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Use email address as primary key?
... key. Email address may be a bit much, but a CASCADE UPDATE for a PK of 2-character country code isn't a big deal.
– Matthew Wood
Sep 27 '10 at 20:58
5
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How to serialize SqlAlchemy result to JSON?
...oded before, it will encode it as 'None'.
A recursive, possibly-circular, selective implementation
Another alternative, probably better, is to be able to specify the fields you want to expand:
def new_alchemy_encoder(revisit_self = False, fields_to_expand = []):
_visited_objs = []
class ...
Get the string representation of a DOM node
...(el) == "<p>Test</p>"
You'll find my jQuery plugin here: Get selected element's outer HTML
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How to unstash only certain files?
... relative to stash@{0})).
yucer suggests in the comments:
If you want to select manually which changes you want to apply from that file:
git difftool stash@{0}..HEAD -- <filename>
Vivek adds in the comments:
Looks like "git checkout stash@{0} -- <filename>" restores the version of t...
Automatically expanding an R factor into a collection of 1/0 indicator variables for every factor le
... 0 1
# 3 bar 3 1 0
# 4 bar 4 1 0
# At this point, you can select out the columns that you want.
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live output from subprocess command
...ptimization: If we are only using one pipe, or no pipe at
# all, using select() or threads is unnecessary.
if [self.stdin, self.stdout, self.stderr].count(None) >= 2:
But, alas, here we've made at least two, and maybe three, different pipes, so the count(None) returns either 1 or 0. We...
With arrays, why is it the case that a[5] == 5[a]?
...D"[2] == *("ABCD" + 2) = *("CD") = 'C'. Dereferencing a string gives you a char, not a substring
– MSalters
Sep 21 '09 at 10:34
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What is the meaning of symbol $ in jQuery?
... $ already. Just use jQuery.noConflict(). $ is pretty commonly used as a selector function in JS.
In jQuery the $ function does much more than select things though.
You can pass it a selector to get a
collection of matching elements from the DOM.
You can pass
it a function to run when the
d...
Create a matrix of scatterplots (pairs() equivalent) in ggplot2
... na.rm = na.rm, convert = convert, factor_key = factor_key),
select(., !!!vars))
} %>% gather(., key = !!ykey, value = !!yvalue, !!!vars,
na.rm = na.rm, convert = convert, factor_key = factor_key)
}
iris %>%
gatherpairs(Sepal.Length, Sepal.Width, Petal.Lengt...
Is it a good idea to index datetime field in mysql?
...ne table with 4 million records. Most of my queries use datetime clause to select data. Is it a good idea to index datetime fields in mysql database?
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