Mercurial > p > roundup > code
annotate scripts/schema_diagram.py @ 7315:b8e88d4ca95b
Add redis library to docker image; mention xapian is installed
Support using redis for session data.
xapian has to match the version of xapian libraries installed in the
image. So it is nt installed by requirements.txt. Make note in
requirements.txt that it is installed.
| author | John Rouillard <rouilj@ieee.org> |
|---|---|
| date | Thu, 11 May 2023 00:01:15 -0400 |
| parents | 23b8e6067f7c |
| children | 9c3ec0a5c7fc |
| rev | line source |
|---|---|
| 1166 | 1 #! /usr/bin/python |
| 2 # | |
| 3 # Schema diagram generator contributed by Stefan Seefeld of the fresco | |
| 4 # project http://www.fresco.org/. | |
| 5 # | |
| 6 # It generates a 'dot file' that is then fed into the 'dot' | |
| 7 # tool (http://www.graphviz.org) to generate a graph: | |
| 8 # | |
| 9 # %> ./schema.py | |
| 10 # %> dot -Tps schema.dot -o schema.ps | |
| 11 # %> gv schema.ps | |
| 12 # | |
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13 from __future__ import print_function |
| 1166 | 14 import sys |
| 15 import roundup.instance | |
| 16 | |
| 17 # open the instance | |
| 18 instance = roundup.instance.open(sys.argv[1]) | |
| 19 db = instance.open() | |
| 20 | |
| 21 # diagram preamble | |
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22 print('digraph schema {') |
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parents:
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23 print('size="8,6"') |
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parents:
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24 print('node [shape="record" bgcolor="#ffe4c4" style=filled]') |
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Python 3 preparation: convert print to a function.
Joseph Myers <jsm@polyomino.org.uk>
parents:
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25 print('edge [taillabel="1" headlabel="1" dir=back arrowtail=ediamond]') |
| 1166 | 26 |
| 27 # get all the classes | |
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28 types = list(db.classes.keys()) |
| 1166 | 29 |
| 30 # one record node per class | |
| 31 for i in range(len(types)): | |
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parents:
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32 print('node%d [label=\"{%s|}"]'%(i, types[i])) |
| 1166 | 33 |
| 34 # now draw in the relations | |
| 35 for name in db.classes.keys(): | |
| 36 type = db.classes[name] | |
| 37 attributes = type.getprops() | |
| 38 for a in attributes.keys(): | |
| 39 attribute = attributes[a] | |
| 40 if isinstance(attribute, roundup.hyperdb.Link): | |
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Python 3 preparation: convert print to a function.
Joseph Myers <jsm@polyomino.org.uk>
parents:
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41 print('node%d -> node%d [label=%s]'%(types.index(name), |
| 1166 | 42 types.index(attribute.classname), |
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Python 3 preparation: convert print to a function.
Joseph Myers <jsm@polyomino.org.uk>
parents:
1166
diff
changeset
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43 a)) |
| 1166 | 44 elif isinstance(attribute, roundup.hyperdb.Multilink): |
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Python 3 preparation: convert print to a function.
Joseph Myers <jsm@polyomino.org.uk>
parents:
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diff
changeset
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45 print('node%d -> node%d [taillabel="*" label=%s]'%(types.index(name), |
| 1166 | 46 types.index(attribute.classname), |
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Python 3 preparation: convert print to a function.
Joseph Myers <jsm@polyomino.org.uk>
parents:
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47 a)) |
| 1166 | 48 # all done |
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Python 3 preparation: convert print to a function.
Joseph Myers <jsm@polyomino.org.uk>
parents:
1166
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changeset
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49 print('}') |