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ORM for Qt

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    victorzhuk
    wrote on 11 May 2013, 22:25 last edited by
    #10

    if you need litle demo I can quick create it for you ;)

    bq. Do you mean it’s slower? or it has same Qt performance?

    library use only qt`s mechanisms, no boost or custom macros...and when I use it performance was the same

    it`s will be great if my lib help anybody. wait for a sec, I post demo

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      victorzhuk
      wrote on 11 May 2013, 23:21 last edited by
      #11

      http://rapidshare.com/files/549905365/EOrmDemo.tar.gz please

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        mbnoimi
        wrote on 11 May 2013, 23:23 last edited by
        #12

        [quote author="victorzhuk" date="1368314480"]http://rapidshare.com/files/549905365/EOrmDemo.tar.gz please[/quote]

        It's not working!!! use another sharing website please (try one.ubuntu.com)
        [quote]
        The download for this file has not been enabled. Only the user who uploaded it, can enable the download option.
        [/quote]

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          victorzhuk
          wrote on 11 May 2013, 23:29 last edited by
          #13

          here it is http://ubuntuone.com/5wimYZQnJJlcQCBo5pDpS6

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            victorzhuk
            wrote on 11 May 2013, 23:36 last edited by
            #14

            For demo success working you should compile EOrm and add .so(.dll) and *.h files to EOrmDemo project (just replace paths in *.pro file)

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              mbnoimi
              wrote on 11 May 2013, 23:50 last edited by
              #15

              [quote author="victorzhuk" date="1368314994"]here it is http://ubuntuone.com/5wimYZQnJJlcQCBo5pDpS6[/quote]

              Thanks, I successfully run the example :) it's quite easy to understand... I think eorm's performance should be as Qt's model.

              Any way, I've to test it in heavy and excessive usage then compare it with the above libraries in addition to Qt standard model, this may take some time because I'm busy these days.

              Do you want to share with me these tests?

              I want to test:

              • eorm
              • QDjango
              • Standard Qt model
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                mbnoimi
                wrote on 11 May 2013, 23:55 last edited by
                #16

                until that date, could you please add some exmpales to your Git repository instead of this quick example?

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                  victorzhuk
                  wrote on 12 May 2013, 00:04 last edited by
                  #17

                  sure :) how can I help you? what tests?

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                    mbnoimi
                    wrote on 12 May 2013, 00:12 last edited by
                    #18

                    [quote author="victorzhuk" date="1368317045"]sure :) how can I help you? what tests?[/quote]

                    I'm planning to apply some complicated queries with millions of records on stable database server (ex. MySQL or Postgresql)

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                      victorzhuk
                      wrote on 12 May 2013, 00:18 last edited by
                      #19

                      lets try :) about examples - I find a time and upload some in git, with find,model,create,delete etc.. hope its help somebody

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                        mbnoimi
                        wrote on 12 May 2013, 00:22 last edited by
                        #20

                        [quote author="victorzhuk" date="1368317891"]lets try :) about examples - I find a time and upload some in git, with find,model,create,delete etc.. hope its help somebody[/quote]

                        Thanks... this will ease comparing process.

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                          mbnoimi
                          wrote on 27 May 2013, 03:55 last edited by
                          #21

                          Guys, I found this library which may works too. I'll add it for performance comparison.
                          https://sourceforge.net/projects/qtpersistence/?source=directory

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                            mbnoimi
                            wrote on 27 May 2013, 04:07 last edited by
                            #22

                            Until now I'm planning to test:

                            • eorm: https://github.com/victorzhuk/eorm
                            • QDjango: https://code.google.com/p/qdjango/
                            • QsT SQL Tools: https://sourceforge.net/projects/qstsqltools/?source=directory
                            • QtPersistence: https://sourceforge.net/projects/qtpersistence/?source=directory
                            • Standard Qt model

                            I'm still looking for others...

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                              Skh1002
                              wrote on 11 Jul 2013, 21:30 last edited by
                              #23

                              Hi mbnoimi,

                              I wonder how your testing is going on. I am facing a similar problem, and I am undecided between ODB, QxOrm, and QDjango. For me, licensing is less of an issue, but performance and features are.

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                                mbnoimi
                                wrote on 11 Jul 2013, 21:51 last edited by
                                #24

                                The Best performance was for QDjango, QxOrm and Standard Qt model. All three techniques gave same result in many cases but QxOrm is the best from features prespactive while QDjango is the best from simplicity and rapid usage.

                                Personally I use QDjango because it fits my needs while I left QxOrm becasue of license issue (actually it's heavy by comparing to QDjango)

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                                  Skh1002
                                  wrote on 11 Jul 2013, 22:16 last edited by
                                  #25

                                  I am leaning towards QDjango as well, but there are still a few questions left, one of which is about relationships. QxOrm supports them, but I guess I have to implement it myself with QDjango. Do you have experience maintaing relationships with QDjango?
                                  Also, I noticed that QDjango uses API deprecated in Qt5 (I had to specifically enable it to build the lib). Does this bother you at all?

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                                    mbnoimi
                                    wrote on 11 Jul 2013, 22:31 last edited by
                                    #26

                                    [quote author="Skh1002" date="1373580970"]I am leaning towards QDjango as well, but there are still a few questions left, one of which is about relationships. QxOrm supports them, but I guess I have to implement it myself with QDjango. Do you have experience maintaing relationships with QDjango? [/quote]
                                    I'm just like you I'm still working on it and I don't know how to connect to relationships with QDjango

                                    bq. Also, I noticed that QDjango uses API deprecated in Qt5 (I had to specifically enable it to build the lib). Does this bother you at all?

                                    Which version you're using? I use 0.4 which works in Qt5

                                    P.S. for more info you can join to "QDjango mailing list":http://groups.google.com/group/qdjango

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                                      Skh1002
                                      wrote on 11 Jul 2013, 22:58 last edited by
                                      #27

                                      I have the same version as you, but in Qt5.1 (with which I compiled it) some of the now deprecated API QDjango uses are removed by default. I don't know in which version of Qt this started. I had to insert something like
                                      @
                                      DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x040800
                                      @
                                      somewhere in qdjango.pri to compile it properly.

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                                        mbnoimi
                                        wrote on 11 Jul 2013, 23:08 last edited by
                                        #28

                                        Me too, but that didn't stops me to use it because it suppose to work for Qt4 and Qt5.

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                                          Skh1002
                                          wrote on 12 Jul 2013, 16:02 last edited by
                                          #29

                                          I have just looked into the test suite bundled with QDjango and there are cases for one-to-many and many-to-many relationships. So, apparently, there is support of such relationships. I will give it a spin to see how convenient it is compared to pure Qt.

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