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Entity Framework - Start Over - Undo/Rollback All Migrations
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You can rollback to any migration by using:
Update-Database -TargetMigration:"MigrationName"
If you want to rollback all migrations you can use:
Update-Database -TargetMigration:0
or equivalent:
Update-Database -TargetMigration:$InitialDatabase
In some cases you can also...
How big is too big for a PostgreSQL table?
... already run into a bit of a debate about the design, specifically the database.
2 Answers
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Haskell: Converting Int to String
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An example based on Chuck's answer:
myIntToStr :: Int -> String
myIntToStr x
| x < 3 = show x ++ " is less than three"
| otherwise = "normal"
Note that without the show the third line will not compile.
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Which is better, return “ModelAndView” or “String” on spring3 controller
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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JavaScript get window X/Y position for scroll
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Stash just a single file
...t checkout master
go about and do what you want, and then later simply rebase and/or merge the tmpbranch. It really isn't that much extra work when you need to do more careful tracking than stash will allow.
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Convert RGBA PNG to RGB with PIL
...e's a version that's much simpler - not sure how performant it is. Heavily based on some django snippet I found while building RGBA -> JPG + BG support for sorl thumbnails.
from PIL import Image
png = Image.open(object.logo.path)
png.load() # required for png.split()
background = Image.new("R...
Access to private inherited fields via reflection in Java
..."Field '" + fieldName
+ "' not found on class " + clazz);
}
(based on this answer)
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What is x after “x = x++”?
...iginal code
int x = 7;
x = x++;
Let's rewrite this to do the same thing, based on removing the ++ operator:
// behaves the same as the original code
int x = 7;
int tmp = x; // value of tmp here is 7
x = x + 1; // x temporarily equals 8 (this is the evaluation of ++)
x = tmp; // oops! we overwrote...
Installed Java 7 on Mac OS X but Terminal is still using version 6
...to move Mac OS X from Appels own System integrated Java packages to Oracle based Java Packages. The above solution is working fine as of Mac OS X 10.8.2
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