FMDB insert or replace do multiple entries - swift

Question

I have an sqlite3 table, every time I run my code, it adds multiple entries. How can I change this query to add only one entry?
CREATE TABLE "GroupTable" (
"id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
"memberId" TEXT NOT NULL,
"adminId" TEXT NOT NULL,
"name" TEXT NOT NULL
);
The method below shows how I am adding data:
func addDatatoList(info: ListModel ) -> Bool
{
sharedInstance.database!.open()
let isInserted = sharedInstance.database!.executeUpdate("INSERT or REPLACE INTO GroupTable(adminId, memberId, name) VALUES (?,?,?)", withArgumentsIn: [ info.adminId,info. memberId,info.name])
sharedInstance.database!.close()
return isInserted
}

Answer 1

You’re not supplying an id value, so INSERT OR REPLACE will never replace. You theoretically could add id parameter, passing NSNull() if the id value is NULL
func addDatatoList(info: ListModel) -> Bool {
guard let db = sharedInstance.database else { return false }
db.open()
defer { db.close() }
let sql = "INSERT or REPLACE INTO GroupTable(id, adminId, memberId, name) VALUES (?, ?, ?, ?)"
let values: [Any] = [info.id ?? NSNull(), info.adminId, info.memberId, info.name]
let isInserted = sharedInstance.database!.executeUpdate(sql, withArgumentsIn: values)
return isInserted
}
That having been said, if you did INSERT, you probably want to retrieve the row’s auto increment id value:
func addDatatoList(info: ListModel) -> Bool {
guard let db = sharedInstance.database else { return false }
db.open()
defer { db.close() }
let sql = "INSERT or REPLACE INTO GroupTable(id, adminId, memberId, name) VALUES (?, ?, ?, ?)"
let values: [Any] = [info.id ?? NSNull(), info.adminId, info.memberId, info.name]
let isInserted = sharedInstance.database!.executeUpdate(sql, withArgumentsIn: values)
if isInserted, info.id == nil {
let id = db.lastInsertRowId
// e.g., if `ListModel` is a reference type and `id` is mutable,
// you might update the value, e.g.
info.id = Int(id)
}
return isInserted
}
But, then again, if you're now programmatically determining whether you inserted or updated, you might as well have two SQL statements, one for INSERT and one for UPDATE.