Thread View: borland.public.jbuilder.database
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Started by Nicolas GASNIER
Mon, 29 Jan 2007 10:24
Dataset.post and row corruption problem
Author: Nicolas GASNIER
Date: Mon, 29 Jan 2007 10:24
Date: Mon, 29 Jan 2007 10:24
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1886 bytes
1886 bytes
Hi, I have a problem with a QueryDataSet. The dataset is a detail dataset of another one with a masterlink. I am trying to create a new row programmatically with DataSet.insertRow(), then a bunch of set and finally DataSet.post(). Things are ok until I do the post() : at that time, the rowValues are "corrupted" so that my posted row looks like a copy of the row just before it. There is something that change my row values, but what ? Note that the QueryDataSet is bound to a JdbTable at that time, and there is two EditAdapter on it : one that change edit date time, and another that set the masterlink id column to the right value on row adding. These edit adapters do nothing else, so I don't think they may be responsible of this data corruption. Any idea of what is going on ? I suspect a masterlink subtility or bug (sometimes it gets difficult to get the right behaviour with it), but I don't know how to correct this. Regards. Nicolas GASNIER.
Re: Dataset.post and row corruption problem
Author: John Moore (TeamB)
Date: Tue, 30 Jan 2007 00:24
Date: Tue, 30 Jan 2007 00:24
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Nicolas, I know from the back-end Querydataset end, I have never seen a post() cause what you are describing.. My first guess is that it is related to the "front-end" issues with JdbTable.. and your EditAdapters.. You will get better help on that by posting your question in the dbswing section.. (I never use the GUI tools, strictly server back-end stuff) John.. Nicolas GASNIER wrote: > Hi, > > I have a problem with a QueryDataSet. The dataset is a detail dataset of > another one with a masterlink. I am trying to create a new row > programmatically with DataSet.insertRow(), then a bunch of set and finally > DataSet.post(). Things are ok until I do the post() : at that time, the > rowValues are "corrupted" so that my posted row looks like a copy of the row > just before it. There is something that change my row values, but what ? > > Note that the QueryDataSet is bound to a JdbTable at that time, and there is > two EditAdapter on it : one that change edit date time, and another that set > the masterlink id column to the right value on row adding. These edit > adapters do nothing else, so I don't think they may be responsible of this > data corruption. > > Any idea of what is going on ? I suspect a masterlink subtility or bug > (sometimes it gets difficult to get the right behaviour with it), but I > don't know how to correct this. > > Regards. > > Nicolas GASNIER. > > -- ============================================= TeamB are volunteer helpers. Please DO NOT REPLY VIA EMAIL! Post all questions and replies to this newsgroup ONLY For papers on DataExpress, Applets, JSP, and Web Development go to: http://www.microps.com/mps/paperFAQ.html ====================================================
Re: Dataset.post and row corruption problem
Author: Nicolas GASNIER
Date: Tue, 30 Jan 2007 16:07
Date: Tue, 30 Jan 2007 16:07
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Thanks for your answer. After a lot of search, I finally found out it was an EditAdapter that was wrongly witten. For the "adding(DataSet dataSet, ReadWriteRow row)" event, I did write the values on the DataSet. I changed the code to set values in the ReadWriteRow, and the problem was solved. This code was written monthes ago, and was working properly until some changes in the table structure. I don't know why it worked before, but now I have learned the lesson... Nicolas GASNIER "John Moore (TeamB)" <jbm@microps.com> a οΏ½crit dans le message de news: 45be9009@newsgroups.borland.com... > Nicolas, > > I know from the back-end Querydataset end, I have never seen a post() > cause what you are describing.. > > My first guess is that it is related to the "front-end" issues with > JdbTable.. and your EditAdapters.. > > You will get better help on that by posting your question in the dbswing > section.. (I never use the GUI tools, strictly server back-end stuff) > > > John.. > > Nicolas GASNIER wrote: >> Hi, >> >> I have a problem with a QueryDataSet. The dataset is a detail dataset of >> another one with a masterlink. I am trying to create a new row >> programmatically with DataSet.insertRow(), then a bunch of set and >> finally DataSet.post(). Things are ok until I do the post() : at that >> time, the rowValues are "corrupted" so that my posted row looks like a >> copy of the row just before it. There is something that change my row >> values, but what ? >> >> Note that the QueryDataSet is bound to a JdbTable at that time, and there >> is two EditAdapter on it : one that change edit date time, and another >> that set the masterlink id column to the right value on row adding. These >> edit adapters do nothing else, so I don't think they may be responsible >> of this data corruption. >> >> Any idea of what is going on ? I suspect a masterlink subtility or bug >> (sometimes it gets difficult to get the right behaviour with it), but I >> don't know how to correct this. >> >> Regards. >> >> Nicolas GASNIER. > > > -- > ============================================= > TeamB are volunteer helpers. Please DO NOT REPLY VIA EMAIL! > Post all questions and replies to this newsgroup ONLY > For papers on DataExpress, Applets, JSP, and Web Development go to: > http://www.microps.com/mps/paperFAQ.html > ====================================================
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