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How to change a nullable column to not nullable in a Rails migration?
...re no records exist with NULL values in that column, you can pass a fourth parameter, which is the default value to use for records with NULL values:
change_column_null :my_models, :date_column, false, Time.now
share
...
Replace whole line containing a string using Sed
..._REPLACED/c\This line is removed by the admin.' /tmp/foo ; (when the first param is blank it edits in-file, otherwise creates a backup)
– AndreDurao
Apr 10 '18 at 11:19
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How to copy text from Emacs to another application on Linux
...
For I'm receiving error because there aren't params. I need to change the first line "(defun copy-to-clipboard ()" to "(defun copy-from-ubuntu (text &optional push)". This works for me :D
– Renato Cassino
Feb 18 '17 at 14:38
...
Android ListView Divider
...trinsic height, you should also call {@link #setDividerHeight(int)}
*
* @param divider The drawable to use.
*/
Looks like setDividerHeight() must be called in order for the divider to show up if it has no intrinsic height
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ASP.NET MVC: Custom Validation by DataAnnotation
...ValidationAttribute
{
public CombinedMinLengthAttribute(int minLength, params string[] propertyNames)
{
this.PropertyNames = propertyNames;
this.MinLength = minLength;
}
public string[] PropertyNames { get; private set; }
public int MinLength { get; private set; ...
What is stdClass in PHP?
...lass gives you is option to type hint it i.e. function(StdClass $a, array $params) v.s. checking if $a is object and instanceof.
– Dejan Marjanović
Apr 15 '14 at 21:02
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Convert Bitmap to File
...r visible
}
@Override
protected String doInBackground(Void... params) {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
file = new File(Environment.getExternalStorageDirectory() + File.separator...
How to change tab size on GitHub?
...es. As stated by mortenpi, this can be done by through an additional query parameter. See his answer for more details.
Original answer
Is that possible to change this configuration to 2 or 4 spaces?
No. It's only available as part of the editing feature through the Ace editor and the change i...
How can I create a two dimensional array in JavaScript?
...used to create an empty multidimensional, with the dimensions specified as parameters.
– Anderson Green
Apr 6 '13 at 16:49
3
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Weird Integer boxing in Java
...27,
* inclusive, and may cache other values outside of this range.
*
* @param i an {@code int} value.
* @return an {@code Integer} instance representing {@code i}.
* @since 1.5
*/
public static Integer valueOf(int i) {
if (i >= IntegerCache.low && i <= IntegerCache.high)
...