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How do I get a raw, compiled SQL query from a SQLAlchemy expression?
... type of data being passed. Always use bound parameters when
programmatically invoking non-DDL SQL statements against a relational
database.
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ReactJS Two components communicating
...ss a handler from <List /> to <Filters />, which could then be called on the onChange event to filter the list with the current value.
JSFiddle for #1 →
/** @jsx React.DOM */
var Filters = React.createClass({
handleFilterChange: function() {
var value = this.refs.filterInput.g...
Add & delete view from Layout
... ViewGroup extends View implements ViewParent, ViewManager. nicer to call it with casting to (ViewGroup)
– Mercury
Apr 25 '17 at 21:30
...
How to use Servlets and Ajax?
...ver, last years it's more than often Asynchronous JavaScript and JSON. Basically, you let JS execute an asynchronous HTTP request and update the HTML DOM tree based on the response data.
Since it's pretty a tedious work to make it to work across all browsers (especially Internet Explorer versus oth...
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...
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
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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...
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...
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>
...