Django: Difference between revisions
(Created page with "==Models== *change model type e.g. Char to Integer : psycopg2.errors.InvalidTextRepresentation: invalid input syntax for type integer: "" *alter field name in model ...try to...") |
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==Models== | ==Models== | ||
===Migratioins=== | |||
Example 1 | |||
*change model type e.g. Char to Integer : psycopg2.errors.InvalidTextRepresentation: invalid input syntax for type integer: "" | *change model type e.g. Char to Integer : psycopg2.errors.InvalidTextRepresentation: invalid input syntax for type integer: "" | ||
*alter field name in model ...try to delete field ...errors... | *alter field name in model ...try to delete field ...errors... | ||
*to fix, try to rename, remove ... delete col by hand using psql, delete migrations, recreate migration ... | *to fix, try to rename, remove ... delete col by hand using psql, delete migrations, recreate migration ... | ||
*problems: stuck in errors psycopg2.errors.DuplicateColumn: column "ccc" of relation "rrr" already exists | *problems: stuck in errors psycopg2.errors.DuplicateColumn: column "ccc" of relation "rrr" already exists | ||
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Example 2 | |||
*change of field to unique can result in "DETAIL: Key (id....)=() is duplicated." | |||
Revision as of 2022-04-28T20:12:43
Models
Migratioins
Example 1
- change model type e.g. Char to Integer : psycopg2.errors.InvalidTextRepresentation: invalid input syntax for type integer: ""
- alter field name in model ...try to delete field ...errors...
- to fix, try to rename, remove ... delete col by hand using psql, delete migrations, recreate migration ...
- problems: stuck in errors psycopg2.errors.DuplicateColumn: column "ccc" of relation "rrr" already exists
---
Example 2
- change of field to unique can result in "DETAIL: Key (id....)=() is duplicated."