/
wiki.py
189 lines (165 loc) · 5.91 KB
/
wiki.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
import json, re
import fields, search
from datetime import datetime
from util import to_slug
from creole import text2html
from config import redis
from flask import render_template_string
### Nodes ###
def get(slug):
slug = to_slug(slug)
if ':' in slug:
left, _, right = slug.partition(':')
if left == 'type':
return get_type(right)
if slug == 'type':
return get_type(slug)
src = redis.get("n:" + slug)
if src is None:
return None
node = json.loads(src)
if not 'type' in node:
node['type'] = 'document'
return node
def put(slug, value, update=True):
slug = to_slug(slug)
if ':' in slug:
left, _, right = slug.partition(':')
if left == 'type':
return put_type(right, value)
elif slug == 'type':
raise RuntimeError("Unnable to alter 'type'. That's hard coded.")
type = get_type(value['type']) or get_default_type()
try:
value = fields.process(type['fields'], value)
except TypeError:
raise FormError(type['fields'])
value['type'] = type['slug'].split(':', 1)[1]
value['slug'] = slug
if update:
value['updated'] = datetime.now().strftime("%Y-%m-%dT%H:%M:%S")
relations = set()
for k, content in value.items():
if isinstance(content, basestring):
relations.update(get_relations_from_text(content))
set_relations(slug, relations)
redis.set('n:' + slug, json.dumps(value))
search.index_node(value)
return value
class FormError(TypeError):
def __init__(self, field):
self.field = field
super(FormError, self).__init__("Error processing form.")
### Relations ###
re_related = re.compile(r"\[\[\s*\*([\w-]+)\s+(.*?)\]\]")
def get_relations_from_text(content):
for rel, obj in re_related.findall(content):
rel = to_slug(rel)
obj = to_slug(obj)
yield rel, obj
def set_relations(subj, relation_set):
current = ask(subj)
for tup in (current - relation_set):
unrelate(subj, *tup)
for tup in (relation_set - current):
relate(subj, *tup)
def relate(subj, predicate, obj):
redis.sadd("r:%s:%s" % (subj, predicate), obj)
redis.sadd("r:%s:%s" % (obj, predicate), subj)
redis.sadd("r:%s::%s" % (obj, subj), predicate)
redis.sadd("n:%s:subj" % subj, "%s:%s" % (predicate, obj))
redis.sadd("n:%s:obj" % obj, "%s:%s" % (subj, predicate))
def unrelate(subj, predicate, obj):
redis.srem("r:%s:%s" % (subj, predicate), obj)
redis.srem("r:%s:%s" % (obj, predicate), subj)
redis.srem("r:%s::%s" % (obj, subj), predicate)
redis.srem("n:%s:subj" % subj, "%s:%s" % (predicate, obj))
redis.srem("n:%s:obj" % obj, "%s:%s" % (subj, predicate))
def ask(subj, predicate="*", obj='*'):
if '*' not in (subj, predicate, obj):
return redis.sismember('r:%s:%s' % (subj, predicate), obj)
if subj == predicate == obj == '*':
raise RuntimeError('ask() cannot query in the form "* * *".')
if subj == obj == '*':
raise RuntimeError('ask() cannot query in the form "* <predicate> *".')
if subj == predicate == '*':
return set(tuple(x.split(':')) for x in redis.smembers('n:%s:obj' % obj))
if obj == predicate == '*':
return set(tuple(x.split(':')) for x in redis.smembers('n:%s:subj' % subj))
if subj == '*':
return redis.smembers("r:%s:%s" % (obj, predicate))
if predicate == '*':
return redis.smembers("r:%s::%s" % (obj, subj))
if obj == '*':
return redis.smembers('r:%s:%s' % (subj, predicate))
### Types ###
def get_type(slug):
if not slug:
return None
src = redis.get("n:type:" + slug)
if src is None:
return None
data = json.loads(src)
return data
def put_type(slug, value):
supertype = get_type_type()
try:
value = fields.process(supertype['fields'], value)
except TypeError:
raise FormError(supertype['fields'])
value['slug'] = 'type:' + slug
value['type'] = 'type'
value['updated'] = datetime.now().strftime("%Y-%m-%dT%H:%M:%S")
redis.sadd("types", slug)
redis.set('n:type:' + slug, json.dumps(value))
set_type_template(slug, 'details', value.get('details'))
set_type_template(slug, 'summary', value.get('summary'))
return value
def get_type_template(slug, key='details'):
return redis.hget('t:%s' % key, slug) or '-'
def set_type_template(slug, key, value):
if value:
redis.hset("t:%s" % key, slug, value)
def get_types():
result = {
'type': get_type_type()
}
for slug in redis.smembers('types'):
src = redis.get('n:type:' + slug)
if src is None:
redis.srem('types', slug)
else:
result[slug] = json.loads(src)
return result
def get_default_type():
return {
'slug': 'type:document',
'type': 'type',
'fields': [
{'name': 'name', 'type': 'string', 'length': 64},
{'name': 'content', 'type': 'page'},
],
'details': '{{node.content|creole}}',
'summary': '{{node.content|creole|striptags|truncate(length=140)}}',
}
def get_type_type():
return {
'slug': 'type',
'type': 'type',
'details': '{% for field in node.fields %}{{field|pprint}}{% endfor %}',
'summary': '{{node.slug}}',
'fields': [
{'name': 'fields', 'type': 'yaml'},
{'name': 'summary', 'type': 'page', 'help': 'Template for a summary.', 'required': False},
{'name': 'details', 'type': 'page', 'details': 'Template for the full view.', 'required': False},
{'name': 'width', 'type': 'integer', 'help': 'Default pixel with of the type.', 'required': False, 'default': 700},
]
}
### Migration ###
def rebuild_nodes():
for key in redis.keys('n:*'):
try:
node = get(key[2:])
except Exception, e:
continue
put(node['slug'], node, False)