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How to reset postgres' primary key sequence when it falls out of sync?
...value cannot be expressions.
It seems the best all-purpose solution is to call setval with false as the 3rd parameter, allowing us to specify the "next value to use":
SELECT setval(pg_get_serial_sequence('t1', 'id'), coalesce(max(id),0) + 1, false) FROM t1;
This ticks all my boxes:
avoids hard...
ViewBag, ViewData and TempData
...e Session as backing store, after the redirect is made the data is automatically evicted. The pattern is the following:
public ActionResult Foo()
{
// store something into the tempdata that will be available during a single redirect
TempData["foo"] = "bar";
// you should always redirec...
MongoDB: Combine data from multiple collections into one..how?
...e the resulting collection
At this point, you will have a new collection called users_comments that contains the merged data and you can now use that. These reduced collections all have _id which is the key you were emitting in your map functions and then all of the values are a sub-object inside...
android.widget.Switch - on/off event listener?
...tener to change the state & passed the switch to method(in my case API call) & then used the setChecked() method to change the state(like in onFailure/onError in API call). Hope that helps.
– deepak kumar
Feb 21 at 9:09
...
Android Fragment handle back button press [duplicate]
...
When you are transitioning between Fragments, call addToBackStack() as part of your FragmentTransaction:
FragmentTransaction tx = fragmentManager.beginTransation();
tx.replace( R.id.fragment, new MyFragment() ).addToBackStack( "tag" ).commit();
If you require more det...
How can I create an executable JAR with dependencies using Maven?
...omments.
Commonly this goal is tied to a build phase to execute automatically. This ensures the JAR is built when executing mvn install or performing a deployment/release.
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<configuration>
<archive>
...
Choose File Dialog [closed]
... that the file pressed is a directory in onClick just set the new path and call onCreateDialog again.
– Nathan Schwermann
Sep 8 '10 at 22:04
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Cross-thread operation not valid: Control 'textBox1' accessed from a thread other than the thread it
...use a dispatcher as descibed in the MSDN article:
How to: Make Thread-Safe Calls to Windows Forms Controls
So instead of setting the text property directly in the serialport1_DataReceived method, use this pattern:
delegate void SetTextCallback(string text);
private void SetText(string text)
{
// ...
Rails: fields_for with index?
...LucasRenan & @graphmeter - Please read the question again, you need to call <%= f.options[:child_index] %> in your rendered sub-form (In this case: _some_form.html.erb), not int the original builder. Answer updated for more clarification.
– Sheharyar
...
How to detect if a stored procedure already exists
...avel l that's what DBAs are for, and getting DBAs to talk to developers is called management. If developers and DBAs can't work together there's a problem with the company. Besides, properly implemented systems don't rely on user privilege to touch a database, that's what service accounts are for, a...