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Rails filtering array of objects by attribute value
So I perform a query to the db and I have a complete array of objects:
5 Answers
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SQLite UPSERT / UPDATE OR INSERT
...r in a single statement. Plus you get all the other features, improvements and bug fixes that usually come with a more recent release.
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SQL query for finding records where count > 1
...AYMENT . Within this table I have a user ID, an account number, a ZIP code and a date. I would like to find all records for all users that have more than one payment per day with the same account number.
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Multiple file extensions in OpenFileDialog
... ?
I have Filter = "BMP|*.bmp|GIF|*.gif|JPG|*.jpg|PNG|*.png|TIFF|*.tiff"
and I want to create groups so JPG are *.jpg and *.jpeg, TIFF are *.tif and *.tiff and also 'All graphic types'? How can I do that?
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What does 'require: false' in Gemfile mean?
...application doensn't need. So I :require => false these particular gems and explicitly require "thegem" from the rake task. This would then save memory in the main app processes and startup time etc. App performance, however, should not be affected even if you require these additional gems in eve...
Using app.configure in express
I found some code where they set up Express without using app.configure and I was wondering, what's the difference between using app.configure without an environment specifier and not using it?
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JavaScript hard refresh of current page
...page via JavaScript?
Hard refresh means getting a fresh copy of the page AND refresh all the external resources (images, JavaScript, CSS, etc.).
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What's the difference between ASCII and Unicode?
What's the exact difference between Unicode and ASCII?
9 Answers
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How to create an empty file at the command line in Windows?
How to create an empty file at the DOS/Windows command-line?
32 Answers
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Is an index needed for a primary key in SQLite?
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It does it for you.
INTEGER PRIMARY KEY columns aside, both UNIQUE and PRIMARY KEY
constraints are implemented by creating an index in the database (in
the same way as a "CREATE UNIQUE INDEX" statement would). Such an
index is used like any other index in the database to optimize
que...