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Django migration strategy for renaming a model and relationship fields
...pdate the names where it's imported e.g. admin.py and even older migration files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So try manage.py makemigrations first and then check the migration file.
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Understanding Spring @Autowired usage
...red annotation spares you the need to do the wiring by yourself in the XML file (or any other way) and just finds for you what needs to be injected where, and does that for you.
Full explanation
The @Autowired annotation allows you to skip configurations elsewhere of what to inject and just does i...
Gradle, “sourceCompatibility” vs “targetCompatibility”?
...s is how I sort this issue out, right in the beginning of the build.gradle file.
– Xerus
Nov 6 '17 at 10:28
2
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'any' vs 'Object'
...efined as any.
So in short
any can be anything (you can call any method etc on it without compilation errors)
Object exposes the functions and properties defined in the Object class.
share
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imp...
How to export table as CSV with headings on Postgresql?
I'm trying to export a PostgreSQL table with headings to a CSV file via command line, however I get it to export to CSV file, but without headings.
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Starting Eclipse w/ Specific Workspace
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Creating a shortcut file with target :
Create a shortcut of your eclipse.
Open the properties of the shortcut file and set the target as follows,
E\STS.exe -data "WORKSPACE_LOCATION"
For launching from .bat file :
cd ECLIPSE_LOCATION
sta...
Eclipse compilation error: The hierarchy of the type 'Class name' is inconsistent
... error: " The hierarchy of the type 'Class name' is inconsistent " in some files.
What causes these errors and how do I fix them?
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Python AttributeError: 'module' object has no attribute 'Serial' [duplicate]
...le who make the same mistake as I did.
In most cases: rename your project file 'serial.py' and delete serial.pyc if exists, then you can do simple 'import serial' without attribute error.
Problem occurs when you import 'something' when your python file name is 'something.py'.
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Significant new inventions in computing since 1980
... to bring consumer gaming
into the home.
Media compression (MP3s and video
files). And a whole bunch of things -
like TiVO and iPods - that we don't
really think of as computers any more
because they're so ubiquitous and so
user-friendly. But they are.
The common thread here, I think, is stuff th...
What is the use case of noop [:] in bash?
...y, you are just making the shell do extra work in expanding * to a list of files in the current directory; it won't actually affect how the script works.
– chepner
Nov 5 '14 at 14:48
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