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How to empty/destroy a session in rails?
...
to delete a user's session
session.delete(:user_id)
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Mapping many-to-many association table with extra column(s)
...rvice>();
}
class UserService {
@ManyToOne
@JoinColumn(name = "user_id")
private User user;
@ManyToOne
@JoinColumn(name = "service_code")
private Service service;
@Column(name = "blocked")
private boolean blocked;
}
class Service {
@OneToMany(mappedBy = "se...
Error when testing on iOS simulator: Couldn't register with the bootstrap server
...unchd that belongs to your main user, e.g.,
sudo kill -9 `ps aux | egrep 'user_id .*[0-9] /sbin/launchd' | awk '{print $2}'`
substituting your main user name for user_id. Logging in again as your normal user gets you back to a sane state. Kinda painful, but less so than a full reboot.
details:
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How do you delete an ActiveRecord object?
...g Rails 5 and above, the following solution will work.
#delete based on id
user_id = 50
User.find(id: user_id).delete_all
#delete based on condition
threshold_age = 20
User.where(age: threshold_age).delete_all
https://www.rubydoc.info/docs/rails/ActiveRecord%2FNullRelation:delete_all
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“Insert if not exists” statement in SQLite
...sert into bookmarks (users_id, lessoninfo_id)
select 1, 167
EXCEPT
select user_id, lessoninfo_id
from bookmarks
where user_id=1
and lessoninfo_id=167;
This is the fastest way.
For some other SQL engines, you can use a Dummy table containing 1 record.
e.g:
select 1, 167 from ONE_RECORD_DUMMY_TAB...
MySQL Creating tables with Foreign Keys giving errno: 150
...AR(40));
CREATE TABLE userroles(
id INT AUTO_INCREMENT PRIMARY KEY,
user_id INT NOT NULL,
FOREIGN KEY(user_id) REFERENCES users(id));
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Twitter API returns error 215, Bad Authentication Data
...n 1.
$friendsJson = $connection->get('/friends/ids.json?cursor=-1&user_id=34342323');
This will return you list of user's friends.
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ViewParam vs @ManagedProperty(value = “#{param.id}”)
... command components.
Example:
<f:metadata>
<f:viewParam id="user_id" name="id" value="#{bean.user}"
required="true" requiredMessage="Invalid page access. Please use a link from within the system."
converter="userConverter" converterMessage="Unknown user ID."
/>
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Why does Python print unicode characters when the default encoding is ASCII?
...ascii' codec can't encode character u'\xe9'
in position 0: ordinal not in range(128)
Lets exit Python and discard the bash shell.
We'll now observe what happens after Python outputs strings. For this we'll first start a bash shell within a graphic terminal (I use Gnome Terminal) and we'll set...
Has Facebook sharer.php changed to no longer accept detailed parameters?
...to false for non-canvas apps
);
$facebook = new Facebook($config);
$user_id = $facebook->getUser();
?>
<html>
<head></head>
<body>
<?php
if($user_id) {
// We have a user ID, so probably a logged in user.
// If not, we'll get an exceptio...