-
Notifications
You must be signed in to change notification settings - Fork 4
/
models.py
139 lines (103 loc) · 3.69 KB
/
models.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
import json
from typing import List
from sqlalchemy import Column, Integer, Text, LargeBinary, ForeignKey, \
Boolean, UniqueConstraint
from sqlalchemy.exc import IntegrityError
from sqlalchemy.ext.declarative import declarative_base
from tornado.httpclient import HTTPResponse
from tornado.httputil import HTTPHeaders
Base = declarative_base()
class Workspace(Base):
__tablename__ = 'workspaces'
id = Column(Integer, primary_key=True)
name = Column(Text)
def update_labels(self, session, labels: List[str]):
self.update_model_by_field(session, Label, 'text', labels)
def update_urls(self, session, urls: List[str]):
self.update_model_by_field(session, Page, 'url', urls)
def update_model_by_field(
self, session, model: Base, field: str, values: List[str]):
values = set(values)
obj_by_value = {getattr(obj, field): obj for obj in
session.query(model).filter(model.workspace == self.id)}
for value in set(obj_by_value) - values:
session.delete(obj_by_value[value])
for value in values - set(obj_by_value):
session.add(model(workspace=self.id, **{field: value}))
class Page(Base):
__tablename__ = 'pages'
id = Column(Integer, primary_key=True)
workspace = Column(ForeignKey(Workspace.id))
url = Column(Text)
__table_args__ = (
UniqueConstraint('workspace', 'url', name='_workspace_url'),
)
class Label(Base):
__tablename__ = 'labels'
id = Column(Integer, primary_key=True)
workspace = Column(ForeignKey(Workspace.id))
text = Column(Text)
__table_args__ = (
UniqueConstraint('workspace', 'text', name='_workspace_text'),
)
class ElementLabel(Base):
__tablename__ = 'element_labels'
id = Column(Integer, primary_key=True)
page = Column(ForeignKey(Page.id))
selector = Column(Text)
label = Column(ForeignKey(Label.id))
__table_args__ = (
UniqueConstraint('page', 'selector', name='_page_selector'),
)
class Response(Base):
__tablename__ = 'responses'
id = Column(Integer, primary_key=True)
code = Column(Integer)
url = Column(Text)
_headers = Column(Text)
body = Column(LargeBinary)
page = Column(ForeignKey(Page.id))
is_main = Column(Boolean)
__table_args__ = (
UniqueConstraint('page', 'url', name='_page_url'),
)
def __init__(self, *, url: str, page: Page, code: int,
headers: HTTPHeaders, body: bytes, is_main: bool):
self.url = url
self.page = page.id
self.code = code
self._headers = dump_headers(headers) if headers else ''
self.body = body or b''
self.is_main = is_main
@property
def headers(self):
if self._headers:
return load_headers(self._headers)
def __repr__(self):
return '<Response "{}">'.format(self.url)
def dump_headers(headers: HTTPHeaders) -> str:
return json.dumps(list(headers.get_all()))
def load_headers(data: str) -> HTTPHeaders:
headers = HTTPHeaders()
for k, v in json.loads(data):
headers.add(k, v)
return headers
def get_response(session, page: Page, url: str) -> Response:
return session.query(Response).filter_by(page=page.id, url=url)\
.one_or_none()
def save_response(session, page: Page, url: str,
response: HTTPResponse, is_main: bool) -> Response:
response = Response(
url=url,
page=page,
code=response.code,
headers=response.headers,
body=response.body,
is_main=is_main,
)
session.add(response)
try:
session.commit()
except IntegrityError:
session.rollback()
return response