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Xcode: Build Failed, but no error messages
...port Navigator present in Navigator window.
Open Navigator by pressing Hide/Show Navigator button present in top-left side of Xcode.
Open Report Navigator by pressing last button present on list of buttons in Navigator window.
Here you can view reasons either By Group or By Time
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How can I check whether a option already exist in select by JQuery
...h can be good for beginners. Certainly not the best answer, but it is a valid one.
– roberthuttinger
Apr 9 '13 at 14:42
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How to move columns in a MySQL table?
Currently I am having the following MySQL table: Employees (empID, empName, department);
4 Answers
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Spring DAO vs Spring ORM vs Spring JDBC
...ate you to write DAO, and to write them well. As such, it does neither provide interfaces nor implementations nor templates to access your data. When writing a DAO, you should annotate them with @Repository so that exceptions linked to the underlying technology (JDBC, Hibernate, JPA, etc.) are consi...
Overwriting my local branch with remote branch [duplicate]
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I did this with one slight change and it didn't work: git fetch --all, git reset --hard SHA1OFANOLDCOMMIT, (some other stuff), git reset --hard origin/branch. The end result was that I was still at the old commit. So, this appro...
How to reset a single table in rails?
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In case anyone tried this and got an error, I did ActiveRecord::Base.connection.execute("DELETE from 'yourtablename'") and it worked because it would give me an error that said sqlite_sequence where name = 'yourtablename' is not a valid table name or something like that.
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Rails: select unique values from a column
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I did a: group(:rating).collect { |r| r.rating } Since map == collect, where can I read about this sintax you used (&:rating)? I don't see this in Ruby's documentation.
– alexandrecosta
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Detecting 'stealth' web-crawlers
...claimed user-agent strings and, if the client claimed to be a legitimate spider but not on the whitelist, it performed DNS/reverse-DNS lookups to verify that the source IP address corresponds to the claimed owner of the bot. As a failsafe, these actions were reported to the admin by email, along wi...
How to generate and validate a software license key?
...ple) SHA1
Unpack the SHA1 hash as an alphanumeric string. This is the individual user's "Product Key"
Within the program, do the same hash, and compare with the product key. If equal, OK.
But, I repeat: this won't prevent piracy
I have recently read that this approach is not cryptographically ...
How to detect input type=file “change” for the same file?
...t will erase the file path making it changeable every time.
Example on jsFiddle.
Or you can simply use .prop("value", ""), see this example on jsFiddle.
jQuery 1.6+ prop
Earlier versions attr
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