大约有 18,335 项符合查询结果（耗时：0.0287秒） [XML]
Rails find_or_create_by more than one attribute?
...ibutes can be connected with an and:
GroupMember.find_or_create_by_member_id_and_group_id(4, 7)
(use find_or_initialize_by if you don't want to save the record right away)
Edit: The above method is deprecated in Rails 4. The new way to do it will be:
GroupMember.where(:member_id => 4, :group...
Get value when selected ng-option changes
...
as Artyom said you need to use ngChange and pass ngModel object as argument to your ngChange function
Example:
<div ng-app="App" >
<div ng-controller="ctrl">
<select ng-model="blisterPackTemplateSelected" ng-chang...
jQuery: select all elements of a given class, except for a particular Id
...
Use the :not selector.
$(".thisclass:not(#thisid)").doAction();
If you have multiple ids or selectors just use the comma delimiter, in addition:
(".thisclass:not(#thisid,#thatid)").doAction();
...
Best practice for nested fragments in Android 4.0, 4.1 (
...
Limitations
So nesting fragments inside another fragment is not possible with xml regardless of which version of FragmentManager you use.
So you have to add fragments via code, this might seem like a problem, but in the long run makes your layouts superflexibl...
How to change the foreign key referential action? (behavior)
...ess:
Suppose, a table1 has a foreign key with column name fk_table2_id, with constraint name fk_name and table2 is referred table with key t2 (something like below in my diagram).
table1 [ fk_table2_id ] --> table2 [t2]
First step, DROP old CONSTRAINT: (reference)
ALTER TABLE `t...
How to get last inserted row ID from WordPress database?
...dPress plugin has a table with a AUTO_INCREMENT primary key field called ID. When a new row is inserted into the table, I'd like to get the ID value of the insertion.
...
List of lists changes reflected across sublists unexpectedly
...s visible via all three references to it:
x = [1] * 4
l = [x] * 3
print(f"id(x): {id(x)}")
# id(x): 140560897920048
print(
f"id(l[0]): {id(l[0])}\n"
f"id(l[1]): {id(l[1])}\n"
f"id(l[2]): {id(l[2])}"
)
# id(l[0]): 140560897920048
# id(l[1]): 140560897920048
# id(l[2]): 140560897920048
x...
Use LINQ to get items in one List, that are not in another List
...sion:
var result = peopleList2.Where(p => !peopleList1.Any(p2 => p2.ID == p.ID));
An alternate way of expressing this via LINQ, which some developers find more readable:
var result = peopleList2.Where(p => peopleList1.All(p2 => p2.ID != p.ID));
Warning: As noted in the comments,...
Finding the id of a parent div using Jquery
...arent of the button.
The easiest of the two is probably the closest.
var id = $("button").closest("div").prop("id");
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Get the latest record from mongodb collection
...oDB are B-Trees. Searching a B-Tree is a O(logN) operation, so even find({_id:...}) will not provide constant time, O(1) responses.
That stated, you can also sort by the _id if you are using ObjectId for you IDs. See here for details. Of course, even that is only good to the last second.
You may t...