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Default value for field in Django model
...e/ref/models/fields/#editable
b = models.CharField(max_length=7, default='0000000', editable=False)
Also, your id field is unnecessary. Django will add it automatically.
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C pointer to array/array of pointers disambiguation
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answered May 13 '09 at 18:37
Mehrdad AfshariMehrdad Afshari
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Comparing mongoose _id and strings
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cjohncjohn
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How to assign colors to categorical variables in ggplot2 that have stable mapping?
...al colour scale as follows:
#Some test data
dat <- data.frame(x=runif(10),y=runif(10),
grp = rep(LETTERS[1:5],each = 2),stringsAsFactors = TRUE)
#Create a custom color scale
library(RColorBrewer)
myColors <- brewer.pal(5,"Set1")
names(myColors) <- levels(dat$grp)
colScale <- sc...
How to redirect output with subprocess in Python?
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20
UPDATE: os.system is discouraged, albeit still available in Python 3.
Use os.system:
os.syst...
Javascript Array Concat not working. Why?
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edited Oct 9 '12 at 15:40
Rocket Hazmat
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Pass Nothing from Javascript to VBScript in IE9
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edited Feb 16 '12 at 16:50
answered Feb 16 '12 at 16:37
Pa...
How do you create an asynchronous method in C#?
...eyword:
private static async Task<DateTime> CountToAsync(int num = 10)
{
for (int i = 0; i < num; i++)
{
await Task.Delay(TimeSpan.FromSeconds(1));
}
return DateTime.Now;
}
If your async method is doing CPU work, you should use Task.Run:
private static async Task<DateTim...
How do I add more members to my ENUM-type column in MySQL?
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140
ALTER TABLE
`table_name`
MODIFY COLUMN
`column_name2` enum(
'existing_value1',
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ListBox vs. ListView - how to choose for data binding
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edited Apr 26 '12 at 13:01
answered Oct 22 '08 at 20:10
P...