March 2001 - Zope - Zope lists

RE: [Zope] Zope app to traverse *external* file system
by Farrell, Troy 21 Mar '01

21 Mar '01

Please don't post HTML to the list. Look at JFarr's LocalFS product. http://www.zope.org/Members/jfarr/Products/LocalFS You can also access the Local file system with Zope Products and External Methods. Troy -----Original Message----- From: Kulp, David [mailto:David_Kulp@affymetrix.com] Sent: Wednesday, March 21, 2001 3:50 PM To: 'zope(a)zope.org' Subject: [Zope] Zope app to traverse *external* file system I am trying to decide whether I should take the plunge with Zope. I will be writing a web app to traverse a large directory tree and provide fews of the files in this tree. This sounds, at first, ideal for zope, since I could create scripts or DHTML methods at the top of the tree that I can use to generally and systemically allow users to traverse and view the information -- perhaps even using the zope tree view. Alas, this directory tree is external to zope in a real file system. It is not possible to add these files as objects into zope. Everything I've read so far deals with objects in zope. Is there a straightforward way to use zope to address this while maintaining most of the nice zope features? Although not the app I'm actually writing, the idea is similar to, for example, providing a view of a /home file system. Special behavior for the default view might exist for /home/<user>/. Perhaps a directory of /home/<user>/src would be recognized as a source code tree for a particular user and special behavior within that tree would exist -- e.g. comparing a file with a CVS repository. Different files with extensions or mime-types or special names are displayed differently. This sounds a lot like a classic zope app to me except the data isn't in zope. The files are live real files in the file system and are accessed, modified, etc. outside of the web app. Any recommendation would be much appreciated! Is there a nice zope pattern for this? If not, can you recommend alternatives? Much obliged, David Kulp

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Zope app to traverse *external* file system
by Kulp, David 21 Mar '01

21 Mar '01

I am trying to decide whether I should take the plunge with Zope. I will be writing a web app to traverse a large directory tree and provide fews of the files in this tree. This sounds, at first, ideal for zope, since I could create scripts or DHTML methods at the top of the tree that I can use to generally and systemically allow users to traverse and view the information -- perhaps even using the zope tree view. Alas, this directory tree is external to zope in a real file system. It is not possible to add these files as objects into zope. Everything I've read so far deals with objects in zope. Is there a straightforward way to use zope to address this while maintaining most of the nice zope features? Although not the app I'm actually writing, the idea is similar to, for example, providing a view of a /home file system. Special behavior for the default view might exist for /home/<user>/. Perhaps a directory of /home/<user>/src would be recognized as a source code tree for a particular user and special behavior within that tree would exist -- e.g. comparing a file with a CVS repository. Different files with extensions or mime-types or special names are displayed differently. This sounds a lot like a classic zope app to me except the data isn't in zope. The files are live real files in the file system and are accessed, modified, etc. outside of the web app. Any recommendation would be much appreciated! Is there a nice zope pattern for this? If not, can you recommend alternatives? Much obliged, David Kulp

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MYSql adapter advice
by Chris Muldrow 21 Mar '01

21 Mar '01

We're using the regular Zope ODBC Adapter to connect to a MySQL db on Win 2000. inotice, though, that you can't "browse" the db structure in the odbc connection. Is another DB adapter a better bet for MySQL? (We're already using odbc for an Access database, so it's preferred to stick with one, but if a MySQL adapter is better, we can make the change) Thanks -- Chris

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Re: [Zope] DTML: let a variable be the html_quote of another
by Dieter Maurer 21 Mar '01

21 Mar '01

Danny William Adair writes: > How can I achieve this? > > <dtml-let yummy="hardtoswallow html_quote"> > > doesn't work, neither does > > <dtml-let yummy="_.html_quote(hardtoswallow)"> The mail archives are your friend .... You will find there: * how to use "html_quote" from PythonScript (-> message from Evan) * how to make a DTML method as a function that "html_quotes" (or "url_quotes" or whatever "dtml-var" can do) (-> message from me - was for "url_quote") Dieter

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Re: [Zope] dtml-with string
by Dieter Maurer 21 Mar '01

21 Mar '01

nuno writes: > i want to do a <dtml-with "PARENTS[0].location.place"> > > the problem is that instead of writing PARENTS[0].location.place > i want to use a variable that is a built string: > > <dtml-call "REQUEST.set('location', 'PARENTS[0].location.' + dir)"> You already got an answer for your specific problem.... A general answer to problems like yours is "restrictedTraverse".... Dieter

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Re: [Zope] change document permissions
by Dieter Maurer 21 Mar '01

21 Mar '01

Peter Breuer writes: > i want to generate a document and change permissions for that > document without using the manage-screen. > Generating the document worked fine - it copies a default document to > a new generated document-object: > <dtml-call > "manage_addProduct['OFSP'].manage_addDTMLDocument('pre_article','Preliminary > article',default_pre_article)"> > > now an existing role (f. e. Owner) should be able to get 'Change DTMS > Documents' right for that document-object. > I assume > <dtml-call "pre_article.manage_permission()"> I can not tell you the details.... But I would look at the (DTML) source of the management interface that changes permissions ... and after (say) ten minutes, I would knew how to do it.... Dieter

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RE: [Zope] Problem with <input type=hidden value="<dtml-var filen amex>" name =filenamex>
by servel yannick 21 Mar '01

21 Mar '01

Hello, thanks for your answer. It didn't seem to work Peraphs this code (used inside an external python method)is not valid: while j < Col2: s = s + "<td>" s = s + '<input type="file" name="filename%s" VALUE="">' s = s % str(((i*Col2)+j+1)) #gives the right id to each filename variable s = s + "</td>" j = j + 1 Many thanks for your effort, Yannick -----Original Message----- From: Andy McKay [mailto:andym@ActiveState.com] Sent: 21 March 2001 20:26 To: servel yannick; zope(a)zope.org Subject: Re: [Zope] Problem with <input type=hidden value="<dtml-var filenamex>" name =filenamex> You cannot nest dtml tags inside another dtml tag, <dtml-var filename<dtml-var sequence-number>> is invalid. Untested: <dtml-var "_[filename+_['sequence-item']]"> Is probably what you want. -- Andy McKay.

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Re: [Zope] zope-2.2.5: Aiieee! 10438 exited with error code: 11
by Dieter Maurer 21 Mar '01

21 Mar '01

bak (kedai) writes: > i got this error quite frequently. any ideas on what it is (H/W, RAM, etc)? > > Aiieee! 10438 exited with error code: 11 This is the sign of death by a SEGMENTATION VIOLATION (signal 11). You may have got a "core" file (if your Linux is configured sensefully, SuSE Linux is not by default (e.g.)). Then an analysis of the core may show you where the SIGSEGV happened. Dieter

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Problem with <input type=hidden value="<dtml-var filenamex>" name =filenamex>
by servel yannick 21 Mar '01

21 Mar '01

Hi, all I have a problem, it seems that the syntax: <input type=hidden value='<dtml-var filename<dtml-var sequence-number>>' name='<dtml-var sequence-number>'> doesn't work. This is the file CreateMenu.htnl CreateMenu.html <form action="SaveMenu.html" method="post"> <input type=hidden value='<dtml-var nbMenu>' name=nbMenu> <input type=hidden value='<dtml-var nbCol>' name=nbCol> <dtml-var "CreateTypeMenu(nbMenu=nbMenu, nbCol=nbCol, REQUEST=REQUEST)"> <dtml-var "CreateBegin(REQUEST=REQUEST)"> <tr><td><input type=submit value="ok2"></td></tr> </form> This is the "CreateTypeMenu" external python method: def CreateTypeMenu(self, nbMenu=None, nbCol=None, REQUEST=None): s="" nbMenu= int(nbMenu) nbCol = int(nbCol) self.nbTypeMenu = nbMenu self.Col = nbCol return self.Col And the "CreateBegin" external python method: def CreateBegin(self, REQUEST=None): Col2 = self.Col Num = self.nbTypeMenu Rows = ((Num) / (self.Col)) Cols = ((Num) % (self.Col)) s = "" i = 0 s = s + "<center><table border = 0>" while i < Rows: s = s + "<tr>" j = 0 if i == 0: s = s + "<td rowspan = %s>" if Cols == 0: s=s % (Rows) else: s=s % (Rows+1) s = s + "com" s = s + "</td>" while j < Col2: s = s + "<td>" s = s + '<input type="file" name="filename%s" VALUE="">' s = s % str(((i*Col2)+j+1)) s = s + "</td>" j = j + 1 if i == 0: s = s + "<td rowspan = %s>" if Cols == 0: s=s % (Rows) else: s=s % (Rows+1) s = s + "com" s = s + "</td>" s = s +"</tr>" i = i +1 i = 0 if Cols <> 0: s = s + "<tr><td> </td>" while i < Cols: s = s + "<td>" s = s + '<input type="file" name="filename%s" VALUE="">' s = s % ((Rows*Col2)+i+1) s = s +"</td>" i = i + 1 s = s +"</tr>" s = s s = s + "</table></center>" return s Then the user is returned the SaveMenu.html DTML document: <dtml-in "_.range(nbTypeMenu)"> <input type=hidden value='<dtml-var filename<dtml-var sequence-number>>' name='<dtml-var sequence-number>'> </dtml-in> <dtml-var "RAS(REQUEST=REQUEST)"> The problem is it seems that the statement <input type=hidden value='<dtml-var filename<dtml-var sequence-number>>' name='<dtml-var sequence-number>'> is illegal. Is there any alternative to this statement. Many thanks Yannick

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MySQL login
by ghaley＠mail.venaca.com 21 Mar '01

21 Mar '01

hi, someone wrote earlier asking if this can be done. yes, but only to a certain extent. you still have to use the user database that is part of zope, which requires 4 fields (no more, no less). once your user has been authenticated via that, you can pass the data to your mysql database to do any other stuff you are thinking of doing, logging, data storage, etc. one benefit is that your user data can be stored outside of the data.fs file, and hence keep it fairly lean. steps you will need to take: download and install ZMySQLda and the MySQLdb.py packages. you might need to hunt around for the latter, as the link from andy dustman's zope users page was inactive when i last looked for it. plan to spend quite a chunk of time to get this done. (of course, this also presupposes that you have already downloaded and installed MySQL. if not, i highly recommend using the source files and compiling them yourself. i have had mixed luck with installing the binaries. some folks may have had better luck with these. there has been a few scattered messages on this list about installing ZMySQLda -- check the archives for these. i received a very helpful response over the weekend on an aspect of doing this. hope this helps. good luck. ciao! greg. DBA/web programmer Venaca, LLC

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