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Django-DB-Migrations: cannot ALTER TABLE because it has pending trigger events
...and PostgreSQL), RunPython operations do not have any transactions automatically added besides the transactions created for each migration. Thus, on PostgreSQL, for example, you should avoid combining schema changes and RunPython operations in the same migration or you may hit errors like Operationa...
How can I change the color of pagination dots of UIPageControl?
... on UIPageControl.
ORIGINAL ANSWER:
I ran into this problem today and decided to write my own simple replacement class.
It's a sublassed UIView that uses Core Graphics to render the dots in the colors you specify.
You use the exposed properties to customize and control it.
If you want to you c...
Can I split an already split hunk with git?
...ng I could just delete the - characters, and Git complained that my patch didn't apply.
– Ryan Lundy
Jul 29 '11 at 20:18
3
...
spring scoped proxy bean
...g 'userPreferences' bean definition as it stands is incomplete):
<bean id="userPreferences" class="com.foo.UserPreferences" scope="session"/>
<bean id="userManager" class="com.foo.UserManager">
<property name="userPreferences" ref="userPreferences"/>
</bean>
From the ...
CSS 3 slide-in from left transition
Is there a cross browser solution to produce a slide-in transition with CSS only, no javascript? Below is an example of the html content:
...
Convert data.frame column format from character to factor
...sn't work if length(col_names)==1. In that case, df[,col_names] is automatically demoted to a vector instead of a list of length 1, and then lapply tries to operate over each entry rather than the column as a whole. This can be prevented by using df[,col_names,drop=FALSE].
– P ...
Java Persistence / JPA: @Column vs @Basic
...
that 'non-lazy', calls EAGER. LOL
– solvator
Feb 21 '14 at 5:16
7
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How to un-escape a backslash-escaped string?
...
Basically for Python3 you want print(b"Hello,\nworld!".decode('unicode_escape'))
– ChristopheD
Apr 7 '15 at 8:35
...
No mapping found for field in order to sort on in ElasticSearch
... ignore_unmapped boolean parameter, which was not enough information to decide on the sort values to emit, and didn’t work for cross-index search. It is still supported but users are encouraged to migrate to the new unmapped_type instead.
By default, the search request will fail if there is no ma...
Golang: How to pad a number with zeros when printing?
... 1 digit)
It is useful to note that the width can also be set programmatically by using * instead of a number and passing the width as an int parameter:
myWidth := 6
fmt.Printf("%0*d", myWidth, 12) // Prints '000012' as before
This might be useful for instance if the largest value you want to p...