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How can you hide database output in Rails console?
...logging in console)
To turn it back on
ActiveRecord::Base.logger.level = 0
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Use JAXB to create Object from XML String
...form.Source ?
– bvdb
Jul 13 '16 at 10:29
2
In my case work as: JAXBElement<MyObject> elemen...
Regex exactly n OR m times
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answered Dec 14 '12 at 8:10
Mark ByersMark Byers
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Can a pointer to base point to an array of derived objects?
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150
You cannot index like that. You have allocated an array of Rectangles and stored a pointer to th...
POST data in JSON format
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170
Not sure if you want jQuery.
var form;
form.onsubmit = function (e) {
// stop the regular fo...
Using IQueryable with Linq
...etProducts();
var productsOver25 = products.Where(p => p.Cost >= 25.00);
What happens here, is the database loads all of the products, and passes them across the wire to your program. Your program then filters the data. In essence, the database does a SELECT * FROM Products, and returns E...
Border around tr element doesn't show?
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260
Add this to the stylesheet:
table {
border-collapse: collapse;
}
JSFiddle.
The reason why ...
Float right and position absolute doesn't work together
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Use
position:absolute;
right: 0;
No need for float:right with absolute positioning
Also, make sure the parent element is set to position:relative;
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Increase number of axis ticks
...continuous. For example:
library(ggplot2)
dat <- data.frame(x = rnorm(100), y = rnorm(100))
ggplot(dat, aes(x,y)) +
geom_point()
Gives you this:
And overriding the scales can give you something like this:
ggplot(dat, aes(x,y)) +
geom_point() +
scale_x_continuous(breaks = round(seq(m...
Read and overwrite a file in Python
...ilename, 'r+')
text = f.read()
text = re.sub('foobar', 'bar', text)
f.seek(0)
f.write(text)
f.truncate()
f.close()
The functionality will likely also be cleaner and safer using open as a context manager, which will close the file handler, even if an error occurs!
with open(filename, 'r+') as f:
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