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MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
as the title says, I want to perform a find (one) for a document, by _id, and if doesn't exist, have it created, then whether it was found or was created, have it returned in the callback.
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How do I get the n-th level parent of an element in jQuery?
...g 17 '11 at 13:37
Frédéric HamidiFrédéric Hamidi
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How can I find my Apple Developer Team id and Team Agent Apple ID?
...ying to transfer an app. I am having troubles finding my team agent apple id and my team id. I have found it before and I have searched for 30 min without any luck now that i need it.
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Can vim monitor realtime changes to a file
...rom the help:
When a file has been detected to have
been changed outside of Vim and it
has not been changed inside of Vim,
automatically read it again. When the
file has been deleted this is not
done.
share...
Python/postgres/psycopg2: getting ID of row just inserted
...
cursor.execute("INSERT INTO .... RETURNING id")
id_of_new_row = cursor.fetchone()[0]
And please do not build SQL strings containing values manually. You can (and should!) pass values separately, making it unnecessary to escape and SQL injection impossible:
sql_stri...
Create dynamic URLs in Flask with url_for()
...lot o stuff with it, for example:
@app.route('/questions/<int:question_id>'): #int has been used as a filter that only integer will be passed in the url otherwise it will give a 404 error
def find_question(question_id):
return ('you asked for question{0}'.format(question_id))
For t...
Search text in stored procedure in SQL Server
... @Imad You can get the schema name by adding SCHEMA_NAME(o.schema_id) AS Schema_Name to the select clause.
– patricus
Jul 7 '16 at 15:07
6
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Modifying location.hash without page scrolling
...
Step 1: You need to defuse the node ID, until the hash has been set. This is done by removing the ID off the node while the hash is being set, and then adding it back on.
hash = hash.replace( /^#/, '' );
var node = $( '#' + hash );
if ( node.length ) {
node....
Deleting rows with MySQL LEFT JOIN
...se (delete orphans): DELETE t1 FROM table1 AS t1 LEFT JOIN t2 AS t2 ON t1.uid = t2.result WHERE t2.result IS NULL
– Urs
Aug 26 '13 at 18:19
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What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
...nt entity. A parent can have several children.
@Entity
class parent {
//id and other fields
@OneToMany (orphanRemoval = "true",cascade = CascadeType.REMOVE)
Set<Person> myChildern;
}
The orphanRemoval is an ORM concept, it tells if the child is orphaned. it should also be removed from...