Table of Contents

Module: TreeTag Zope-2.2.1-src/lib/python/TreeDisplay/TreeTag.py

Rendering object hierarchies as Trees

Imported modules   
from DocumentTemplate.DT_String import String
from DocumentTemplate.DT_Util import *
from binascii import b2a_base64, a2b_base64
from string import join, split, rfind, find, translate
from urllib import quote, unquote
from zlib import compress, decompress
Functions   
apply_diff
decode_seq
encode_seq
encode_str
oid
tpRender
tpRenderTABLE
tpStateLevel
tpValuesIds
  apply_diff 
apply_diff (
        state,
        diff,
        expand,
        )

  decode_seq 
decode_seq ( state )

Convert an encoded string to a sequence

Exceptions   
'Illegal State'
  encode_seq 
encode_seq ( state )

Convert a sequence to an encoded string

  encode_str 
encode_str ( state )

Convert a sequence to an encoded string

  oid 
oid ( self )

  tpRender 
tpRender (
        self,
        md,
        section,
        args,
        simple_type={ type( '' ) : 0, type( 1 ) : 0, type( 1.0 ) : 0 },
        )

Render data organized as a tree.

We keep track of open nodes using a cookie. The cookie stored the tree state. State should be a tree represented like:

[] # all closed ['eagle'], # eagle is open ['eagle'], ['jeep', [1983, 1985]] # eagle, jeep, 1983 jeep and 1985 jeep

where the items are object ids. The state will be converted to a compressed and base64ed string that gets unencoded, uncompressed, and evaluated on the other side.

Note that ids used in state need not be connected to urls, since state manipulation is internal to rendering logic.

Note that to make eval safe, we do not allow the character * in the state.

  tpRenderTABLE 
tpRenderTABLE (
        self,
        id,
        root_url,
        url,
        state,
        substate,
        diff,
        data,
        colspan,
        section,
        md,
        treeData,
        level=0,
        args=None,
        simple_type={ type( '' ) : 0, type( 1 ) : 0, type( 1.0 ) : 0 },
        )

Render a tree as a table

Exceptions   
ValidationError
  tpStateLevel 
tpStateLevel ( state,  level=0 )

  tpValuesIds 
tpValuesIds (
        self,
        get_items,
        args,
        simple_type={ type( '' ) : 0, type( 1 ) : 0, type( 1.0 ) : 0 },
        )

Classes   
Tree

Table of Contents

This document was automatically generated on Mon Sep 4 07:33:06 2000 by HappyDoc version r0_6