Django

【Django】通过 ORM 访问 MySQL，插入 Emoji 报错

Posted by 西维蜀黍 on 2019-10-31, Last Modified on 2021-10-02

Problem

>>> paras = {u'name': u'\U0001f600'}
>>> from core import models
>>> models.Channel.objects.create(**paras)
Traceback (most recent call last):
    ...
  File "/Library/Python/2.7/site-packages/pymysql/err.py", line 109, in raise_mysql_exception
    raise errorclass(errno, errval)
InternalError: (1366, u"Incorrect string value: '\\xF0\\x9F\\x98\\x80' for column 'name' at row 1")

通过 ORM插入一条数据，在其中的一个类型为varchar的字段中插入一个 Emoji 表情，我插的是😀（对应的字符串为u'\U0001f600'），插入后：提示以下错误：

{InternalError}(1366, u"Incorrect string value: '\\xF0\\x9F\\x98\\x80' for column 'name' at row 1")

Solition

查看字符集（Charater Set）

SHOW VARIABLES WHERE Variable_name LIKE 'character\_set\_%' OR Variable_name LIKE 'collation%';

修改字符集

# For each database:
ALTER DATABASE {your_db_name} CHARACTER SET = utf8mb4 COLLATE utf8mb4_unicode_ci;
# For each table:
ALTER TABLE {your_tb_name} CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
# For each column:
ALTER TABLE {your_tb_name} CHANGE {your_column_name} name VARCHAR(128) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL;

重启 MySQL

$ mysql.server restart

查看字符集（Charater Set）

SHOW VARIABLES WHERE Variable_name LIKE 'character\_set\_%' OR Variable_name LIKE 'collation%';

Reference

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