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ManyRelatedManager object is not iterable
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Try
matches = [val for val in Store.attribute_answers.all() if val in WishList.attribute_answers.all()]
Notice the parenthesis at the end of WishList.attribute_answers.all(). Adding the parenthesis invokes the all function to return an iterable.
If you include the parenthesis you'...
Join strings with a delimiter only if strings are not null or empty
This feels like it should be simple, so sorry if I'm missing something here, but I'm trying to find a simple way to concatenate only non-null or non-empty strings.
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Should I index a bit field in SQL Server?
... integer column, SQL's index contains a set of rows for each index value. If you have a range of 1 to 10, then you would have 10 index pointers. Depending on how many rows there are this can be paged differently. If your query looks for the index matching "1" and then where Name contains "Fred" (...
How to have an automatic timestamp in SQLite?
...rged your answer and javed's. With DEFAULT (STRFTIME('%Y-%m-%d %H:%M:%f', 'NOW', 'localtime')) one actually gets meaningful microsecond values.
– Dietmar
Jun 22 '17 at 18:24
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Difference between String#equals and String#contentEquals methods
What is the difference between the String#equals method and the String#contentEquals method?
9 Answers
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MySQL CONCAT returns NULL if any field contain NULL
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You can use if select CONCAT(if(affiliate_name is null ,'',affiliate_name),'- ',if(model is null ,'',affiliate_name)) as model from devices
– Dinesh Rabara
Sep 24 '15 at 13:41
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Git status ignore line endings / identical files / windows & linux environment / dropbox / mled
...repo is in Dropbox (I don't need a public repository) that's probably the difference
– Thorsten Niehues
Dec 13 '13 at 10:46
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how to schedule a job for sql query to run daily?
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if SQL Server Agent node is not expandable with a label "Agent XPs disabled", run this code sp_configure 'show advanced options', 1; GO RECONFIGURE; GO sp_configure 'Agent XPs', 1; GO ...
How to make a in Bootstrap look like a normal link in nav-tabs?
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Shows differently than links.
– Ciro Santilli 郝海东冠状病六四事件法轮功
Oct 5 '14 at 9:35
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Ukkonen's suffix tree algorithm in plain English
...e an initial tree, which looks like this:
And what it means is this:
Now we progress to position 2 (right after b). Our goal at each step
is to insert all suffixes up to the current position. We do this
by
expanding the existing a-edge to ab
inserting one new edge for b
In our representati...