I know there are many solutions provided regarding multiple insertion in sqlite3 but I am looking for efficient method in which data is getting inserted into two tables and data of second table is dependent on first table. This is a node js application.
I have two tables programs and tests in sqlite3. Table tests contains id of programs i.e. one program can contains multiple tests.
The suggested method on official page of sqlite3 module is as follows:
var sqlite3 = require('sqlite3').verbose();
var db = new sqlite3.Database(':memory:');
db.serialize(function() {
db.run("CREATE TABLE lorem (info TEXT)");
var stmt = db.prepare("INSERT INTO lorem VALUES (?)");
for (var i = 0; i < 10; i++) {
stmt.run("Ipsum " + i);
}
stmt.finalize();
db.each("SELECT rowid AS id, info FROM lorem", function(err, row) {
console.log(row.id + ": " + row.info);
});
});
db.close();
As In my requirement I have to insert data in tow tables so I am using the following code:
var programData = resp.program_info; // contains complete data of programs and tests
db1.run("INSERT INTO programs (`parent_prog_id`, `prog_name`, `prog_exercises`, `prog_orgid`, `prog_createdby`, `prog_created`, `prog_modified`, `prog_status`) VALUES (?,?,?,?,?,?,?,?)",prog.parent_program_id,prog.programName, JSON.stringify(prog), req.session.org_id, prog.created_by, prog.created_at, prog.updated_at, prog.program_status,function(err){
if(err){
throw err;
}else{
var count = 1;
var step2PostedData = prog;
for (i in step2PostedData.testsInfo) {
var c = 0;
for(j in step2PostedData.testsInfo[i]){
var obj = Object.keys(step2PostedData.testsInfo[i])[c];
db1.prepare("INSERT INTO `tests` ( `parent_name`,`test_name`, `test_alias`, `sequences`, `duration`, `prog_id`, `org_id`, `test_createdby`, `test_created`, `test_modified`, `test_status`) VALUES(?,?,?,?,?,?,?,?,?,?,?)")
.run(count, obj,
step2PostedData.testsInfo[i][j].alias,
step2PostedData.testsInfo[i][j].sequences,
step2PostedData.testsInfo[i][j].duration,
this.lastID, // using this I am getting program id
req.session.org_id,
prog.created_by,
prog.created_at,
prog.updated_at,
prog.program_status);
c++;
count++;
}
}
Now, my query is If I am using the suggested method then I am not getting last inserted program id from programs table. without callback.
e.g. If I use the following code;
var stmt = db1.prepare("INSERT INTO programs (`parent_prog_id`, `prog_name`, `prog_exercises`, `prog_orgid`, `prog_createdby`, `prog_created`, `prog_modified`, `prog_status`) VALUES (?,?,?,?,?,?,?,?)";
var stmt2 = db1.prepare("INSERT INTO `tests` ( `parent_name`,`test_name`, `test_alias`, `sequences`, `duration`, `prog_id`, `org_id`, `test_createdby`, `test_created`, `test_modified`, `test_status`) VALUES(?,?,?,?,?,?,?,?,?,?,?)")
programData.forEach(function(prog){
// Inserts data in programs table
stmt.run(prog.parent_program_id,prog.programName, JSON.stringify(prog), req.session.org_id, prog.created_by, prog.created_at, prog.updated_at, prog.program_status);
for (i in step2PostedData.testsInfo) {
var c = 0;
for(j in step2PostedData.testsInfo[i]){
var obj = Object.keys(step2PostedData.testsInfo[i])[c];
stmt2.run(
count,
obj,
step2PostedData.testsInfo[i][j].alias,
step2PostedData.testsInfo[i][j].sequences,
step2PostedData.testsInfo[i][j].duration,
'what should be there',// How to get last program inserted ID there
req.session.org_id,
prog.created_by,
prog.created_at,
prog.updated_at,
prog.program_status);
} // inner for loop ends
} // outer for loop ends
stmt.finalize();
stmt2.finalize();
});
If I use this.lastID that returns null, obviously as no callback is
now.
If I use sqlite3_last_insert_rowid() then
sqlite3_last_insert_rowid is not defined error.
If I use last_insert_rowid() then last_insert_rowid() is not
defined.
Query:
How can I insert last inserted program id there, Currently I am getting last program id as null?
Edit:
If and only if using callback is the way or method to get the last ID then I will keep my code running as it is currently. Can anyone please suggest how can I increase the speed of insertion.
Thank you!
sqlite3_last_insert_rowid() is a part of the C API.
last_insert_rowid() is an SQL function.
If the documentation tells you that lastID is valid inside the callback, then you must use the callback.
Just move all the child INSERTs into the completion callback of the parent INSERT.
(The suggested code is not intended to show how to get the last inserted ID; it just demonstrates that the values actually have been inserted.)
I am trying below code but its throwing similar result every time.. Let me know if i am doing something wrong
driver.get("https://www.google.com/search?hl=en&gl=in&tbm=nws&authuser=0&q=The+Telegraph%27s+Production+Manager+To+Take+Over+The&gws_rd=ssl");
java.util.List<WebElement> competitor_name = driver.findElements(By.className("slp"));
for (int i = 0; i < competitor_name.size(); i++)
{
String cmp_name = competitor_name.get(i).findElement(By.xpath("//span[#class='_tQb _IId']")).getText();
System.out.println("Competitor name is : "+cmp_name );
}
Can you try below way which will build correct xpath so that we get out of this issue
String cmp_name = competitor_name.get(i).findElement(By.xpath("span[#class='_tQb _IId']")).getText();
I know this question has been asked a bunch of times, but none of the answers (or at least what i took away from them) was a help to my particiular problem.
I want to dynamically change a part of the variable path, so i don't have to repeat the same code x-times with just two characters changing.
Here's what i got:
In the beginning of my script, i'm setting the reference to PlayerData scripts, attached to the GameManager object like this:
var P1 : P1_Data;
var P2 : P2_Data;
function Start(){
P1 = GameObject.Find("GameManager").GetComponent.<P1_Data>();
P2 = GameObject.Find("GameManager").GetComponent.<P2_Data>();
}
Later, i want to access these scripts using the currentPlayer variable to dynamically adjust the path:
var currentPlayer : String = "P1"; //this actually happens along with some other stuff in the SwitchPlayers function, i just put it here for better understanding
if (currentPlayer.PlayerEnergy >= value){
// do stuff
}
As i was afraid, i got an error saying, that PlayerEnergy was not a part of UnityEngine.String.
So how do I get unity to read "currentPlayer" as part of the variable path?
Maybe some parse function I haven't found?
Or am I going down an entirely wrong road here?
Cheers
PS: I also tried putting the P1 and P2 variables into an array and access them like this:
if (PlayerData[CurrentPlayerInt].PlayerEnergy >= value){
// do stuff
}
to no success.
First of all,
var currentPlayer : String = "P1"
here P1 is just string, not the previous P1/P2 which are referenced to two scripts. So, if you want, you can change
currentPlayer.PlayerEnergy >= value
to
P1.PlayerEnergy >= value
or,
P2.PlayerEnergy >= value
But if you just want one function for them, like
currentPlayer.PlayerEnergy >= value
Then you have to first set currentPlayer to P1/P2 which I assume you are trying to do. You must have some codes that can verify which player is selected. Then, maybe this can help -
var playerSelected: int = 0;
var currentPlayerEnergy: int = 0;
.....
//Use your codes to verify which player is selected and then,
if (playerSelected == 1) {
currentPlayerEnergy = P1.PlayerEnergy;
} else if (playerSelected == 2) {
currentPlayerEnergy = P2.PlayerEnergy;
}
//Now use your favorite function
if (currentPlayerEnergy >= value) {
//Do stuff
}
As there was no reply providing the answer I needed, I'll share the solution that did the trick for me, provided by a fellow student.
Instead of having the PlayerData scripts pre-written, I generate them using a public class function in a Playermanager script. This generates the Playerdata as attached scripts, saved into an array.
I can then access them through Playermanager.Playerlist[Playernumber].targetvariable.
Which is what I wanted to do, only with the Playerdata being attached to a script instead of a gameobject. And it works great!
Here's the full code of my Playermanager Script:
//initialise max players
public var maxplayers : int = 2;
// Initialise Playerlist
static var Players = new List.<PlayerData>();
function Start () {
for (var i : int = 0; i < maxplayers; i++){
var Player = new PlayerData();
Players.Add(Player);
Players[i].PlayerName = "Player " + i;
}
DontDestroyOnLoad (transform.gameObject);
}
public class PlayerData {
public var PlayerName : String;
public var PlayerEnergy : int = 15;
public var Fleet : List.<GameObject> = new List.<GameObject>();
}
As you see, you can put any type of variable in this class.
I hope this helps some of you who have the same problem.
cheers,
Tux
i have some problem with changing value in QTableView cell.
ui->search_results->show();
int num = model->rowCount();
for (int i = 0; i<num; i++) {
QSqlRecord rec = model->record(i);
QString file_chron = rec.value(1).toString();
QString file_age = get_file_agestring_from_chron(file_chron);
//model->setData(model->index(i,1), QVariant(file_age), Qt::EditRole);
rec.setValue(1,file_age);
it seems that both functions work as they should in a loop
qDebug()<<rec.value(1).toString()+" "+rec.value(2).toString()+" "+rec.value(3).toString()+" "+rec.value(4).toString()+" "+rec.value(5).toString();
}
but outside we have old value.
qDebug()<<model->data(model->index(3,1)).toString();
ui->search_results->setModel(model);
ui->search_results->hideColumn(4);
i need to reimplement value inside this field.
I think that it is access error, but i can't understand how to set new value!
sorry, i can't add tag QSqlQueryModel
You are operation on QSqlRecord rec; which is copy of the record instead of the reference to it. As for setting data - see model : setData function
I can get docs by category like this:
IndexSearcher searcher = new IndexSearcher(dir);
Term t = new Term("category", "Feline");
Query query = new TermQuery(t);
Hits hits = searcher.Search(query);
for (int c = 0; c < hits.Length(); c++)
{
Document d = hits.Doc(c);
Console.WriteLine(c + " " + d.GetField("category").StringValue());
}
Now I would like to obtain the TermFreqVector for the docs in hits. I would usually do this like so:
for (int c = 0; c < searcher.MaxDoc(); c++)
{
TermFreqVector TermFreqVector = IndexReader.GetTermFreqVector(c, "content");
String[] terms = TermFreqVector.GetTerms();//get the terms
int[] freqs = TermFreqVector.GetTermFrequencies();//
}
However, I am not sure how to do it in my scenario (i.e. just get them for the docs in hits). The docs also have a db pk.
Thanks.
Christian
The first parameter to IndexReader.GetTermFreqVector ("c" in your example) is the document number. hits.id(c) will return the ID of the cth result. So you'd do something like:
int Id = hits.id(c);
TermFreqVector TermFreqVector = IndexReader.GetTermFreqVector(Id, "content");
// etc.
(As a side note: the Hits class is deprecated; you probably want to use something like HitCollector or a different search overload instead.)