def create_alert(item_id):
"""create_alert(string id) -> returns redirect or render form object
Takes an item id and creates a new alert for that item
:parameter
`item_id`: An item ID that allow the user to create an alert for that item
"""
item = Item.get_item_by_id(item_id=item_id)
form = NewAlertForm()
if item and form.validate_on_submit():
alert = Alert(
price_limit=form.alert_limit.data,
item_id=item_id,
)
item.alert_added = True
item.alert = alert.save()
item.save()
return redirect(url_for('alert_app.all_alerts', page=1))
return render_template('alerts/new_alert.html',
form=form,
item_id=item_id,
item=item)
def delete_alert(item_id, alert_id):
"""delete_alert(string ID, string ID) -> returns redirect obj
Allows the user to delete an alert for a given item. Note
the item must already have alert.
:parameter
`item_id` : A string ID that represents a given item
`alert_id`: A String ID that represents an alert for a given item
"""
Alert.delete_alert_by_id(item_id, alert_id)
return redirect(url_for('.all_alerts', page=1))
def get_alert_page(alert_id=None):
"""get_alert_page(str ID default None) -> returns redirect obj or render template
A permalink page that returns an alert for a given item
:parameter
`alert_id`: The alert ID for a given item
"""
alert = Alert.get_alert_by_id(alert_id)
if not alert:
return redirect(url_for('.alert_not_created_error'))
return render_template('alerts/alert.html',
alert=Alert.get_alert_by_id(alert_id))
def deactivate_alert(item_id, alert_id):
"""deactivate_alert(string ID, string ID) -> returns redirect obj
Allows the user to deactivate an alert for a given item. Note
the alert must be created and active
:parameter
`item_id` : A string ID that represents a given item
`alert_id`: A String ID that represents an alert for a given item
"""
Alert.deactivate_alert(item_id, alert_id)
if is_safe_url(request.referrer):
return redirect(request.referrer)
return redirect(url_for('.get_alert_page', alert_id=alert_id))
def edit_my_alert(alert_id):
"""edit_my_alert(string id) -> returns render template or redirect obj
Allows the user to edit an active alert.
:parameter
`alert_id`: An string ID that represents a given alert
"""
alert, error = Alert.get_alert_by_id(alert_id), ''
form = EditAlertForm()
if request.method == 'POST' and form.validate_on_submit():
alert.update({'price_limit': form.alert_limit.data})
return redirect(url_for('user_app.user_alerts'))
try:
return render_template('alerts/edit_alert.html',
form=form,
alert=alert,
alert_id=alert_id,
error=error)
except:
return redirect(url_for('.alert_creation_error'))
def activate_alert(item_id, alert_id):
"""activate_alert(string ID, string ID) -> returns redirect obj
Allows the user to activate an alert for a given item. Note
the item must already have alert and it must be disabled.
:parameter
`item_id` : A string ID that represents a given item
`alert_id`: A String ID that represents an alert for a given item
"""
Alert.activate_alert(item_id, alert_id)
if is_safe_url(request.referrer):
return redirect(request.referrer)
return redirect(url_for('.get_alert_page', alert_id=alert_id))
def check_price_for_alert(alert_id):
"""check_price_for_alert(string ID) -> returns (redirect obj or render template)
Checks whether the user's item has reached the given price that was set by
the user
:parameter
`alert_id`: The alert ID for a given item
"""
try:
alert = Alert.load_alert(alert_id)
except ValueError:
return redirect(url_for('.check_price_error'))
else:
alert.load_price(fetch_new=True)
return redirect(url_for('.get_alert_page', alert_id=alert_id))
def all_alerts(page=1):
"""Returns all alerts set by the user"""
return render_template('alerts/alerts.html', alerts=Alert.get_alerts(page))