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Assigning default value while creating migration file
...old default as "1". After that slightly i changed migration file like this then it worked for me for setting default value on create table migration file.
t.boolean :active, :null => false,:default =>1. Worked for me.
My Rails framework version is 4.0.0
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Collections.emptyList() returns a List?
...ring> emptyList = Collections.emptyList();
this(name, emptyList);
}
then the emptyList() call would correctly return a List<String>.
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How to sort an array of objects by multiple fields?
...he line be if (a.city === b.city)? That is, if the two cities are the same then compare the prices, otherwise compare the cities.
– Steven Rands
Jul 19 '18 at 15:15
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How can I make a ComboBox non-editable in .NET?
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@Xam Then where does the border go? When googling a bit, it seems I have to do the drawing myself to have it look acceptable.
– Anders Lindén
Jul 22 '19 at 22:46
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How do I read / convert an InputStream into a String in Java?
...rowing out the solutions that have problems with line breaks / unicode and then (out of those that remain) saying which is fastest with or without external libraries.
– Steve Chambers
Aug 1 at 11:16
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Convert string in base64 to image and save on filesystem in Python
...kAAeLqlDIAAAAASUVORK5CYII='
Decoded the data using the base64 codec, and then write it to the filesystem.
# In Python 2.7
fh = open("imageToSave.png", "wb")
fh.write(img_data.decode('base64'))
fh.close()
# or, more concisely using with statement
with open("imageToSave.png", "wb") as fh:
fh....
Useful example of a shutdown hook in Java?
...er and let them run concurrently. When all the hooks have finished it will then run all uninvoked finalizers if finalization-on-exit has been enabled. Finally, the virtual machine will halt.
That is, a shutdown hook keeps the JVM running until the hook has terminated (returned from the run()-metho...
Why does HTML think “chucknorris” is a color?
...he letters are blocked into ada00e000e which is padded to ada00e000e00 but then reduced down to the typical HEX 6 digit value of [ad]a0[0e]00[0e]00 thus making ad0e0e which appears in the jsfiddle above.
– Martin
Jan 26 '16 at 22:26
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What's the difference between Spring Data's MongoTemplate and MongoRepository?
...ods or you can implement them in the base class
The Controller methods can then call methods in the Data access classes as needed.
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Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]
...p :: (IterableLike i, IterableLike j) ⇒ (a → b) → i → j
which is then further generalized by only requiring that a function exists that can convert the result to whatever data structure the user wants:
map :: IterableLike i ⇒ (a → b) → i → ([b] → c) → c
I admit that the synt...