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Postgres: “ERROR: cached plan must not change result type”
This exception is being thrown by the PostgreSQL 8.3.7 server to my application.
Does anyone know what this error means and what I can do about it?
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How to detect when facebook's FB.init is complete
... after FB.init() like before, as FB.init() seems to be asynchronous now. Wrapping your code into FB.getLoginStatus() response seems to do the trick of detecting when API is fully ready:
window.fbAsyncInit = function() {
FB.init({
//...
});
FB.getLoginStatus(function(response){
...
Why does ContentResolver.requestSync not trigger a sync?
...orking, and my sync works when I trigger it from the Dev Tools Sync Tester application, however when I call ContentResolver.requestSync(account, authority, bundle) from my ContentProvider, my sync is never triggered.
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What does the NS prefix mean?
...e for the Cocoa frameworks came from the NeXTSTEP libraries Foundation and AppKit (those names are still used by Apple's Cocoa frameworks), and the NextStep engineers chose to prefix their symbols with NS.
Because Objective-C is an extension of C and thus doesn't have namespaces like in C++, symbol...
Android LocationClient class is deprecated but used in documentation
...I... Enjoy developing :)
import android.location.Location;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.goo...
Token Authentication vs. Cookies
...
A typical web app is mostly stateless, because of its request/response nature. The HTTP protocol is the best example of a stateless protocol. But since most web apps need state, in order to hold the state between server and client, cookies...
What is a “feature flag”?
...(or Feature Toggle) is the ability to turn features (sub-sections) of your application on/off at easily:
perhaps via a re-deploy, or
some internal page where pages/features can be toggled live.
I guess the example there was that it's handy to have the control to reduce the feature-set somewhat ...
Gradle: Execution failed for task ':processDebugManifest'
...ror returned actually because I had a duplicated meta data tag pulling the application ID from strings.xml for use with parse. No parse related errors but that meta data caused the crash, I actually didnt see this error detail until I opened the gradle console tab in android studio v. 2.1.1
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Prevent user from seeing previously visited secured page after logout
...ers all those secured pages. For example, when they are all in the folder /app, then you need to specify the URL pattern of /app/*.
@WebFilter("/app/*")
Even more, you can do this job in the same Filter as where you're checking the presence of the logged-in user.
Don't forget to clear browser c...
How can I send an email by Java application using GMail, Yahoo, or Hotmail?
Is it possible to send an email from my Java application using a GMail account? I have configured my company mail server with Java app to send email, but that's not going to cut it when I distribute the application. Answers with any of using Hotmail, Yahoo or GMail are acceptable.
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