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How to fix Hibernate LazyInitializationException: failed to lazily initialize a collection of roles,
...ng transactionManager by adding the following to your spring configuration file:
<bean id="transactionManager"
class="org.springframework.orm.hibernate4.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<tx:annotation-driven ...
When to use leading slash in gitignore
...y. If you look at the github/gitignore repo more closely, you'll see most files use inconsistent rules about how patterns are written; it's very likely most were contributed by people who didn't bother to read the documentation nor test things out as you did.
So if that helps: You're right, be c...
How do I use variables in Oracle SQL Developer?
...put to the Query Result window? In my job I run queries to export to Excel files.
– tp9
Jun 9 '12 at 1:18
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Selecting element by data attribute
...ven more readable code by using .dataAttr('foo'), and results in a smaller file size after minification (compared to using .attr('data-foo')).
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Redirect from an HTML page
...ver redirects, so send a 301 status code. This is easy to do via .htaccess files using Apache, or via numerous plugins using WordPress. I am sure there are also plugins for all the major content management systems. Also, cPanel has very easy configuration for 301 redirects if you have that installed...
Fully custom validation error message with Rails
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You have to use a symbol so it will look up in your yml files, like validates_presence_of :address1, :message => :put_some_address_please
– Federico
Sep 4 '15 at 13:28
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Use Expect in a Bash script to provide a password to an SSH command
...
A simple Expect script:
File Remotelogin.exp
#!/usr/bin/expect
set user [lindex $argv 1]
set ip [lindex $argv 0]
set password [lindex $argv 2]
spawn ssh $user@$ip
expect "password"
send "$password\r"
interact
Example...
SharedPreferences.onSharedPreferenceChangeListener not being called consistently
... super.onCreate(savedInstanceState);
// load the XML preferences file
addPreferencesFromResource(R.xml.preferences);
}
}
Every time the menu button is pressed I create the PreferenceActivity from the main Activity:
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
...
throwing an exception in objective-c/cocoa
...xceptions for general flow-control, or simply to signify errors (such as a file not being accessible)"
Apple's conceptual Exception handling documentation explains the same, but with more words: "Important: You should reserve the use of exceptions for programming or unexpected runtime errors such a...
Dealing with multiple Python versions and PIP?
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It worked for me in windows this way:
I changed the name of python files python.py and pythonw.exe to python3.py pythonw3.py
Then I just ran this command in the prompt:
python3 -m pip install package
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