Swift-Kuery | SQL database abstraction layer | Database library
kandi X-RAY | Swift-Kuery Summary
kandi X-RAY | Swift-Kuery Summary
SQL database abstraction layer
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QUESTION
I'm pretty new to Swift, more specifically on Kitura. I'm using SwiftKueryPostgresql to handle communication with database.
I'm writting an ORM library for a specific project. I'm testing my connection like this (as I understood from documentation) :
...ANSWER
Answered 2018-Jul-05 at 13:31The Thread 1: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
error normally happens when force unwrapping and optional which is set to nil. I would suggest instead of doing self.pool = pool!
, you can do
guard self.pool = pool else {
return nil
}
The guard statement will unwrap the optional value for you and if it can't if will fall to the else.
A few things I noticed:
- In your Package.swift
the SwiftKuery
dependency is missing.
- It seems you have a typo in testable import myprojet
The line the error is pointing to is the deinit
function for the Connection
. This function gets called when the Connection
is out of scope or not referenced by another object to clear the memory. You may be trying to access the Connection
after it has been deleted thus getting an error throned.
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