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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...o do an upsert, which is what MySQL calls INSERT ... ON DUPLICATE UPDATE and the standard supports as part of the MERGE operation.
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How do you create optional arguments in php?
... a null check. Literals include arrays (array() or []), booleans, numbers, strings, and null.
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REST API Token-based Authentication
...the baseauth password. For improved robustness, I recommend using a random string instead of the timestamp as a "nonce" to prevent replay attacks (two legit requests could be made during the same second). Instead of providing seperate "shared secret" and "api key" fields, you can simply use the api ...
Updating address bar with new URL without hash or reloading the page
...he MDN docs.
TL;DR, you can do this:
window.history.pushState("object or string", "Title", "/new-url");
See my answer to Modify the URL without reloading the page for a basic how-to.
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Rails migrations: Undo default setting for a column
...ip DEFAULT at schema level:
def self.up
change_column :table, :column, :string, :null => false, :default => ""
change_column_default(:table, :column, nil)
end
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Create dynamic URLs in Flask with url_for()
... I have a question, in the first example, the index method was passed as a string while in the second method, the find_question is being passed as variable. Why?
– आनंद
Mar 26 '17 at 10:05
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Executing an EXE file using a PowerShell script
...oks like you're specifying both the EXE and its first argument in a single string e.g; '"C:\Program Files\Automated QA\TestExecute 8\Bin\TestExecute.exe" C:\temp\TestProject1\TestProject1.pjs /run /exit /SilentMode'. This won't work. In general you invoke a native command that has a space in its pa...
Fast stable sorting algorithm implementation in javascript
...od is about 20 times slower than native array.sort, see test here for both strings and integers -> jsfiddle.net/QC64j
– davidkonrad
Mar 4 '14 at 15:05
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How to get active user's UserDetails
...Authentication doesn't strictly have to contain a UserDetails. It can be a string or any other type.
If you don't want to call SecurityContextHolder directly, the most elegant approach (which I would follow) is to inject your own custom security context accessor interface which is customized to mat...
Where is the syntax for TypeScript comments documented?
...e foo function
* @param bar This is the bar parameter
* @returns returns a string version of bar
*/
function foo(bar: number): string {
return bar.toString()
}
This will cause editors like VS Code to display it as the following:
...