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Jdbctemplate query for string: EmptyResultDataAccessException: Incorrect result size: expected 1, ac
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In JdbcTemplate , queryForInt, queryForLong, queryForObject all such methods expects that executed query will return one and only one row. If you get no rows or more than one row that will result in IncorrectResultSizeDataAccessException . Now the cor...
Suppress properties with null value on ASP.NET Web API
...s.AddMvc().Configure<MvcOptions>(options =>
{
int position = options.OutputFormatters.FindIndex(f => f.Instance is JsonOutputFormatter);
var settings = new JsonSerializerSettings()
{
NullValueHandling = NullValueHandling.Ignor...
Python matplotlib multiple bars
...p by date (a "fake" date on the x-axis, basically just grouping the data points).
import numpy as np
import matplotlib.pyplot as plt
N = 3
ind = np.arange(N) # the x locations for the groups
width = 0.27 # the width of the bars
fig = plt.figure()
ax = fig.add_subplot(111)
yvals = [4, 9, 2...
Using module 'subprocess' with timeout
...nd subprocess timeout support exists in the subprocess32 backport that I maintain for use on Python 2. pypi.python.org/pypi/subprocess32
– gps
Dec 9 '12 at 4:07
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Avoiding instanceof in Java
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You might be interested in this entry from Steve Yegge's Amazon blog: "when polymorphism fails". Essentially he's addressing cases like this, when polymorphism causes more trouble than it solves.
The issue is that to use polymorphism yo...
How do I set a column value to NULL in SQL Server Management Studio?
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If you are using the table interface you can type in NULL (all caps)
otherwise you can run an update statement where you could:
Update table set ColumnName = NULL where [Filter for record here]
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How to redirect from OnActionExecuting in Base Controller?
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try { int CompanyId = UserContext.Company.CompanyId; } catch { if (filterContext.Controller.GetType() != typeof(AccountController)) { filterCon...
How to make a variadic macro (variable number of arguments)
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C99 way, also supported by VC++ compiler.
#define FOO(fmt, ...) printf(fmt, ##__VA_ARGS__)
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Angular ng-repeat Error “Duplicates in a repeater are not allowed.”
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Yikes, what pointlessly nasty design on Angular's part. It would be very, very easy to miss this issue during development and testing because your array never contained duplicates, only to have your app explode in production when it gets e...
How do I wait for an asynchronously dispatched block to finish?
... STAssert…
dispatch_semaphore_signal(sema);
}];
if (![NSThread isMainThread]) {
dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER);
} else {
while (dispatch_semaphore_wait(sema, DISPATCH_TIME_NOW)) {
[[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDa...