def render_explorer_annotation_create():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
id_ = request.form.get('id', None, int)
if id_ is not None:
# -- construct annotation --
owner_id = user.id
start = request.form.get('span_start')
length = request.form.get('span_length')
features = dict(zip(request.form.getlist('feature_key'), request.form.getlist('feature_value')))
annotation = Annotation(owner_id=owner_id, document_id=id_, start=start, length=length,
features=features)
# -- add to database --
app.database.add(annotation)
app.database.commit()
msg = 'Annotation created successfully'
app.messages.append(Message(Message.Type.SUCCESS, msg))
document = app.database.query(Document).get(id_)
return redirect(url_for('.render_explorer_corpus', id=document.corpus.id))
else:
msg = 'Invalid value for the document ID. Found \'{}\' expected an integer'.format(
request.form.get('id', None)
)
app.messages.append(Message(Message.Type.ERROR, msg))
return redirect(url_for('.render_explorer'))
def render_corpus_edit():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
id_ = request.args.get('id', None, int)
if id_ is not None:
if request.method == 'POST':
corpus = app.database.query(Corpus).get(id_)
if corpus is not None:
corpus.name = request.form['corpus_name']
app.database.commit()
msg = 'Corpus with ID \'{}\' deleted successfully.'.format(
id_)
app.messages.append(Message(Message.Type.SUCCESS, msg))
else:
msg = 'No such corpus with ID \'{}\' to delete.'.format(
id_)
app.messages.append(Message(Message.Type.ERROR, msg))
else:
corpora = serialize_corpora(app)
html = render_template('pages/corpus.html',
messages=app.messages,
corpora=corpora,
mode='edit',
edit_id=id_)
app.clear('messages')
return html
else:
msg = 'Invalid value for parameter ID. Found \'{}\' expected an integer.'.format(
id_)
app.messages.append(Message(Message.Type.ERROR, msg))
return redirect(url_for('.render_corpus'))
def render_corpus_add():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
corpus = Corpus(name=request.form['corpus_name'])
try:
app.database.add(corpus)
app.database.commit()
app.messages.append(
Message(Message.Type.SUCCESS,
'Corpus created successfully'))
except IntegrityError as err:
app.database.rollback()
if "Duplicate entry '{}' for key 'name'".format(
corpus.name) in str(err):
msg = 'Corpus name already exists \'{}\''.format(
corpus.name)
app.messages.append(Message(Message.Type.ERROR, msg))
else:
msg = 'Please contact admin for further assistance'
app.messages.append(Message(Message.Type.ERROR, msg))
except SQLAlchemyError as _:
msg = 'Please contact admin for further assistance'
app.messages.append(Message(Message.Type.ERROR, msg))
return redirect(url_for('.render_corpus'))
def render_corpus_document_add():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
id_ = request.args.get('id', None, int)
if id_ is not None:
if 'file' in request.files:
file = request.files['file']
if file.filename != '':
if file and allowed_file(file.filename):
file_data = file.read().decode('utf-8') # latin-1
for line in file_data.split('\n'):
text = line.strip()
document = Document(corpus_id=id_, text=text)
app.database.add(document)
app.database.commit()
msg = 'Documents added to Corpus with ID = `{}` successfully'.format(
id_)
app.messages.append(
Message(Message.Type.SUCCESS, msg))
else:
msg = 'File not allowed in the system'
app.messages.append(
Message(Message.Type.ERROR, msg))
else:
msg = 'No selected file'
app.messages.append(Message(Message.Type.ERROR, msg))
else:
msg = 'No file part'
app.messages.append(Message(Message.Type.ERROR, msg))
else:
msg = 'Invalid value for parameter ID. ' \
'Found \'{}\' expected an integer'.format(request.args.get('id', None))
app.messages.append(Message(Message.Type.ERROR, msg))
return redirect(url_for('.render_corpus'))
def render_explorer_corpus():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
id_ = request.args.get('id', None, int)
index = request.args.get('page', 1, int)
if id_ is not None:
corpora = app.database.query(Corpus).all()
try:
sel_corpus = app.database.query(Corpus).filter_by(id=id_).one()
except NoResultFound as _:
msg = 'Corpus not found in the database. You will be redirected to a default corpus if exists'
app.messages.append(Message(Message.Type.ERROR, msg))
else:
qry_documents = app.database.query(Document).filter_by(corpus_id=id_)
pagination = Pagination(qry_documents)
page_ = pagination.get(index)
sel_corpus = {**sel_corpus.serialize(), **serialize_documents(page_.items)}
html = render_template(
'pages/explorer.html',
messages=app.messages, corpora=corpora, selected_corpus=sel_corpus, pagination=pagination,
page=page_
)
app.clear('messages')
return html
else:
msg = 'Invalid value for parameter ID. ' \
'Found \'{}\' expected an integer'.format(request.args.get('id', None))
app.messages.append(Message(Message.Type.ERROR, msg))
return redirect(url_for('.render_explorer'))
def render_explorer_annotation_delete():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
id_ = request.args.get('id', None, int)
if id_ is not None:
owner_id = user.id
annotation = app.database.query(Annotation).get(id_)
if annotation is not None:
corpus_id = annotation.document.corpus.id
if owner_id == annotation.owner_id:
app.database.delete(annotation)
app.database.commit()
msg = 'Annotation (id=\'{}\') deleted successfully'.format(id_)
app.messages.append(Message(Message.Type.SUCCESS, msg))
return redirect(url_for('.render_explorer_corpus', id=corpus_id))
else:
msg = 'You are not authorized to delete annotation with ID \'{}\''.format(id_)
app.messages.append(Message(Message.Type.ERROR, msg))
else:
msg = 'Unable to find an annotation with the provided ID \'{}\''.format(id_)
app.messages.append(Message(Message.Type.ERROR, msg))
else:
msg = 'Invalid value for the document ID. Found \'{}\' expected an integer'.format(
request.args.get('id', None)
)
app.messages.append(Message(Message.Type.ERROR, msg))
return redirect(url_for('.render_explorer'))
def inject_user():
with ctx.SessionContext() as app:
try:
user = app.database.query(User).filter_by(
username=app.username).one()
except NoResultFound as _:
user = None
return dict(user=user)
def render_signup():
with ctx.SessionContext() as app:
if request.method == 'GET':
return render_template('pages/signup.html')
else:
username = request.form['username']
password = generate_password_hash(request.form['password'])
app.database.add(User(username=username, password=password))
app.database.commit()
return redirect(url_for('.render_index'))
def render_explorer():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
corpora = app.database.query(Corpus).all()
html = render_template('pages/explorer.html', messages=app.messages, corpora=corpora, selected_corpus=None)
app.clear('messages')
else:
html = redirect(url_for('index_page.render_index'))
return html
def render_corpus():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
corpora = serialize_corpora(app)
html = render_template('pages/corpus.html',
messages=app.messages,
corpora=corpora,
mode='view')
app.clear('messages')
else:
html = redirect(url_for('index_page.render_index'))
return html
def render_login():
with ctx.SessionContext() as app:
if request.method == 'GET':
return render_template('pages/login.html')
else:
messages = []
username = request.form['username']
password = request.form['password']
try:
user = app.database.query(User).filter_by(
username=username).one()
if not check_password_hash(user.password, password):
raise NoResultFound()
except NoResultFound as _:
msg = 'Invalid username or password.'
messages.append(Message(Message.Type.ERROR, msg))
else:
app.username = username
return redirect(url_for('.render_index'))
def render_corpus_delete():
id_ = request.args.get('id', None, int)
with ctx.SessionContext() as app:
user = check_login(app)
if user:
if id_ is not None:
corpus = app.database.query(Corpus).get(id_)
if corpus is not None:
app.database.delete(corpus)
app.database.commit()
msg = 'Corpus with ID \'{}\' deleted successfully.'.format(
id_)
app.messages.append(Message(Message.Type.SUCCESS, msg))
else:
msg = 'No such corpus with ID \'{}\' to delete.'.format(
id_)
app.messages.append(Message(Message.Type.ERROR, msg))
else:
msg = 'Invalid value for parameter ID. Found \'{}\' expected an integer.'.format(
id_)
app.messages.append(Message(Message.Type.ERROR, msg))
return redirect(url_for('.render_corpus'))
def render_explorer_annotation_update():
with ctx.SessionContext() as app:
user = check_login(app)
if user:
id_ = request.args.get('id', None, int)
if id_ is not None:
owner_id = user.id
annotation = app.database.query(Annotation).get(id_)
id_ = request.form.get('id', None, int)
if owner_id == annotation.owner_id:
if id_ == annotation.document.id:
start = request.form.get('span_start')
length = request.form.get('span_length')
feature_keys = request.form.getlist('feature_key')
feature_values = request.form.getlist('feature_value')
features = dict(zip(feature_keys, feature_values))
annotation.start = start
annotation.length = length
annotation.features = features
app.database.commit()
corpus_id = annotation.document.corpus.id
msg = 'Annotation (id=\'{}\') updated successfully'.format(id_)
app.messages.append(Message(Message.Type.SUCCESS, msg))
return redirect(url_for('.render_explorer_corpus', id=corpus_id))
else:
msg = 'Can\'t alter the document of the annotation'
app.messages.append(Message(Message.Type.ERROR, msg))
else:
msg = 'You are not authorized to delete annotation with ID \'{}\''.format(id_)
app.messages.append(Message(Message.Type.ERROR, msg))
else:
msg = 'Invalid value for the document ID. Found \'{}\' expected an integer'.format(
request.args.get('id', None)
)
app.messages.append(Message(Message.Type.ERROR, msg))
return redirect(url_for('.render_explorer'))
def render_logout():
with ctx.SessionContext() as app:
app.username = None
return redirect(url_for('.render_index'))
def render_index():
with ctx.SessionContext() as app:
html = render_template('pages/index.html', messages=app.messages)
app.clear('messages')
return html