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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
... a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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Difference between compile and runtime configurations in Gradle
My question is a little bit common, but it is linked with Gradle too.
1 Answer
1
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use initial width for element not working in IE
I have a graph plugin that inserts canvas and a legend <table> to its container. In this plugin the table has no width defined and in my CSS there is a width for tables inside that container were my plugin gets inserted.
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How do I convert a Django QuerySet into list of dicts?
...follow
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edited Jan 27 '17 at 0:22
answered Oct 18 '11 at 17:55
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String.Join method that ignores empty strings?
...similar to PHP's implode, but any null elements in the array are replaced with an empty string, so thatc:
5 Answers
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Javascript : Send JSON Object with Ajax?
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With jQuery:
$.post("test.php", { json_string:JSON.stringify({name:"John", time:"2pm"}) });
Without jQuery:
var xmlhttp = new XMLHttpRequest(); // new HttpRequest instance
xmlhttp.open("POST", "/json-handler");
xmlhttp....
Start an Activity with a parameter
...hich is your id into the new Intent.
Intent intent = new Intent(FirstActivity.this, SecondActivity.class);
Bundle b = new Bundle();
b.putInt("key", 1); //Your id
intent.putExtras(b); //Put your id to your next Intent
startActivity(intent);
finish();
Then grab the id in your new Activity:
Bundle ...
Highlight bash/shell code in markdown
...gine and the markdown flavour. There is no standard for this. If you mean github flavoured markdown for example, shell should work fine. Aliases are sh, bash or zsh. You can find the list of available syntax lexers here
shar...
Can we convert a byte array into an InputStream in Java?
...InputStream in Java? I have been looking on the internet but couldn't find it.
2 Answers
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What is the difference between max-device-width and max-width for mobile web?
...een a tablet or phone which has a browser NOT opened maximized - I suppose it is possible in a hybrid app, but that is a different case). Max-width would certainly be more universal.
– Jason
Jan 15 '14 at 20:34
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