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Good tutorials on XMPP? [closed]
...and Presence Protocol (XMPP) is an open technology for real-time communication " and a list of XEP specifications. For instance articles explaining the basics and terminology - stanzas, IQ, presence, etc, etc. Even the Wikipedia page misses this, unsurprisingly the open-source projects assume you ...
MySQL复制的概述、安装、故障、技巧、工具 - 数据库(内核) - 清泛网 - 专注...
...安装
先在主服务器上创建复制账号：
mysql> GRANT REPLICATION SLAVE ON *.*
TO '<SLAVE_USER>'@'<SLAVE_HOST>'
IDENTIFIED BY '<SLAVE_PASSWORD>';
注：出于安全性和灵活性的考虑，不要把root等具有SUPER权限用户作为复制账号。
然后设置主...
“tag already exists in the remote" error after recreating the git tag
...oment you pushed the dev tag on remote. Copy the commit id and git reset --mixed <commmit_id_from_reflog> this way you know your tag was in sync with the remote at the moment you pushed it and no conflicts will arise.
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The model used to open the store is incompatible with the one used to create the store
...t add new entity to the data base and go ahead - you need to perform migration!
For those who doesn't want to dig into documentation and is searching for a quick fix:
Open your .xcdatamodeld file
click on Editor
select Add model version...
Add a new version of your model (the new group of datamod...
Download a file with Android, and showing the progress in a ProgressDialog
I am trying to write a simple application that gets updated. For this I need a simple function that can download a file and show the current progress in a ProgressDialog . I know how to do the ProgressDialog , but I'm not sure how to display the current progress and how to download the file in t...
Using a custom image for a UITableViewCell's accessoryView and having it respond to UITableViewDeleg
...iews to use (they now subclass OPTableViewController).
Firstly, this function returns a new detail disclosure button using our custom graphic:
- (UIButton *) makeDetailDisclosureButton
{
UIButton * button = [UIButton outpostDetailDisclosureButton];
[button addTarget: self
actio...
Transparent ARGB hex value
...lly transparent. Values in between are semi-transparent, i.e. the color is mixed with the background color.
To get a fully transparent color set the alpha to zero. RR, GG and BB are irrelevant in this case because no color will be visible. This means #00FFFFFF ("transparent White") is the same colo...
SQL left join vs multiple tables on FROM line?
...ct. WHERE clause should only contain RESTRICTIONS to the resultset. If you mix table join criteria with resultset restrictions, you (and others) will find your query harder to read. You should definitely use JOINs and keep the FROM clause a FROM clause, and the WHERE clause a WHERE clause.
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Ng-model does not update controller value
Probably silly question, but I have my html form with simple input and button:
13 Answers
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How do I override __getattr__ in Python without breaking the default behavior?
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@fed.pavlo are you sure? Maybe you mixed __getattr__ and __getattribute__?
– José Luis
Sep 16 '16 at 7:41
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