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ERROR: permission denied for sequence cities_id_seq using Postgres
...currval and nextval functions.
Also as pointed out by @epic_fil in the comments you can grant permissions to all the sequences in the schema with:
GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO www;
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How to generate a random alpha-numeric string?
... looking for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated).
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find -exec cmd {} + vs | xargs
...insignificant.
But you have to make sure that:
Your script will not assume that no
file will have space, tab, etc in
file name; the first version is
safe, the second is not.
Your script will not treat a file starting with "-" as an option.
So your code should look like this:
find . -exec cmd -...
Find unique rows in numpy.array
... the array with duplicate rows removed; it does not filter the array to elements that are unique in the original array. See here, for example..
– Brad Solomon
Nov 29 '17 at 22:08
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Switch branch names in git
...ere's a desciption of the problem. I was working on master and committed some stuff and then decided I wanted to put that work on hold. I backed up a few commits and then branched from before I started my crap work. Practically this works fine, I just now have a different branch as my main developme...
How to use OpenSSL to encrypt/decrypt files?
...d encryption and is vulnerable to padding oracle attacks. You should use something like age instead.
Encrypt:
openssl aes-256-cbc -a -salt -in secrets.txt -out secrets.txt.enc
Decrypt:
openssl aes-256-cbc -d -a -in secrets.txt.enc -out secrets.txt.new
More details on the various flags
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How to fight tons of unresolved variables warning in Webstorm?
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Use JSDoc:
/**
* @param {{some_unres_var:string}} data
*/
function getData(data){
console.log(data.some_unres_var);
}
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Get the name of the currently executing method
... variable for the top level Ruby program, but is there one for the current method?
5 Answers
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Centering a div block without the width
... half of its own width (actually the outer div's width, but they are the same). Ultimately that centers the content in whatever container it's in.
You may need that empty div at the end if you depend on your "product" content to size the height for the "product_container".
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Private setters in Json.Net
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I came here looking for the actual attribute that makes Json.NET populate a readonly property when deserializing, and that's simply [JsonProperty], e.g.:
[JsonProperty]
public Guid? ClientId { get; private set; }
Alternative S...