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Rails migrations: self.up and self.down versus change
... For example, in your case what is the reverse operation of add_column to call when you rollback? Of course it's remove_column. What is the inverse of create_table? It's drop_table. So in these cases rails know how to rollback and define a down method is superfluous (you can see in the documentation...
Convert LocalDate to LocalDateTime or java.sql.Timestamp
... Watch out when converting LocalDateTime to DateTime as not all LocalDateTimes are valid DateTimes. Source: joda-time.sourceforge.net/faq.html#illegalinstant and just running into this.
– Christophe De Troyer
Aug 10 '15 at 8:53
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RESTful password reset
... Jun 19 '10 at 21:11
Daniel VassalloDaniel Vassallo
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How do you deal with configuration files in source control?
...ns. How do you deal with this in source control? Not check in this file at all, check it with different names or do something fancy altogether?
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Programmatically access currency exchange rates [closed]
... this, is there any information on what the parameters stand for? Specifically the "f" parameter. I can't find any info anywhere.
– Fishcake
Oct 8 '09 at 6:12
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How to break lines at a specific character in Notepad++?
... field, type ],\s*
In the Replace with text field, type ],\n
Click Replace All
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Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
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A little late here but generally I've seen this problem occur when you get a 'tablespace full' error when running in a 'innodb_file_per_table' mode. Without going into too much detail (more here), the database server's tablespace is defined by the inno...
How to merge remote changes at GitHub?
...eject was on a branch that I didn't have checked out. The branch I was actually on was succeeding. The solution was to git checkout other-branch; git pull; git push; git checkout branch-i-was-working-on.
– Noah Spurrier
Sep 18 '12 at 19:44
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What is the meaning of #XXX in code comments?
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XXX in a comment is usually a heads-up. It could be:
Something that's not implemented completely correctly.
Something that should be fixed later on.
Highlighting a possible problem spot.
Something you're not sure about, a question.
I've often p...
Making an iframe responsive
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This technique will work for all iframes, the trick is, the content in the iframe will need to be responsive as well, more on this here: benmarshall.me/responsive-iframes
– Ben Marshall
Aug 17 '18 at 16:53
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