3.6/site-packages/django/core/management/commands/migrate.py", line 204, in handle
fake_initial=fake_initial,
File "/python/lib/python3.6/site-packages/django/db/migrations/executor.py", line 115, in migrate
state = self._migrate_all_forwards(state, plan, full_plan, fake=fake, fake_initial=fake_initial)
File "/python/lib/python3.6/site-packages/django/db/migrations/executor.py", line 145, in _migrate_all_forwards
state = self.apply_migration(state, migration, fake=fake, fake_initial=fake_initial)
File "/python/lib/python3.6/site-packages/django/db/migrations/executor.py", line 244, in apply_migration
state = migration.apply(state, schema_editor)
File "/python/lib/python3.6/site-packages/django/db/migrations/migration.py", line 129, in apply
operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
File "/python/lib/python3.6/site-packages/django/db/migrations/operations/fields.py", line 87, in database_forwards
field,
File "/python/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 415, in add_field
definition, params = self.column_sql(model, field, include_default=True)
File "/python/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 155, in column_sql
default_value = self.effective_default(field)
File "/python/lib/python3.6/site-packages/django/db/backends/base/schema.py", line 229, in effective_default
default = field.get_db_prep_save(default, self.connection)
File "/python/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 770, in get_db_prep_save
prepared=False)
File "/python/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 762, in get_db_prep_value
value = self.get_prep_value(value)
File "/python/lib/python3.6/site-packages/django/db/models/fields/__init__.py", line 1853, in get_prep_value
return int(value)
ValueError: invalid literal for int() with base 10: ''
下面是fetch.py文件的代码,该文件存储在/management/commands/fetch.py下:
import requests
from django.core.management.base import BaseCommand
from worldBank.worldBankApp.models import Projects
class Command(BaseCommand):
def handle(self, **options):
response = requests.get("https://search.worldbank.org/api/v2/projects?format=json&countryshortname_exact=India&source=IBRD&kw=N&rows=7")
data = response.json()
projects = data['projects']
#print(data)
for project in projects:
print(projects[project])
print("\n\n")
data = projects[project]
Projects.objects.create(
project_id = data['id'],
project_name = data['project_name'],
status = data['status'],
country = data['countryshortname'],
locations = data['locations'],
mjtheme = data['mjtheme'],
project_docs = data['projectdocs'],
source = data['source'],
mjtheme_namecode = data['mjtheme_namecode'],
docty = data['docty'],
countryname = data['countryname'],
countrycode = data['countrycode'],
themecode = data['themecode'],
theme_namecode = data['theme_namecode'],
project_url = data['url'],
totalcommamt = data['totalcommamt'],
mjthemecode = data['mjthemecode'],
sector1 = data['sector1'],
theme1 = data['theme1'],
theme2 = data['theme2'],
theme3 = data['theme3'],
projectinfo = data['projectinfo'],
country_namecode = ['country_namecode'],
p2a_updated_date = data['p2a_updated_date'],
p2a_flag = data['p2a_flag'],
project_abstract = data['project_abstract']
)
以下任一
整型字段出现错误
themecode=models.IntegerField()
theme_namecode=models.IntegerField()
totalcommamt=models.IntegerField()
mjthemecode=models.IntegerField()
p2a_updated_date=models.IntegerField()
原因:您应该分配整数值(例如4或“4”),而不是它的值。请检查以上字段的值
======编辑
响应整数字段的值:
==编辑:将以下代码放在data=projects[project]
for k, v in data.items():
try:
int(v)
except ValueError:
print k, v
break
以下任一整型字段出现错误
themecode=models.IntegerField()
theme_namecode=models.IntegerField()
totalcommamt=models.IntegerField()
mjthemecode=models.IntegerField()
p2a_updated_date=models.IntegerField()
原因:您应该分配整数值(例如4或“4”),而不是它的值。请检查以上字段的值
======编辑
响应整数字段的值:
==编辑:将以下代码放在data=projects[project]
for k, v in data.items():
try:
int(v)
except ValueError:
print k, v
break
Navyad在很大程度上是正确的,您正在尝试将字符串分配给整数字段(themecode
就是一个很好的例子)
通过JSON,我看到了类似于“themecode”:“79,77,66”
。这不能简单地插入到整数字段中。您需要将这些更改为模型。CharField
或以某种方式预处理数据(例如提取第一个数字)。Navyad基本正确,您正在尝试将字符串分配给整数字段(themecode
是一个很好的示例)
通过JSON,我看到了类似于“themecode”:“79,77,66”
。这不能简单地插入到整数字段中。您需要将这些更改为models.CharField
或以某种方式预处理数据(例如提取第一个数字)。我是否应该包括IntegerField(max_length=100)?但这并不能解决问题否。问题是当您分配像'p2a\u updated\u date=data['p2a\u updated\u date']这样的值时。这里的数据['p2a\u updated\u date']应该是整数。尝试分配IntegerField('100'),但同样的问题确定让我试试'p2a\u updated\u date=int(data['p2a\u updated\u date']),那么哪个字段适合这些值@navyad请帮助我是否应该包括IntegerField(max_length=100)??但没有解决问题。问题是当您分配像'p2a\u updated\u date=data['p2a\u updated\u date']这样的值时。这里的数据['p2a\u updated\u date']应该是整数。尝试分配IntegerField('100'),但同样的问题确定让我试试'p2a\u updated\u date=int(data['p2a\u updated\u date']),那么哪个字段适合这些值@navyad please Help我将所有IntegerField()更改为CharField(max_length=100),但仍然存在相同的错误:ValueError:以10为基数的int()的文本无效:“”甚至尝试将所有IntegerField()更改为CharField(),但得到相同的错误我将所有IntegerField()更改为CharField(max_length=100)但仍然存在相同的错误:ValueError:以10为基数的int()的文本无效:“”甚至尝试将所有IntegerField()更改为CharField(),但得到相同的错误