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DatabaseError: current transaction is aborted, commands ignored until end of transaction block?
... the transaction. (You might think of it as a safety feature, to keep you from corrupting your data.)
To fix this, you'll want to figure out where in the code that bad query is being executed. It might be helpful to use the log_statement and log_min_error_statement options in your postgresql serv...
Why can I access TypeScript private members when I shouldn't be able to?
...nside the constructor, a local variable in the constructor isn't reachable from the methods. It might be possible to make a local variable inside the function wrapper for the class, but I haven't yet found a way to do that. However, that would still be a local variable, and not a private member.
...
Getting the name of a variable as a string
...riables
https://github.com/pwwang/python-varname
In your case, you can do:
from varname import Wrapper
foo = Wrapper(dict())
# foo.name == 'foo'
# foo.value == {}
foo.value['bar'] = 2
For list comprehension part, you can do:
n_jobs = Wrapper(<original_value>)
users = Wrapper(<original_v...
Reflection - get attribute name and value on property
...e Author Attribute type. If they do, you can get the name of the property from the property info and the attribute values from the attribute.
Something along these lines to scan a type for properties that have a specific attribute type and to return data in a dictionary (note that this can be made...
What is Ember RunLoop and how does it work?
...pagated, and so on. Obviously, the more changes that need to be propagated from a single event, the longer the RunLoop will take to finish. Here's a (pretty unfair) example of how the RunLoop can get bogged down with propagating changes compared to another framework (Backbone) that doesn't have a ru...
How do arrays in C# partially implement IList?
...<T> - but array variance makes this trickier. Contrary to the answer from Hans, the array types (single-dimensional, zero-based anyway) do implement the generic collections directly, because the type of any specific array isn't System.Array - that's just the base type of the array. If you ask ...
List all base classes in a hierarchy of given class?
...h, nice. And for even nicer output, use pprint! python -c 'import inspect; from pprint import pprint as pp; pp(inspect.getclasstree(inspect.getmro(IOError)))'
– penguin359
Nov 15 '16 at 4:58
...
Use basic authentication with jQuery and Ajax
...h a dialog to enter username/pwd again. How can I prevent this 2nd dialog from appearing if the credentials fail?
– David
Oct 2 '13 at 0:47
2
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Use Font Awesome icon as CSS content
...
If you have access to SCSS files from font-awesome, you can use this simple solution:
.a:after {
// Import mixin from font-awesome/scss/mixins.scss
@include fa-icon();
// Use icon variable from font-awesome/scss/variables.scss
content: $fa-...
What is string_view?
...tions and exceptions you can save).
The original C strings were suffering from the problem that the null terminator was part of the string APIs, and so you couldn't easily create substrings without mutating the underlying string (a la strtok). In C++, this is easily solved by storing the length sep...