docjones
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Posts posted by docjones
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Hola
Yo lo estoy utilizando desde sus inicios, y también compré la licencia pro
En realidad solo lo he utilizado en un par proyectos serios, y en algunas pequeñas cosas, pero espero utilizarlo en algunos proyectos más
En realidad, creo que en España somos muy pocos lo que seguimos utilizando delphi solo unos pocos raritos como yo y mucho menos unigui, Me consta que en latinoamérica / portugal tiene algo más de aceptación y uso.
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Me pregunto cuantos españoles estamos utilizando unigui en nuestros proyectos y cuantos habéis comprado una licencia para un uso profesional o cuantos pensáis comprarla
¿Alguien tiene en producción algún aplicativo unigui ? ¿ usuarios concurrentes ?, ¿ experiencias?
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Many Thanks Stiaan for sharing your experience and your advices. i see NBL or NBL + ARR is a very good solution.
To avoid database bottleneck, cluster database , and/or database midleware tier like mormot it's a must have.
Report server like reporting services is a good solution
may be if intensive reporting requiered, balancing some server's reports will be necesary.
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Thanks Farshad
Seems that load balacing / scalability is the most complicated theme
I found several articles about load balancing using IIS + tomcat, http://blogs.mulesoft.com/load-balancing-tomcat-7-using-iis-7-5/ , but this don't seems very resource optimal. In example, if you need 10.000 instances, and 250sessions x process , you need 40 tomcat instances. Or Perhaps best method is using ARR
how are you planning add load balacing to unigui? , using any unigui software proxie/redirector or through IIS?
For database, i'm thinking in a postgresql / mysql cluster, and mormot as database tier.
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I'm thinking if it's possible have a unigui application (typical database application, inserts, querys, google maps, etc) with many users at time 50.000.
what do you think ? , what kind of server or farm servers (CPD) will be necesary? . what about unigui scalability? any experiencies?
it will be necesary using a midleware like datasnap ?, or mormot ?
unigui is enough mature to make a project of this nature? , or better i forget....
all comments will be welcome.
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you can not call to showreport().
Export your report to pdf or html, and load it in uniurlframe.
There are several examples in the forum.
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don't use a tcpserver in unigui , becouse each user that open new web session, need tcp a server diferent port.
with tcpclient you cant send and recive data.
and yes, tcpserver.onexecute, is multithreaded, you can not access unigui components in the execute method, or in a thread
when you recive data, add data to temporaly buffer, and check and read the buffer content it in unitimer.
Procedure TmainForm.Oncreate(....) Begin Buffer:=TmemoryStream.create; End; procedure TMainForm.idServerExecute(AContext: TIdContext); var i: integer; begin with AContext.Connection.Socket do try ReadStream(buffer,-1); except end; end; Procedure on unitimer(.....) Begin Buffer.Position:=0; i:=buffer.readint; buffer.clear; UniLabel2.Caption := inttostr(i); End;
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you must think, that each unigui session, is like a one vcl running application.
Each unigui session , ( main module or your unigui main form ), can have her custom tcp client, and you can comunicate it like a vcl application, with your custom server.
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I want share the project sample
The project show how do a basic shopping cart, and do payments with paypal (direct credit cards payment only allowed in US).
Paypal, and credit card payment integrated (REST API) , only basic functions, please do not ask me about other paypal functionalities, there are a lot of information in paypal home page.
The same unigui application catch the paypal response and update in database the status payment of the order (transactions table).
Proyect Requierements
- Paypal account / sandbox.
- Firebird 2.5 Server
- ZeosLib (http://ZeosLib.Sourceforge.net)
- Rest - API Libraries (https://github.com/fabriciocolombo/delphi-rest-client-api)
- OpenSSL Dlls (libeay32.dll and ssleay32.dll)
- XE2 and UP.
Open database (\files\pub.fdb), open table 'config' and change the fields with your own config
PAYPAL_CLIENTID
PAYPAL_SECRET
DOMAIN_NAME
Can test on.
can pay using next paypal sandbox account
password chocolate
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Finally paypal credit card payment is working. But only work with PayPal US acount.
Anobody know another credit card payment platform to working in EU ?. Any recomendation?
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Hi
I'm doing a demo project that support paypal payment
now only pay with valid paypal account allowed. but i'm figthing with credit card payment. (paypal api have too many options).
perhaps it's not the best arquitecture, but the same unigui application is used to catch paypal response, and confirm the payment . (As example its perfect)
The idea of this project is using it as an example and a base for future projects, perhaps will share the code.
sorry, server no 24hours active, but you can test it on
To test, first register with valid mail, activate your account, login and and test payment using the next paypal sandbox account
testpaysandbox@gmail.com
password chocolate.
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you must restart session to apply theme becouse theme must be apply when session start
Save theme in cookie, and when user start session, get user cookie and set the theme.
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http://stackoverflow.com/questions/27093429/paypal-with-delphi-using-rest-api-return-payment-empy
http://stackoverflow.com/questions/26395669/using-paypal-rest-client-with-delphi-xe2/26436321#26436321
You can develop your own REST wrapper. or use TMS paypal component.
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Its not unigui problem.
If your application is 64bits, you need 64bit version of midas.dll, and the same with the others external dll's.
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your code wokring on xe2 fine, tested and no error.
i think your are using a unigui older version, ¿ which version unigui are you using ?,
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Custom map, containing dinamic objects loaded from database, that can change their image state / color.
objects are connected to an OPC server and diferent protols (modbus, hostlink, etc) , and unigui paint it and change state like a scada.
user: demo
password: demo
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very nice,
unigui is amazing !
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Los limites los pone la máquina y los recursos que utilice tu aplicación.
Además has de tener en cuenta que hay un límite de threads por proceso, debido a que el sistema reserva 1mb de stack por cada thread, en win32 creo que el límite está en 2000 threads, .. en win64 desaparece este límite ya que se puede direccionar mas espacio en memoria..
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i'm using gnugettext
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HTMLFRAME CODE. <!DOCTYPE html> <html> <head> <title>Leaflet unigui example</title> <style> body { padding: 0; margin: 0; } html, body, #map { height: 100%; } </style> </head> <body> <div id="map"></div> </body> </html>HTMLFRAME AfterScript { // create a map in the "map" div, set the view to a given place and zoom var map = L.map('map').setView([51.505, -0.09], 13); L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', { attribution: '© <a href="http://osm.org/copyright">OpenStreetMap</a> contributors' }).addTo(map); }Hi
I'm trying using leaflet map with unigui, but it seems that do not work fine.
leaflet custom .css and custom file .js added to servermodule
The map loaded ok, but show cutted
htmlframe afterscript and HTML added to show map
what i'm doing bad?
test case added
Unigui 0.99.xxx pro
codegear xe2
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//firebird event. when insert data, start unitimer and refresh data. procedure TMainForm.IBEvents1EventAlert(Sender: TObject; EventName: string; EventCount: Integer; var CancelAlerts: Boolean); begin if EventName='new_data' then begin LocalFlag:=true end; end; procedure TMainForm.UniTimer1Timer(Sender: TObject); begin if LocalFlag then begin LocalFlag:=False; IBQuery1.Close; IBQuery1.Open; end; end;Thanks Farshad, i see... Then to solve this problem, the easy way is using a local flag, testing it in unitimer.
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procedure TMainForm.UniFormCreate(Sender: TObject); begin IBDatabase1.DatabaseName:=UniServerModule.FilesFolderPath+'TEST.FDB'; IBDatabase1.LoginPrompt:=FALSE; IBDatabase1.Params.CLEAR; IBDatabase1.Params.Add('user_name=SYSDBA'); IBDatabase1.Params.Add('password=masterkey'); IBDatabase1.Params.Add('lc_ctype=ISO8859_1'); //CHARSET. IBDatabase1.Open; IBQuery1.open; IBEvents1.Registered:=true; end; procedure TMainForm.btn_insertClick(Sender: TObject); var q:TIBQuery; begin //insert a record, then event new_data fired try q:=TIBQuery.Create(self); q.Database:=IBDatabase1; q.SQL.add('insert into data (name,author,street) values (:name,:author,:street)'); q.ParamByName('name').Value:='record '+FormatDateTime('dd/mm/yy hh:nn:ss:zzzz',now); q.ParamByName('author').Value:='unigui'; q.ParamByName('street').Value:=''; try q.ExecSQL; q.Transaction.CommitRetaining; except on e:exception do begin ShowMessage('Error '+e.Message); end; end; finally q.Free; end; end; //firebird event. when insert data, start unitimer and refresh data. procedure TMainForm.IBEvents1EventAlert(Sender: TObject; EventName: string; EventCount: Integer; var CancelAlerts: Boolean); begin if EventName='new_data' then begin UniTimer1.Enabled:=true; end; end; procedure TMainForm.UniTimer1Timer(Sender: TObject); begin UniTimer1.Enabled:=falsE; //new record inserted, refresh data IBQuery1.Close; IBQuery1.Open; end;Hi
I'm traying refresh query when firebird event is fired. (the firebird event is fired when a record is inserted to table).
when firebird event fired, i call unitimer1.enabled:=true, to refresh query, but an error ocurrs, see attached error.
Unigui pro 0.99.0.1169
ibx components to connect firebird database and manage firebird event. (tested with ibdac and same problem).
firebird 2.5.2 versión.
codegear xe2.
i attach a simple example, press button to insert a record, then firebird event is fired.
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if i understand what do you want to do, you cant not use sendfile.
i think that you can export all reports with diferent names to localcachepath, create one unitabsheet and one unihtmlframe every pdf, and load it each pdf into each unihtmlframe.
Is it posible work barcode scanner?
in General
Posted
Barcode scanner devices generally can work like a usb keyboard, o like a serial com device.
Working barcode scanner as usb keyboard is the simpliest way, reading the codebar is like if your keyboard write the code in the focused control.
it's not necessary develope a keyboard hook, just put a unieditcontrol, focus on him, and read the codebar with the scanner..
or you can do a form that capture the onkeyevent, show this form , and capture the reading keys.