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Flask-SQLAlchemy how to delete all rows in a single table
...e query.
ex.
#for specific value
db.session.query(Model).filter(Model.id==123).delete()
db.session.commit()
Delete Single Record by Object
record_obj = db.session.query(Model).filter(Model.id==123).first()
db.session.delete(record_obj)
db.session.commit()
https://flask-sqlalchemy.palletsprojec...
grepping using the “|” alternative operator
...overflow.com/a/6775943/3933332 doesn't have?
– Rizier123
Mar 1 '15 at 5:35
3
@Rizier123 -- look a...
Remove redundant paths from $PATH variable
...
the thing is that depending on your OS a chain of configurations are executed. You need to make sure the PATH variable is not overwritten later. The easiest way to do that (for one user) is to overwrite it in the user's personal .bashrc, which commonly is locat...
Get hostname of current request in node.js Express
... missing something simple here, but I can't seem to find a way to get the hostname that a request object I'm sending a response to was requested from.
...
Generating a unique machine id
... that generates an id that is unique for a given machine running a Windows OS.
15 Answers
...
How to call a stored procedure from Java and JPA
...prepareCall("{call getEmployeeDetails(?, ?)}");
cstmt.setInt("employeeId", 123);
cstmt.setInt("companyId", 456);
ResultSet rs = cstmt.executeQuery();
Reference
JDBC documentation: Java SE 6
share
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...
How do you convert Html to plain text?
...e plain text look painful. Do you know how to fix?
– 123iamking
Jun 7 '16 at 7:24
...
Download large file in python with requests
...I'd like to use it for download big files (>1GB).
The problem is it's not possible to keep whole file in memory I need to read it in chunks. And this is a problem with the following code
...
What is the parameter “next” used for in Express?
...) {
// check for and maybe do something with req.user
});
Since /users/123 will match the route in your example first, that will first check and find user 123; then /users can do something with the result of that.
Route middleware is a more flexible and powerful tool, though, in my opinion, sin...
A non-blocking read on a subprocess.PIPE in Python
...
except ImportError:
from Queue import Queue, Empty # python 2.x
ON_POSIX = 'posix' in sys.builtin_module_names
def enqueue_output(out, queue):
for line in iter(out.readline, b''):
queue.put(line)
out.close()
p = Popen(['myprogram.exe'], stdout=PIPE, bufsize=1, close_fds=ON_P...