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Django select only rows with duplicate field values
...ithout this, the subquery fails. The extra values tricks the ORM into only selecting the name column for the subquery.
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Query for array elements inside JSON type
...src":"bar.png"}]
, "background":"background.png"}'::json)
)
SELECT *
FROM reports r, json_array_elements(r.data#>'{objects}') obj
WHERE obj->>'src' = 'foo.png';
The CTE (WITH query) just substitutes for a table reports.
Or, equivalent for just a single level of nesting:
SE...
In Eclipse, what can cause Package Explorer “red-x” error-icon when all Java sources compile without
...ers e.g __duplicatefile.java . To fix this, rightclick on the project and select : Show In > Navigator . Then delete the duplicate files with underscore and build your project.
– GraSim
May 29 '15 at 10:28
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How to change or add theme to Android Studio?
...
File->Settings->Editor->Colors & Fonts-> In scheme name select Darcula and apply to see a awesome dark background theme editor
Android Studio 3.1.2
File->Settings->Editor->Color Scheme-> In scheme name select Darcula and apply to see a awesome dark background theme e...
Best practice using NSLocalizedString
...on_title_login, forState: .Normal)
The project uses Google App Script to convert Sheets --> CSV , and Python script to convert CSV files --> Localizable.strings You can have a quick look at this example sheet to know what's possible.
...
Build unsigned APK file with Android Studio
...nu in the toolbar at the top (Open 'Edit Run/Debug configurations' dialog)
Select "Edit Configurations"
Click the "+"
Select "Gradle"
Choose your module as a Gradle project
In Tasks: enter assemble
Press Run
Your unsigned APK is now located in
ProjectName\app\build\outputs\apk
For detailed inf...
SQL left join vs multiple tables on FROM line?
...nts that have employees, but always list all companies.
So you do this:
SELECT * -- for simplicity
FROM Company, Department, Employee
WHERE Company.ID *= Department.CompanyID
AND Department.ID = Employee.DepartmentID
Note that the last one there is an inner join, in order to fulfill the crite...
Descending order by date filter in AngularJs
...
In my case, the orderBy is determined by a select box. I prefer Ludwig's response because you can set the sort direction in the select options as such:
$scope.options = [
{ label: 'Title', value: 'title' },
{ label: 'Newest', value: '...
How do you do block comments in YAML?
...rt about it, but if you use Sublime Text for your editor, the steps are:
Select the block
cmd+/ on Mac or ctrl+/ on Linux & Windows
Profit
I'd imagine that other editors have similar functionality too. Which one are you using? I'd be happy to do some digging.
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Double not (!!) operator in PHP
...It means if $row has a truthy value, it will return true, otherwise false, converting to a boolean value.
Here is example expressions to boolean conversion from php docs.
Expression Boolean
$x = ""; FALSE
$x = null; FALSE
var $x; FALSE
$x is und...