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Django set default form values
...ch is explained here
You have two options either populate the value when calling form constructor:
form = JournalForm(initial={'tank': 123})
or set the value in the form definition:
tank = forms.IntegerField(widget=forms.HiddenInput(), initial=123)
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Pretty-Print JSON in Java
... Well I included code to parse a string into a JsonElement, usually you already have that from previous work you do with the JSON data. But I wanted to include it here to make the usage clearer.
– Ray Hulha
Feb 20 '14 at 15:01
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How to remove constraints from my MySQL table?
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Postgres, MSSQL, and Oracle all have alter table .. drop constraint. MySQL is the odd one out, it seems.
– Jared Beck
Mar 23 '15 at 23:48
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Installation Issue with matplotlib Python [duplicate]
I have issue after installing the matplotlib package unable to import matplotlib.pyplot as plt . Any suggestion will be greatly appreciate.
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Get the length of a String
...Before Swift 2.0, count was a global function. As of Swift 2.0, it can be called as a member function.
test1.characters.count
It will return the actual number of Unicode characters in a String, so it's the most correct alternative in the sense that, if you'd print the string and count characters ...
What is the Python equivalent of static variables inside a function?
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there is only one instance of foo - this one function. all invocations access the same variable.
– Claudiu
Nov 10 '08 at 23:49
124
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Add a column with a default value to an existing table in SQL Server
...ed for Existing Records.
If your Column is NOT NULL, then it will automatically use the Default Value
for all Existing Records, whether you specify WITH VALUES or not.
How Inserts work with a Default-Constraint:
If you insert a Record into SomeTable and do not Specify SomeCol's value, then it...
What are “signed” cookies in connect/expressjs?
I am trying to figure out what "signed cookies" actually are.
There isn't much on the net, and if I try this:
4 Answers
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Foreign Key naming scheme
...o qualify this. It's an unusual situation to be in, and not one you'd typically design in from scratch, so I didn't include this in the response.
– Greg Beech
Oct 14 '08 at 0:41
4
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Remove a file from a Git repository without deleting it from the local filesystem
...ged content has to match either the tip of the branch or the file on disk, allowing the file to be removed from just the index.
So, for a single file:
git rm --cached mylogfile.log
and for a single directory:
git rm --cached -r mydirectory
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