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How do I remove documents using Node.js Mongoose?
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If you don't feel like iterating, try FBFriendModel.find({ id:333 }).remove( callback ); or FBFriendModel.find({ id:333 }).remove().exec();
mongoose.model.find returns a Query, which has a remove function.
Update for Mongoose v5.5.3 - remove() is now deprecated. Use deleteOne(), de...
What's the best way to send a signal to all members of a process group?
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kill -74313 -bash: kill: 74313: invalid signal specification If i add the kill -15 -GPID it worked perfectly.
– Adam Peck
Dec 24 '08 at 20:17
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菜单的背景颜色 - C/C++ - 清泛网 - 专注C/C++及内核技术
...，选择属性，接着会弹出这样一个对话框：
上面那个ID项就是该菜单项对应的ID号了，添加菜单项单击消息处理函数时会用到，而标明项里的内容就是菜单项要显示的文本了。
这里还得注意一下“弹出”这个选项，勾上这个...
PostgreSQL delete all content
....3/static/sql-delete.html
TRUNCATE is a PostgreSQL extension that provides a faster mechanism to
remove all rows from a table. TRUNCATE quickly removes all rows from a
set of tables. It has the same effect as an unqualified DELETE on each
table, but since it does not actually scan the tab...
Using setImageDrawable dynamically to set image in an ImageView
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Try this,
int id = getResources().getIdentifier("yourpackagename:drawable/" + StringGenerated, null, null);
This will return the id of the drawable you want to access...
then you can set the image in the imageview by doing the following
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AlertDialog.Builder with custom layout and EditText; cannot access view
...rence of alertDialog
EditText editText = (EditText) alertDialog.findViewById(R.id.label_field);
Update:
Because in code line dialogBuilder.setView(inflater.inflate(R.layout.alert_label_editor, null));
inflater is Null.
update your code like below, and try to understand the each code line
Ale...
How do I specify unique constraint for multiple columns in MySQL?
... That way combination of three would be unique? Or all individual three columns would be unique?
– Gary Lindahl
Sep 15 '11 at 0:03
100
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Oracle: how to UPSERT (update or insert into a table?)
... and the update where another process could successfully fire a delete. I did however use this pattern on a table that never has deletes fired against it.
– chotchki
Sep 29 '11 at 22:50
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How do I make and use a Queue in Objective-C?
...tableArray+QueueAdditions.h
@interface NSMutableArray (QueueAdditions)
- (id) dequeue;
- (void) enqueue:(id)obj;
@end
NSMutableArray+QueueAdditions.m
@implementation NSMutableArray (QueueAdditions)
// Queues are first-in-first-out, so we remove objects from the head
- (id) dequeue {
// if ([...
How to have an automatic timestamp in SQLite?
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Just declare a default value for a field:
CREATE TABLE MyTable(
ID INTEGER PRIMARY KEY,
Name TEXT,
Other STUFF,
Timestamp DATETIME DEFAULT CURRENT_TIMESTAMP
);
However, if your INSERT command explicitly sets this field to NULL, it will be set to NULL.
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