Simple Templating System

Category: Python(Script)

#create a Folder called MiniCMS and do teh following inside that folder!

############
#create a DTML Document, MyContentObject
#title it My Content Object
<dtml-var standard_html_header>
<h2><dtml-var title_or_id></h2>
<dtml-in "getParagraphs(this())">
<p>  </p>
</dtml-in>
<dtml-var standard_html_footer>

##############
#create a DTML Template, editTemplate
<dtml-var standard_html_header>

<dtml-in getParagraphs>
<p>  </p> <a href="&dtml-URL1;/shiftPropertyOrdering?propSequenceNumber=&dtml-sequence-index;">Delete Paragraph</a>
</dtml-in>
<br>
<form method="POST" action="&dtml-URL1;/addPropertyToDocument">
<input type="hidden" name="type" value="text"
<input type="hidden" name="id" value="para_<dtml-var "_.len(getParagraphs())+1">">
<textarea name="value" cols="30" rows="7"></textarea> <br />
<input type="submit" name="submit" value="Create Paragraph">
</form>
<dtml-var standard_html_footer>

###############
#create a Script (Python), addPropertyToDocument
#it has a Parameter List: self=None
r = context.REQUEST
#we do this because sending a REQUEST returns us back to manage_
context.manage_addProperty(r['id'], r['value'], r['type'])
return r.RESPONSE.redirect(r.URL1+'/editTemplate')

############
#create a Script (Python), getParagraphs
#assumes obj has paragraph properties starting with para_
#propertyValues return tuple (id, value)

paragraphs=[]
prefix='para_'

#DTML Methods acquire namespace/context, so we dont have to explicit pass in obj
if self==None:
    self=context

for id,val in self.propertyItems():
    if id[:len(prefix)]==prefix:
    paragraphs.append(val)

return paragraphs

##############
#create a Script (Python), shiftPropertyOrdering
#it has a Parameter List: self=None, propSequenceNumber=None
req=context.REQUEST
prfx='para_'
del_no=int(propSequenceNumber)

if self==None:
    self=context

#sanity check
if del_no==None:
    raise Exception, "sequence number out of range"

hash = {}
for id, val in self.propertyItems():
    if id[:5]==prfx and int(id[5:])>=del_no:
        no = int(id[5:])
        hash[no]=val

pnums = []
pnums = hash.keys()
pnums.sort()

for x in pnums:
    if x+1 in hash.keys():
        hash[x]=hash[x+1]
    else: #we've gotten to the last element and we can remove it
        hash[x]=''  #not needed

#we change the newly allocated properties
self.manage_changeProperties(hash)

#we delete the last property
ids_to_remove=(prfx+str(pnums[-1]),) #sequence of ids to delete
self.manage_delProperties(ids_to_remove)

#redirect back to DTMLDocument/editTemplate
return req.RESPONSE.redirect(req.URL1+'/editTemplate')

has a minor bug ;( by runyaga - 2001-07-25 i didnt test it well enough and found a bug. its inside the shiftPropertyOrdering... if you can figure it out please reply ;) I will figure it out later. its **not** a show stopper. the recipe is still useable.

Re: has a minor bug ;( by polaris - 2001-07-25 i did not test this code below as-is, but it looks to me like you need to add the prefix from earlier to each key of the hash so that manage_changeProperties will work correctly. for x in pnums: if x+1 in hash.keys(): hash[x]=hash[x+1] else: #we've gotten to the last element and we can remove it hash[x]='' #not needed #we change the newly allocated properties self.manage_changeProperties(hash) i rewrote it and added these lines: for x in pnums: if x + 1 in hash.keys(): hash[x] = hash[x + 1] else: hash[x] = '' hashish = {} for key in hash.keys(): hashish[prefix + str(key)] = hash[key] self.manage_changeProperties(hashish) probably there is a better way, but..... :)

Hi,
I'm getting the following error when creating the getParagraphs script..

File "", line 15

    paragraphs.append(val)

             ^

SyntaxError: invalid syntax

Any help would be appreciated...
Thanks
Bob