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What is the difference between `after_create` and `after_save` and when to use which?
...that, according to the docs, ActiveRecord's update_all does not invoke any callbacks, including after_*
– user2426679
Jan 10 at 19:34
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How can you do paging with NHibernate?
...hod, which indicates the index of the first item that you wish to get (basically the first data row in your page).
It also has a SetMaxResults(int i) method, which indicates the number of rows you wish to get (i.e., your page size).
For example, this criteria object gets the first 10 results of y...
Django Admin - change header 'Django administration' text
...ng" error message when I try to access the /myadmin/. Looks like I should call .autodiscover, but Django 1.7 it's supposed to be called automatically. Any clue?
– David Arcos
Jul 29 '14 at 16:53
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What is the 'dynamic' type in C# 4.0 used for?
C# 4.0 introduced a new type called 'dynamic'. It all sounds good, but what would a programmer use it for?
10 Answers
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How can I scroll a web page using selenium webdriver in python?
... one more thing. The reason why location_once_scrolled_into_view should be called without () is that location_once_scrolled_into_view is a Python property. see the source code here: selenium/webelement.py at d3b6ad006bd7dbee59f8539d81cee4f06bd81d64 · SeleniumHQ/selenium
– Dat...
SQL-Server: Error - Exclusive access could not be obtained because the database is in use
...t application connection beat my query's restore and subsequent MULTI_USER call. The restore failed to get exclusive access and old db was left in SINGLE_USER mode.
– Smörgåsbord
Dec 21 '16 at 18:50
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...; 对应表达式 a.b = c
__call(a, ...) 对应表达式 a(...)
面向对象”上面我们看到有__index这个重载，这个东西主要是重载了find key的操作。这...
Why can't non-default arguments follow default arguments?
...ply because they are mandatory, whereas default arguments are not. Syntactically, it would be impossible for the interpreter to decide which values match which arguments if mixed modes were allowed. A SyntaxError is raised if the arguments are not given in the correct order:
Let us take a look at k...
How to implement OnFragmentInteractionListener
...s HeadlinesFragment extends ListFragment {
OnHeadlineSelectedListener mCallback;
// Container Activity must implement this interface
public interface OnHeadlineSelectedListener {
public void onArticleSelected(int position);
}
@Override
public void onAttach(Activity ...
Google Maps API v3: How do I dynamically change the marker icon?
Using Google Maps API v3, how do I programmatically change the marker icon?
5 Answers
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