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R command for setting working directory to source file location in Rstudio
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Worked for me in RStudio v1.0.143 on Windows 10. If you select "Source on save", it will work just fine (you can print out the detected directory with "cat"). If you select the lines then execute them, then the result is null.
– Contango
Jun ...
Setting up foreign keys in phpMyAdmin?
..._id, in your case). Then, go to relation view (in the referring table) and select the referred column (so in your case foo.id) and the on update and on delete actions.
I think foreign keys are useful if you have multiple tables linked to one another, in particular, your delete scripts will become v...
How set maximum date in datepicker dialog in android?
...ting the setMaxDate of datePicker the setMaxDate is always highlighted and selected, here is the image
– hasnain_ahmad
Jun 15 '17 at 4:41
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Xcode 5: Code signing entitlement errors
... This worked for me too. I am using Xcode 6.3. I was unable to select apple dev account for code signing. Totally unrelated error message was displayed everytime "ios app id 'xxxxxxxxx' does not support changes to the maps feature". A simple xcode restart fixed it for me.
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Get value from hidden field using jQuery
...t to assign identifier to the hidden field; you can use name or class with selector like:
$('input[name=hiddenfieldname]').val();
or with assigned class:
$('input.hiddenfieldclass').val();
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Loop through files in a folder using VBA?
...2 Then
FileExtStr = ".xls": FileFormatNum = -4143
Else
Select Case xWb.FileFormat
Case 51:
FileExtStr = ".xlsx": FileFormatNum = 51
Case 52:
If Application.ActiveWorkbook.HasVBProject Then
FileExtStr = "....
Lock Escalation - What's happening here?
...mparing this value before and after running the main part of your script:
SELECT lock_escalation_desc FROM sys.tables WHERE name='yourtablename'
In my case, altering table to drop or add a constraint doesn't seem to modify this value.
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How to specify different Debug/Release output directories in QMake .pro file
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This one worked better than the selected answer. The selected one works, but if both debug and release are configured, the second block of settings remains.
– Paulo Carvalho
Jan 23 '18 at 16:59
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Set Locale programmatically
...haredPrefUtils.saveLocale(locale); // optional - Helper method to save the selected language to SharedPreferences in case you might need to attach to activity context (you will need to code this)
Resources resources = getResources();
Configuration configuration = resources.getConfiguration()...
Ruby on Rails: getting the max value from a DB column
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one more way
Bar.select("Max(bar) as max_bar").first.max_bar
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