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How to show SQL queries run in the Rails console?
When I run queries (e.g. MyModel.where(...) or record.associated_things ) in the console, how can I see the actual database queries being run so I can gain more understanding of what is happening?
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Removing a model in rails (reverse of “rails g model Title…”)
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:( Read the first line and did it. It was my fault, but a correctly-ordered answer may have helped.
– Mike T
Jul 22 '13 at 19:40
4
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How to write an async method with out parameter?
...intellisense helps by copying the variable name(s) from the delegate.
int myOp;
bool result = await GetDataTaskAsync(op => myOp = op);
This particular approach is like a "Try" method where myOp is set if the method result is true. Otherwise, you don't care about myOp.
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A Java collection of value pairs? (tuples?)
...ples that is easy enough to write on your own. For example, off the top of my head:
public class Pair<L,R> {
private final L left;
private final R right;
public Pair(L left, R right) {
assert left != null;
assert right != null;
this.left = left;
this.right = right;
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How to change the decimal separator of DecimalFormat from comma to dot/point?
...is ok
a.toPlainString() // returns "1.2" always
I have edited a part of my message that made no sense since it proved to be due the human error (forgot to commit data and was looking at the wrong thing).
Same as BigDecimal can be said for any Java .toString() functions. I guess that is good in s...
Swift - How to convert String to Double
...et englishUKCurrency = formatter.number(from: "£9,999.99")
Read more on my blog post about converting String to Double types (and currency).
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disable maven download progress indication
...CI machines maven local repository is purged before every build. As result my build logs always have a bunch of noise like this
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How to convert wstring into string?
...es to convert the other way. Because I personally like one-liners, here is my version: std::wstring str = std::wstring_convert<std::codecvt_utf<wchar_t>>().from_bytes("some string");
– Guss
Nov 11 '13 at 12:59
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How to disable/enable the sleep mode programmatically in iOS?
...ep mode in one app will affect the entire device. Like if I disable it in my app and then exit the app, will it still be disabled after the app exits? Do I need to check whether it's active or not, and then reenable it on the way out?
– Scott Kilbourn
Sep 16 ...
How to detect if app is being built for device or simulator in Swift
... @daniel This works well and it's actually more straightforward than my solution. However it's worth noting that it's more limited than an actual preprocessor step. If you need some part of the code not to be included in the target (e.g. you want to choose between two imports at compile time),...