The code speaks better:
model = new QSqlRelationalTableModel();
model->setEditStrategy(QSqlRelationalTableModel::OnRowChange);
model->setTable("members");
model->setRelation(Member_TeamID, QSqlRelation("teams", "ID", "Name"));
model->setSort(Member_Name, Qt::AscendingOrder);
model->select();
mapper = new QDataWidgetMapper();
mapper->setSubmitPolicy(QDataWidgetMapper::ManualSubmit);
mapper->setModel(model);
mapper->setItemDelegate(new QSqlRelationalDelegate());
void member_detail::deleteMember()
{
int row = mapper->currentIndex();
bool x= model->removeRow(row);
mapper->submit();
mapper->setCurrentIndex(qMin(row, model->rowCount() - 1));
QMessageBox::critical(0,"W",QString::number(x)); // This Echos false
}
Simply When I call deleteMember , The record is not removed from the model but it's removed from the database (I Check against it using Navicat)
Specs: Qt 5.0.2 Linux 64-bit , g++ as compiler
From QSqlTableModel::removeRows docs:
Emits the beforeDelete() signal before a row is deleted. When the edit
strategy is OnManualSubmit signal emission is delayed until
submitAll() is called.
So check the edit strategy you're using and try to call model->submitAll() after changes.
Related
I am trying to make my life easier with Live Templates in intelliJ
I need to increment some param by 1 every-time I use the snippet.
So I tried to develop some groovyScript, and I am close, but my groovy capabilities keeps me back. the number is not incremented by 1, but incremented by 57 for some reason... (UTF-8?)
here is the script:
File file = new File("out.txt");
int code = Integer.parseInt(file.getText('UTF-8'));
code=code+1;
try{
if(_1){
code = Integer.parseInt(_1);
}
} catch(Exception e){}
file.text = code.toString();
return code
So whenever there's param passed to this script (with _1) the initial value is set, and otherwise simply incremented.
this script needs to be passed to the live template param with:
groovyScript("File file = new File(\"out.txt\");int code = Integer.parseInt(file.getText(\'UTF-8\'));code=code+1;String propName = \'_1\';if(this.hasProperty(propName) && this.\"$propName\"){code = Integer.parseInt(_1);};file.text =code.toString();return code", "<optional initial value>")
How can I make two independent action inside one function in Elm? Is there any pattern or explicit function?
Generally speaking I'm not sure how to implement ajax data loading inside Elm Architecture.
For example I'd like to make Http.get and return modified argument function like this
fetchCustomers model =
Http.get parseCustomers "/customers" `andThen` setCustomers
{ model | fetchingCustomers <- True }
TL;DR
You do so by returning both in a tuple. Then you split the signal from your update in foldp, put the model part in the view function and put the tasks in a port to execute. This is alluded to in the Architecture post at the end under One Last Pattern.
Longer answer
Since you link to the Elm Architecture, let me link to that too, but in particular the last part: One Last Pattern.
What you want to do here is part of the "update" of your program, where you not only update your model but also do something else on the side. Therefore you do not just return the new model, but also the extra thing you want to do (in this case an Http request):
fetchCustomers model =
( { model | fetchingCustomers <- True }
, Http.get parseCustomers "/customers" `andThen` setCustomers
)
Instead of using StartApp like the architecture page does, you can paste in the start function from the package. Now you have access to the mailbox where the actions are coming from, so you can pass it to your update so you can send your Http results there too. And you can split the tuple that you're returning from the update function to actually execute the tasks:
start app =
let
actions =
Signal.mailbox Nothing
address =
Signal.forwardTo actions.address Just
model =
Signal.foldp
(\(Just action) (model,_) -> app.update actions action model)
-- ignore task: ^ ^^^ ^^^^^^^^:add mailbox
app.model
actions.signal
in
(Signal.map (fst >> app.view address) model, Signal.map snd model)
-- ^ ^^^^^^^ :split model: ^^^^^^^^^^^^^^^^^^^^^^^
fetchCustomers actions model =
( { model | fetchingCustomers <- True }
, Http.get parseCustomers "/customers"
`andThen` (SetCustomers >> Signal.send actions.address)
-- use mailbox to send Http results as an input action again
)
-- larger update function you probably have
update actions action model = case action of
-- ...
SetCustomers cust -> setCustomers cust
-- ...
-- fetchCustomers actions model
(output, tasks) = start { model: model, view: view, update: update }
-- task execution:
port httpGets = tasks
-- output your view
main = output
You can find more examples of doing Http on the website under "tasks".
The project I am working on uses GIT in a weird way. Essentially it writes and pushes one commit at a time. The project could result in one branch having hundreds of thousands of commits. When testing we found that after only about 500 commits the performance of the GIT push started to degrade. Upon further investigation using a process monitor we believe that the degradation is due to a walk of the entire tree for the branch being pushed. Since we are only ever pushing one new commit at any given time is there any way to optimize this?
Alternatively is there a way to limit the commit history to be something like 50 commits to reduce this overhead?
I am using LibGit2Sharp Version 0.20.1.0
Update 1
To test I wrote the following code:
void Main()
{
string remotePath = #"E:\GIT Test\Remote";
string localPath = #"E:\GIT Test\Local";
string localFilePath = Path.Combine(localPath, "TestFile.txt");
Repository.Init(remotePath, true);
Repository.Clone(remotePath, localPath);
Repository repo = new Repository(localPath);
for(int i = 0; i < 2000; i++)
{
File.WriteAllText(localFilePath, RandomString((i % 2 + 1) * 10));
repo.Stage(localFilePath);
Commit commit = repo.Commit(
string.Format("Commit number: {0}", i),
new Signature("TestAuthor", "TestEmail#Test.com", System.DateTimeOffset.Now),
new Signature("TestAuthor", "TestEmail#Test.com", System.DateTimeOffset.Now));
Stopwatch pushWatch = Stopwatch.StartNew();
Remote defaultRemote = repo.Network.Remotes["origin"];
repo.Network.Push(defaultRemote, "refs/heads/master:refs/heads/master");
pushWatch.Stop();
Trace.WriteLine(string.Format("Push {0} took {1}ms", i, pushWatch.ElapsedMilliseconds));
}
}
private const string Characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
private static readonly Random Random = new Random();
/// <summary>
/// Get a Random string of the specified length
/// </summary>
public static string RandomString(int size)
{
char[] buffer = new char[size];
for (int i = 0; i < size; i++)
{
buffer[i] = Characters[Random.Next(Characters.Length)];
}
return new string(buffer);
}
And ran the process monitor found here:
http://technet.microsoft.com/en-us/sysinternals/bb896645.aspx
The time for each push ended up being generally low with large spikes in time increasing both in frequency and in latency. When looking at the output from the process monitor I believe these spikes lined up with a long stretch where objects in the .git\objects folder were being accessed. For some reason occasionally on a pull there are large reads of the objects which when looked at closer appears to be a walk through the commits and objects.
The above flow is a condensed version of the actual flow we were actually doing in the project. In our actual flow we would first create a new branch "Temp" from "Master", make a commit to "Temp", push "Temp", merge "Temp" with "Master" then push "Master". When we timed each part of that flow we found the push was by far the longest running operation and it was increasing in elapsed time as the commits piled up on "Master".
Update 2
I recently updated to use libgit2sharp version 0.20.1.0 and this problem still exists. Does anyone know why this occurs?
Update 3
We change some of our code to create the temporary branch off of the first commit ever on the "Master" branch to reduce the commit tree traversal overhead but found it still exists. Below is an example that should be easy to compile and run. It shows the tree traversal happens when you create a new branch regardless of the commit position. To see the tree traversal I used the process monitor tool above and command line GIT Bash to examine what each object it opened was. Does anyone know why this happens? Is it expected behavior or am I just doing something wrong? It appears to be the push that causes the issue.
void Main()
{
string remotePath = #"E:\GIT Test\Remote";
string localPath = #"E:\GIT Test\Local";
string localFilePath = Path.Combine(localPath, "TestFile.txt");
Repository.Init(remotePath, true);
Repository.Clone(remotePath, localPath);
// Setup Initial Commit
string newBranch;
using (Repository repo = new Repository(localPath))
{
CommitRandomFile(repo, 0, localFilePath, "master");
newBranch = CreateNewBranch(repo, "master");
repo.Checkout(newBranch);
}
// Commit 1000 times to the new branch
for(int i = 1; i < 1001; i++)
{
using(Repository repo = new Repository(localPath))
{
CommitRandomFile(repo, i, localFilePath, newBranch);
}
}
// Create a single new branch from the first commit ever
// For some reason seems to walk the entire commit tree
using(Repository repo = new Repository(localPath))
{
CreateNewBranch(repo, "master");
}
}
private const string Characters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
private static readonly Random Random = new Random();
/// <summary>
/// Generate and commit a random file to the specified branch
/// </summary>
public static void CommitRandomFile(Repository repo, int seed, string rootPath, string branch)
{
File.WriteAllText(rootPath, RandomString((seed % 2 + 1) * 10));
repo.Stage(rootPath);
Commit commit = repo.Commit(
string.Format("Commit: {0}", seed),
new Signature("TestAuthor", "TestEmail#Test.com", System.DateTimeOffset.Now),
new Signature("TestAuthor", "TestEmail#Test.com", System.DateTimeOffset.Now));
Stopwatch pushWatch = Stopwatch.StartNew();
repo.Network.Push(repo.Network.Remotes["origin"], "refs/heads/" + branch + ":refs/heads/" + branch);
pushWatch.Stop();
Trace.WriteLine(string.Format("Push {0} took {1}ms", seed, pushWatch.ElapsedMilliseconds));
}
/// <summary>
/// Create a new branch from the specified source
/// </summary>
public static string CreateNewBranch(Repository repo, string sourceBranch)
{
Branch source = repo.Branches[sourceBranch];
string newBranch = Guid.NewGuid().ToString();
repo.Branches.Add(newBranch, source.Tip);
Stopwatch pushNewBranchWatch = Stopwatch.StartNew();
repo.Network.Push(repo.Network.Remotes["origin"], "refs/heads/" + newBranch + ":refs/heads/" + newBranch);
pushNewBranchWatch.Stop();
Trace.WriteLine(string.Format("Push of new branch {0} took {1}ms", newBranch, pushNewBranchWatch.ElapsedMilliseconds));
return newBranch;
}
/// <summary>
/// Get a Random string of the specified length
/// </summary>
public static string RandomString(int size)
{
char[] buffer = new char[size];
for (int i = 0; i < size; i++)
{
buffer[i] = Characters[Random.Next(Characters.Length)];
}
return new string(buffer);
}
I have same code on two servers.
I have job for adding batch job to the queue
static void Job_ScheduleBatch2(Args _args)
{
BatchHeader batHeader;
BatchInfo batInfo;
RunBaseBatch rbbTask;
str sParmCaption = "My Demonstration (b351) 2014-22-09T04:09";
SysRecurrenceData sysRecurrenceData = SysRecurrence::defaultRecurrence();
;
sysRecurrenceData = SysRecurrence::setRecurrenceStartDateTime(sysRecurrenceData, DateTimeUtil::utcNow());
sysRecurrenceData = SysRecurrence::setRecurrenceUnit(sysRecurrenceData, SysRecurrenceUnit::Minute,1);
rbbTask = new Batch4DemoClass();
batInfo = rbbTask .batchInfo();
batInfo .parmCaption(sParmCaption);
batInfo .parmGroupId(""); // The "Empty batch group".
batHeader = BatchHeader ::construct();
batHeader .addTask(rbbTask);
batHeader.parmRecurrenceData(sysRecurrenceData);
//batHeader.parmAlerts(NoYes::Yes,NoYes::Yes,NoYes::Yes,NoYes::Yes,NoYes::Yes);
batHeader.addUserAlerts(curUserId(),NoYes::No,NoYes::No,NoYes::No,NoYes::Yes,NoYes::No);
batHeader .save();
info(strFmt("'%1' batch has been scheduled.", sParmCaption));
}
and I have a batch job
class Batch4DemoClass extends RunBaseBatch
{
int methodVariable1;
int metodVariable2;
#define.CurrentVersion(1)
#localmacro.CurrentList
methodVariable1,
metodVariable2
endmacro
}
public container pack()
{
return [#CurrentVersion,#CurrentList];
}
public void run()
{
// The purpose of your job.
info(strFmt("epeating batch job Hello from Batch4DemoClass .run at %1"
,DateTimeUtil ::toStr(
DateTimeUtil ::utcNow())
));
}
public boolean unpack(container _packedClass)
{
Version version = RunBase::getVersion(_packedClass);
switch (version)
{
case #CurrentVersion:
[version,#CurrentList] = _packedClass;
break;
default:
return false;
}
return true;
}
On one server it do runs and in batch history I can see it is saving messages to the batch log and on the other server it does nothing. One server is R2 (running) and R3 (not running).
Both codes are translated to CIL. Both servers are Batch server. I can see the batch jobs in USMF/System administration/Area page inquries. Only difference I can find is that jobs on R2 has filled AOS instance name in genereal and in R3 it is empty. In R2 I can see that info messages in log and batch history but there is nothing in R3.
Any idea how to make batch jobs running?
See how to Configure an AOS instance as a batch server.
There are 3 preconditions:
Marked as a batch server
Time interval set correctly
Batch group set correctly
Update:
Deleting the user of a batch job may make the batch job never complete. Once the execute queue has filled, no further progress will happen.
Deleting the offending batch jobs is problematic, as only the owner can do so! Then consider changing BatchJob.aosValidateDelete.
Yes, worth a try to clear the tables, also if you could provide a screenshot of the already running batchjobs and their status, that might be of help further.
I reported a bug in prestashop community at http://forge.prestashop.com/browse/PSCFI-6967 yesterday. Do anybody suggest me any fix for it?
Well since you haven't posted minor version, I've took the first and the last minor versions and diffed them (Customer.php class to be precise).
This is 1.4.0.1:
static public function customerExists($email, $return_id = false)
{
if (!Validate::isEmail($email))
die (Tools::displayError());
$result = Db::getInstance()->getRow('
SELECT `id_customer`
FROM `'._DB_PREFIX_.'customer`
WHERE `email` = \''.pSQL($email).'\'');
if ($return_id)
return intval($result['id_customer']);
else
return isset($result['id_customer']);
}
And this is 1.4.8.3:
public static function customerExists($email, $return_id = false, $ignoreGuest = true)
{
if (!Validate::isEmail($email))
die (Tools::displayError());
$result = Db::getInstance()->getRow('
SELECT `id_customer`
FROM `'._DB_PREFIX_.'customer`
WHERE `email` = \''.pSQL($email).'\''
.($ignoreGuest ? 'AND `is_guest` = 0' : ''));
if ($return_id)
return (int)($result['id_customer']);
else
return isset($result['id_customer']);
}
The thing is, that you are using something in between these two and closer to the lower one.
As you can see the later one has another optional parameter $ignoreGuest which defaults to true. Hence every validation is bypassed.
You can do either one of these two things:
Upgrade to the latest version of 1.4 (http://code.google.com/p/prestashop/downloads/detail?name=prestashop_1.4.8.3.zip&can=2&q=) if any of your components are not compatible with 1.5. If they are - go all the way to the latest.
If on the other hand you just need a quick and dirty fix: change the function in Customer class to the second one in this answer.