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Re: [Zope] ZServer dying when parent does?
by michel＠digicool.com 16 Jun '99

16 Jun '99

Pavlos Christoforou <pavlos(a)gaaros.msrc.sunysb.edu> writes: > On Wed, 16 Jun 1999, Daniel M. Drucker wrote: > > > > > If I run ZServer like this: > > > > $ python z2.py -2 -w 23456 & > > > > It works -- until I log out of the shell I started it from. Then it > > terminates too. > > This has nothing to do with Zope. Try: > > nohup python z2.py -2 -w 23456 & > > Pavlos > We do however, have to fix z2.py so it behaves a bit more deamonicly, ie detaches itself from the terminal it was started from (unless you specify a -nodetach flag or whatever) and do some better logger managment. z2 started as a hack by me (zinit) and hacked further (albeit more masterly) by Jim into z2. Someone needs to take over this hack. -Michel > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

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Re: [Zope] help :( ... entire site disappeared
by michel＠digicool.com 16 Jun '99

16 Jun '99

Alexander Staubo <alex(a)mop.no> writes: > In other words, if I want to install 2.0.0a2 and use ZODB3, I have no > alternative but to start from scratch...? > > That sucks. > > I hate to ask this, but isn't this pretty significant? I assume you're > giving priority to this issue, and that we can expect a fix any day now, > right? :-) > We will be providing a conversion script that converts ZODB2 databases to ZODB3 databases with Zope 2.0.0 beta. -Michel

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ZServer dying when parent does?
by Daniel M. Drucker 16 Jun '99

16 Jun '99

If I run ZServer like this: $ python z2.py -2 -w 23456 & It works -- until I log out of the shell I started it from. Then it terminates too. I'm using GNU bash, version 2.01.1(1)-release. Daniel Drucker

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RE: [Zope] help :( ... entire site disappeared
by Alexander Staubo 16 Jun '99

16 Jun '99

In other words, if I want to install 2.0.0a2 and use ZODB3, I have no alternative but to start from scratch...? That sucks. I hate to ask this, but isn't this pretty significant? I assume you're giving priority to this issue, and that we can expect a fix any day now, right? :-) -- Alexander Staubo http://www.mop.no/~alex/ "`Ford, you're turning into a penguin. Stop it.'" --Douglas Adams, _The Hitchhiker's Guide to the Galaxy_ >-----Original Message----- >From: michel(a)digicool.com [mailto:michel@digicool.com] >Sent: 16. juni 1999 22:59 >To: Alexander Staubo >Cc: Zope Mailing List (E-mail) >Subject: Re: [Zope] help :( ... entire site disappeared > > >Alexander Staubo <alex(a)mop.no> writes: > >> Does 2.0 currently support importing .bbe files exported by 1.x? >> > >If you run Zope 2.0 in ZODB2 mode '-2 on the command line' then yes. >Otherwise (ZODB3 mode), not yet. > >-Michel > >_______________________________________________ >Zope maillist - Zope(a)zope.org >http://www.zope.org/mailman/listinfo/zope > >(For developer-specific issues, use the companion list, >zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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Re: [Zope] help :( ... entire site disappeared
by michel＠digicool.com 16 Jun '99

16 Jun '99

Alexander Staubo <alex(a)mop.no> writes: > Does 2.0 currently support importing .bbe files exported by 1.x? > If you run Zope 2.0 in ZODB2 mode '-2 on the command line' then yes. Otherwise (ZODB3 mode), not yet. -Michel

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RE: [Zope] help :( ... entire site disappeared
by Alexander Staubo 16 Jun '99

16 Jun '99

Does 2.0 currently support importing .bbe files exported by 1.x? -- Alexander Staubo http://www.mop.no/~alex/ "`Ford, you're turning into a penguin. Stop it.'" --Douglas Adams, _The Hitchhiker's Guide to the Galaxy_ >-----Original Message----- >From: michel(a)digicool.com [mailto:michel@digicool.com] >Sent: 16. juni 1999 22:37 >To: Daniel M. Drucker >Cc: Zope List >Subject: Re: [Zope] help :( ... entire site disappeared > > >Daniel M. Drucker <dmd(a)3e.org> writes: > >> I reinstalled Zope2, having saved my var directory to another >> location. I shut down zope properly before saving that directory. >> >> Now, when I put the files from the old 'var' into the new 'var', the >> new Zope2 doesn't see them and just gives the default view with >> acl_users, control panel, and standard_*. >> >> Have I lost everything? What happened? Why doesn't it recognize my >> Data.bbb? >> > >If you run Zope in ZODB3 mode, then it will not use Data.bbb, but >rather Data.fs (don't bother renaming your old .bbb to .fs, it won't >work, ZODB3 and ZODB2 use different formats, it will probably >overwrite your old file if you try this). To see your Data.bbb file, >you must run Zope 2.0 in ZODB2 mode, ie: run z2.py with the -2 >switch. This will use var/Data.bbb instead of var/Data.fs. > >Note, ZODB2 is NOT concurrent, and Zope 2.0 is STILL alpha in either >ZODB2 or ZODB3 mode. The latest stable release of Zope is 1.10.2, >with 1.10.3 (a bug fix release) probably tocome out on Friday if we >don't hear anything bugwise. > >-Michel > >> >> >> _______________________________________________ >> Zope maillist - Zope(a)zope.org >> http://www.zope.org/mailman/listinfo/zope >> >> (For developer-specific issues, use the companion list, >> zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) > >_______________________________________________ >Zope maillist - Zope(a)zope.org >http://www.zope.org/mailman/listinfo/zope > >(For developer-specific issues, use the companion list, >zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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RE: [Zope] FTP and apache?
by Michel Pelletier 16 Jun '99

16 Jun '99

> -----Original Message----- > From: Daniel M. Drucker [mailto:dmd@3e.org] > Sent: Wednesday, June 16, 1999 3:33 PM > To: Michel Pelletier > Cc: Zope List > Subject: RE: [Zope] FTP and apache? > > > > Apache is not an FTP server. If you don't run ZServer, there is no > > process to listen on port 9221. Zope does not listen on ports, the > > servers that use Zope do. > > > > If you want to run Apache as your HTTP server, and ZServer > as your FTP > > server (and whatever else) use ZServer with PCGI. > > > Where can I find documentation on how to do this? I see in > WEBSERVER.txt and INSTALL.txt that this is an option, but there's no > information on how to actually do it. > The easiest way is to install Zap (which I think you said you had), make sure it works without ZServer, stop Zap, make sure Zope is *not* running, and then run z2.py like this: python1.5.2 z2.py -w -p /path/to/Zope.cgi -d your.nameserver.ip.addr You sould see Zope start up and say that it is running a PCGI channel. If you don't specify a -p, then Zope will assume Zope.cgi in the same directory as z2.py, which is the normal case, so you can really omit the whole -p option if you wish. Note, Zap and ZServer will want to use the SAME tcp port (9673) to listen for HTTP requests. To turn off HTTP for ZServer (so that only Apache is listening) specify '-w' on the z2 command line (as I did above). Alternatively, you can change the port ZServer listens on by saying '-w port'. Next, fire up Zap 'Zap/startzap' and turn your browser to the location and port that *apache* is listening on. You'll see (in the console you ran Zope in) PCGI log a connection, and all should work well. -Michel > dmd > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev ) >

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Zope alpha on zope.org front page?
by Alexander Staubo 16 Jun '99

16 Jun '99

Is there a reason for having a link to 2.0.0a1 on the zope.org front page, whereas the "current development release" on the download page is 2.0.0a2? From the front page you'd assume the latest was alpha 1, which isn't even on the download page anymore. -- Alexander Staubo http://www.mop.no/~alex/ "`Ford, you're turning into a penguin. Stop it.'" --Douglas Adams, _The Hitchhiker's Guide to the Galaxy_

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Re: [Zope] help :( ... entire site disappeared
by michel＠digicool.com 16 Jun '99

16 Jun '99

Daniel M. Drucker <dmd(a)3e.org> writes: > I reinstalled Zope2, having saved my var directory to another > location. I shut down zope properly before saving that directory. > > Now, when I put the files from the old 'var' into the new 'var', the > new Zope2 doesn't see them and just gives the default view with > acl_users, control panel, and standard_*. > > Have I lost everything? What happened? Why doesn't it recognize my > Data.bbb? > If you run Zope in ZODB3 mode, then it will not use Data.bbb, but rather Data.fs (don't bother renaming your old .bbb to .fs, it won't work, ZODB3 and ZODB2 use different formats, it will probably overwrite your old file if you try this). To see your Data.bbb file, you must run Zope 2.0 in ZODB2 mode, ie: run z2.py with the -2 switch. This will use var/Data.bbb instead of var/Data.fs. Note, ZODB2 is NOT concurrent, and Zope 2.0 is STILL alpha in either ZODB2 or ZODB3 mode. The latest stable release of Zope is 1.10.2, with 1.10.3 (a bug fix release) probably tocome out on Friday if we don't hear anything bugwise. -Michel > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (For developer-specific issues, use the companion list, > zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

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XDTML
by Otto Hammersmith 16 Jun '99

16 Jun '99

Okay, here it is... how I think DTML could be represented as XML. The 'var' Tag This tag provides an awful lot of functionality. I think my suggestion would be to deprecate using 'var' as a linking element and create a (or set of) new element(s) based on XLink. The 'if', 'elif', 'else' and 'unless' Tags The problem with 'if', is the way Zope structures it currently- it can't be translated into well formed XML. It looks something like this: <if expr='...'> <elif expr='...'> <else> </if> There are alternatives with various advantages and drawbacks. The first option: <if> Option 1. </if> <elif> Option z. </elif> <else> Default option. </else> The advantage is it's nice and clean. The drawback is using an event based parser makes it a little harder to parse, though not impossible. Another option: <if expr='...'> Option 1. <elif expr='...'> Option 2. </elif> <else> Default option. </else> </if> This is just plain ugly, but it should be easier to parse. I think the best solution is what XSLT uses. The 'if' conditional is limited to a single conditional and a second element ('choose') is defined with syntax similar to C's switch. I don't think there are any severe disadvantages here. They would look like this: <if expr='...'> Optional. </if> and <choose> <when expr='...'> Option 1. </when> <when expr='...'> Option 2. </when> <otherwise> Default option. </otherwise> </choose> The 'unless' tag is simply an 'if' with an implicit negation of the expression. I don't think there is a need for a similar compliment to the 'choose' tag. The 'in' Tag This one is a straight forward conversion. It would look something like this: <in name='employees' sort='name'> ... </in> The 'with' Tag Another straight forward conversion. Some examples from the DTML manual translated to XML. <with name='subfolder'> <var name='title'/> </with> <with expr="_.namespace(profit=price-cost, title=product_name+' summary')"> <h3><var name='title'/></h3> The profit is <var name='profit'/> </with> The 'call' Tag Again a very simple conversion. Here is the example from the manual converted to XML: <call expr="addDocument('hi','display a greeting','Hello world!')"/> As has been mentioned by others, it might be nice to be able to include an entire script in a 'call' element, but that's an entirely different issue. The 'raise' Tag Yet another simple one with a converted example from the book: <raise type="Insufficient funds"> <p>There is not enough money in account <var name='account'> to cover the requested debit amount.</p> </raise> The 'comment' Tag This tag would be obsolete, as the standard XML comment delimiters () are no longer overloaded. It may be worthwhile to provide something similar to xsl:comment, which inserts a comment into the result. The 'tree' Tag The 'tree' tag has the potential to be a complicated conversion. I will make a more significant attempt when I create the first draft of the DTD. One thing I will consider is using XLink/XPointer to replace the header and footer (possibly more) attributes. Here is a conversion of a the simple example given in the DTML manual: <tree> <var name='id'> </tree> Ultimately, it may be best to leave the 'tree' tag as it stands and create a new version that incorporates XLink/XPointer. The 'sendmail' Tag This should be simple as well. Here is a translated example: <var name='standard_html_header'/> <sendmail smtphost="gator.digicool.com"> To: Product Support <<var name='support'/>> From: Web Feedback Form <<var name='feedback'/>> Subject: <var name='subject'/> <var name='body'/> </sendmail> Thank you for your input! <var name='standard_html_footer'/> Other Issues One problem that was brought up was having an output element with an attribute of a dynamic value. For example (in DTML): <a href="<!--#var BASE1>"> (Note, this may not be the best example since the functionality of this code is easily replaced by some kind of XLink support. However, it is easy to envision another case- setting the class attribute, for example.) The easy solution is this: <a href="<var name='BASE1'/>"> This is obviously ugly and hard to write. XSL solves this problem with two new elements, xsl:element and xsl:attribute. If I read the XSLT draft correctly it would look something like this: <a> <xsl:attribute name='href'> <var name='BASE1'/> </xsl:attribute> Contents of the element. </a> What Good Is XML? XML gives us a standard, relatively easy way to programmatically modify a document. This ability makes it trivial to write a document that changes without the intervention of the author. Take, for example, a page hit counter. With current methods counter data must be stored somewhere outside the document. If I move the document I have to manually modify the external data or I loose the current count. What I'd like to do is contain that count in the server side document. A good term might be "server side dynamic documents". This is different than the usual dynamic documents with JavaScript in that processing takes place on the server and changes are universal across clients. This is how I envision the counter example might work. <?xml version='1.0'?> <xdtml:xdtml xmlns:xdtml='...' xmlns:xhtml='...' xmlns:count='...'> <count:hits count='28'/> <xhtml:h1>NiftyTitle</xhtml:h1> <xdtml:call expr='increment("hits")'/> <xhtml:p>This page has been hit <xdtml:var name='hits'> times.</p> </xdtml:xdtml> A couple things that would probably change: 1) The var tag would really be an XLink element pointing to the contents of the hits element for inclusion. 2) The function 'increment' would probably be very different. Ideally, there would be a library of functions designed to mangle XML documents in common ways and, of course, the ability to fall back on a full-blown DOM interface. The traditional counter that covers a whole site could be done with a single document that only holds the counters. Each document that wanted to include that count would simply have an XPointer to another document. Every document that wanted to update the counter would have a line that updated the hits element on that other document. (Note, this can be done currently, I believe.. but the parsing of the DTML is not quite as straightforward.) -Otto.

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