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What is causing this ActiveRecord::ReadOnlyRecord error?
This follows this prior question, which was answered. I actually discovered I could remove a join from that query, so now the working query is
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Getting URL hash location, and using it in jQuery
...te that this property already contains the # symbol at the beginning.
Actually you don't need the :first pseudo-selector since you are using the ID selector, is assumed that IDs are unique within the DOM.
In case you want to get the hash from an URL string, you can use the String.substring method:...
How to check if a variable exists in a FreeMarker template?
...ich values are supplied when the template is processed. I want to conditionally include part of the template if the userName variable is supplied, something like:
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Create Django model or update if exists
... update the user object.
Sample use is as follows:
# In both cases, the call will get a person object with matching
# identifier or create one if none exists; if a person is created,
# it will be created with name equal to the value in `name`.
# In this case, if the Person already exists, its exi...
Should I use the Reply-To header when sending emails as a service to others?
Suppose we have an application that acts as a middleman, allowing Company A to send reports to their customers.
3 Answers
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Overloaded method selection based on the parameter's real type
...n Java, dynamic method dispatch happens only for the object the method is called on, not for the parameter types of overloaded methods.
Citing the Java Language Specification:
When a method is invoked (§15.12), the
number of actual arguments (and any
explicit type arguments) and the
comp...
gunicorn autoreload on source change
Finally I migrated my development env from runserver to gunicorn/nginx.
4 Answers
4
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Difference between signed / unsigned char [duplicate]
...gard) as int, short and other integer types. char just happens to be the smallest integer type. So, just like any other integer type, it can be signed or unsigned.
It is true that (as the name suggests) char is mostly intended to be used to represent characters. But characters in C are represented ...
What is the difference between object keys with quotes and without quotes?
...xchange format does require double quotes around identifiers (and does not allow single quotes).
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Is there a bash command which counts files?
...even when the output is not the terminal. And these flags are supported by all the platforms and shells I've tested on. Updating the answer, thanks to you and camh for the input!
– Daniel
Jan 25 '17 at 5:38
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