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Q&A Error undefined method `has_tags' or `id' for nil:NilClass during rails db:seed

0 answers · posted 3y ago by Trilarion‭ · edited 3y ago by Trilarion‭

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#3: Post edited by

Trilarion‭ · 2022-01-15T16:06:50Z (almost 3 years ago)
found an issue that might be related

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When running `rails db:seed` I get some errors without any further explanation.
```
CloseReason: Created 0, skipped 5
User: Created 0, skipped 1
PostFlagType: Created 0, skipped 4
PostType: Created 0, skipped 5
ReactionType: Created 0, skipped 3
SiteSetting: Created 0, skipped 57
Got error undefined method `has_tags' for nil:NilClass. Continuing...
Ability: Created 0, skipped 7
PostHistoryType: Created 0, skipped 12
Got error undefined method `id' for nil:NilClass. Continuing...
WarningTemplate: Created 0, skipped 3
TagSet: Created 0, skipped 2
License: Created 0, skipped 5
```
Are they critical? Should I do something?
----
I tried to setup QPixel again and while I could avoid [another error](https://collab.codidact.org/posts/285517), this one persists. I gathered more information by adding to the rescue clause of `db/seeds.rb`
```
puts "#{e.class}: #{e.message}"
puts e.backtrace.join("\n")
```
and got
```
Post
Got error undefined method `has_tags' for nil:NilClass. Continuing...
NoMethodError: undefined method `has_tags' for nil:NilClass
/home/abanta/qpixel/app/models/post.rb:52:in `block in <class:Post>'
...
/home/abanta/qpixel/db/seeds.rb:56:in `block (2 levels) in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:21:in `each'
/home/abanta/qpixel/db/seeds.rb:21:in `block in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:11:in `each'
/home/abanta/qpixel/db/seeds.rb:11:in `<top (required)>'
Category
Got error undefined method `id' for nil:NilClass. Continuing...
NoMethodError: undefined method `id' for nil:NilClass
(erb):4:in `block in <top (required)>'
/usr/lib/ruby/2.7.0/erb.rb:905:in `eval'
/usr/lib/ruby/2.7.0/erb.rb:905:in `result'
/home/abanta/qpixel/db/seeds.rb:16:in `block in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:11:in `each'
/home/abanta/qpixel/db/seeds.rb:11:in `<top (required)>'
```
In the database `SELECT * FROM post_types` delivers
```
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
| id | name | description | has_answers | has_votes | has_tags | has_parent | has_category | has_license | is_public_editable | is_closeable | is_top_level | is_freely_editable | icon_name | answer_type_id | has_reactions | has_only_specific_reactions |
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
| 1 | Answer | NULL | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | NULL | NULL | 1 | 0 |
| 2 | PolicyDoc | NULL | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NULL | NULL | 0 | 0 |
| 3 | HelpDoc | NULL | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NULL | NULL | 0 | 0 |
| 4 | Article | NULL | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | NULL | NULL | 0 | 0 |
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
```
~~Maybe that helps finding the cause and judging the severity of the issue.~~

When running `rails db:seed` I get some errors without any further explanation.
```
CloseReason: Created 0, skipped 5
User: Created 0, skipped 1
PostFlagType: Created 0, skipped 4
PostType: Created 0, skipped 5
ReactionType: Created 0, skipped 3
SiteSetting: Created 0, skipped 57
Got error undefined method `has_tags' for nil:NilClass. Continuing...
Ability: Created 0, skipped 7
PostHistoryType: Created 0, skipped 12
Got error undefined method `id' for nil:NilClass. Continuing...
WarningTemplate: Created 0, skipped 3
TagSet: Created 0, skipped 2
License: Created 0, skipped 5
```
Are they critical? Should I do something?
----
I tried to setup QPixel again and while I could avoid [another error](https://collab.codidact.org/posts/285517), this one persists. I gathered more information by adding to the rescue clause of `db/seeds.rb`
```
puts "#{e.class}: #{e.message}"
puts e.backtrace.join("\n")
```
and got
```
Post
Got error undefined method `has_tags' for nil:NilClass. Continuing...
NoMethodError: undefined method `has_tags' for nil:NilClass
/home/abanta/qpixel/app/models/post.rb:52:in `block in <class:Post>'
...
/home/abanta/qpixel/db/seeds.rb:56:in `block (2 levels) in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:21:in `each'
/home/abanta/qpixel/db/seeds.rb:21:in `block in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:11:in `each'
/home/abanta/qpixel/db/seeds.rb:11:in `<top (required)>'
Category
Got error undefined method `id' for nil:NilClass. Continuing...
NoMethodError: undefined method `id' for nil:NilClass
(erb):4:in `block in <top (required)>'
/usr/lib/ruby/2.7.0/erb.rb:905:in `eval'
/usr/lib/ruby/2.7.0/erb.rb:905:in `result'
/home/abanta/qpixel/db/seeds.rb:16:in `block in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:11:in `each'
/home/abanta/qpixel/db/seeds.rb:11:in `<top (required)>'
```
In the database `SELECT * FROM post_types` delivers
```
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
| id | name | description | has_answers | has_votes | has_tags | has_parent | has_category | has_license | is_public_editable | is_closeable | is_top_level | is_freely_editable | icon_name | answer_type_id | has_reactions | has_only_specific_reactions |
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
| 1 | Answer | NULL | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | NULL | NULL | 1 | 0 |
| 2 | PolicyDoc | NULL | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NULL | NULL | 0 | 0 |
| 3 | HelpDoc | NULL | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NULL | NULL | 0 | 0 |
| 4 | Article | NULL | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | NULL | NULL | 0 | 0 |
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
```
Maybe that helps finding the cause and judging the severity of the issue.
I found a [issue on Github](https://github.com/codidact/qpixel/issues/638) from August 21 that is related to seeding, but contains only little information at the moment.

#2: Post edited by

Trilarion‭ · 2022-01-12T22:00:10Z (almost 3 years ago)
added new information

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When running `rails db:seed` I get some errors without any further explanation.
```
CloseReason: Created 0, skipped 5
User: Created 0, skipped 1
PostFlagType: Created 0, skipped 4
PostType: Created 0, skipped 5
ReactionType: Created 0, skipped 3
SiteSetting: Created 0, skipped 57
Got error undefined method `has_tags' for nil:NilClass. Continuing...
Ability: Created 0, skipped 7
PostHistoryType: Created 0, skipped 12
Got error undefined method `id' for nil:NilClass. Continuing...
WarningTemplate: Created 0, skipped 3
TagSet: Created 0, skipped 2
License: Created 0, skipped 5
```
~~Are they critical? Should I do something?~~

When running `rails db:seed` I get some errors without any further explanation.
```
CloseReason: Created 0, skipped 5
User: Created 0, skipped 1
PostFlagType: Created 0, skipped 4
PostType: Created 0, skipped 5
ReactionType: Created 0, skipped 3
SiteSetting: Created 0, skipped 57
Got error undefined method `has_tags' for nil:NilClass. Continuing...
Ability: Created 0, skipped 7
PostHistoryType: Created 0, skipped 12
Got error undefined method `id' for nil:NilClass. Continuing...
WarningTemplate: Created 0, skipped 3
TagSet: Created 0, skipped 2
License: Created 0, skipped 5
```
Are they critical? Should I do something?
----
I tried to setup QPixel again and while I could avoid [another error](https://collab.codidact.org/posts/285517), this one persists. I gathered more information by adding to the rescue clause of `db/seeds.rb`
```
puts "#{e.class}: #{e.message}"
puts e.backtrace.join("\n")
```
and got
```
Post
Got error undefined method `has_tags' for nil:NilClass. Continuing...
NoMethodError: undefined method `has_tags' for nil:NilClass
/home/abanta/qpixel/app/models/post.rb:52:in `block in <class:Post>'
...
/home/abanta/qpixel/db/seeds.rb:56:in `block (2 levels) in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:21:in `each'
/home/abanta/qpixel/db/seeds.rb:21:in `block in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:11:in `each'
/home/abanta/qpixel/db/seeds.rb:11:in `<top (required)>'
Category
Got error undefined method `id' for nil:NilClass. Continuing...
NoMethodError: undefined method `id' for nil:NilClass
(erb):4:in `block in <top (required)>'
/usr/lib/ruby/2.7.0/erb.rb:905:in `eval'
/usr/lib/ruby/2.7.0/erb.rb:905:in `result'
/home/abanta/qpixel/db/seeds.rb:16:in `block in <top (required)>'
/home/abanta/qpixel/db/seeds.rb:11:in `each'
/home/abanta/qpixel/db/seeds.rb:11:in `<top (required)>'
```
In the database `SELECT * FROM post_types` delivers
```
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
| id | name | description | has_answers | has_votes | has_tags | has_parent | has_category | has_license | is_public_editable | is_closeable | is_top_level | is_freely_editable | icon_name | answer_type_id | has_reactions | has_only_specific_reactions |
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
| 1 | Answer | NULL | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | NULL | NULL | 1 | 0 |
| 2 | PolicyDoc | NULL | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NULL | NULL | 0 | 0 |
| 3 | HelpDoc | NULL | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | NULL | NULL | 0 | 0 |
| 4 | Article | NULL | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | NULL | NULL | 0 | 0 |
+----+-----------+-------------+-------------+-----------+----------+------------+--------------+-------------+--------------------+--------------+--------------+--------------------+-----------+----------------+---------------+-----------------------------+
```
Maybe that helps finding the cause and judging the severity of the issue.

#1: Initial revision by

Trilarion‭ · 2022-01-09T19:30:17Z (almost 3 years ago)

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Error undefined method `has_tags' or `id' for nil:NilClass during rails db:seed

When running `rails db:seed` I get some errors without any further explanation.

```
CloseReason: Created 0, skipped 5
User: Created 0, skipped 1
PostFlagType: Created 0, skipped 4
PostType: Created 0, skipped 5
ReactionType: Created 0, skipped 3
SiteSetting: Created 0, skipped 57
Got error undefined method `has_tags' for nil:NilClass. Continuing...
Ability: Created 0, skipped 7
PostHistoryType: Created 0, skipped 12
Got error undefined method `id' for nil:NilClass. Continuing...
WarningTemplate: Created 0, skipped 3
TagSet: Created 0, skipped 2
License: Created 0, skipped 5
```

Are they critical? Should I do something?

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