Develop Reference

Any values taken from a Listbox return as "none" in bottle

I have a website in which you take values inputted from a website (using bottle) and add them to a database (using sqlalchemy). The data gathered for "Status" needs very specific strings otherwise it will fail so I thought of using a Listbox in order to avoid a miss input. When debugging whenever I try to use any type of Listbox however the result always returns "none" How can I fix this?
Relevant code:
#route('/savenew', method='post')
def savenew():
pass
# Gathers all of the information from the html inputs
add_Assetid = request.forms.get('Assetid')
add_AssetName = request.forms.get('AssetName')
add_category = request.forms.get('Category')
add_borrower = request.forms.get('Borrower')
add_status = request.forms.get('Status')
add_value = request.forms.get('Value')
# open a session
db_engine = create_engine('sqlite:///db/MusicAssets.db')
# creates a sessionmaker class for dynamic class creation
Session = sessionmaker(bind=db_engine)
# object creation
session = Session()
try:
# this adds all the new varibles inputted to the database
new_music = Music(
Assetid=add_Assetid,
AssetName=add_AssetName,
Category=add_category,
Borrower=add_borrower,
Status=add_status,
Value=add_value
)
session.add(new_music)
# commits to the changes being made.
session.commit()
# lets user use the changes were made and successful
message = "Successfully added entry"
# Error handling code any error stops ALL changes
except Exception as e:
# error message trying to give guidence to what could be the problem
error = ("Please make sure you have used correct values e.g only "
"using numbers for Value or inputting status correctly, "
"Onloan and Avaliable are the only accepted inputs "
"and are cap sensitive")
message = f"Error adding entry: " + error
finally:
# Goes to messgae template to display if the changes were sucessful
return template('changemsg.tpl', message=message)
Relevent HTML:
<div class="form-group">
<label for="exampleInputPassword1">Status</label>
<select class="form-select form-select-sm" aria-label=".form-select-sm example">
<option selected>Open this select menu</option>
<option name="Status">Onloan</option>
<option name="Status">Available</option>
</select>
</div>
This HTML for other inputs like this one below does work. It's just HTML above that doesn't seem to take any inputs:
<div class="form-group">
<label for="exampleInputPassword1">Value</label>
<input type="number" name="Value" class="form-control" />
</div>

You have name in wrong place - it has to be in <select>
<select name="Status">
<option selected>Open this select menu</option>
<option>Onloan</option>
<option>Available</option>
</select>

Jinja 2 - displaying all my words instead of one

Please excuse my code, I am still a relative beginner trying to complete a school project! Basically, I am trying to create a language learning system where you input a word and it checks if it is correct. However, on the page learn.html all of the words in my database are coming up. I want to get it so that when you load the page there is the first word and when you click the button it checks that word, allowing the page to display the next word to translate. An example of this would be memrise, this screenshot shows the kind of system that I am trying to emulate.
I know that this is because of the for loop but I have tried lots of solutions to no success. It seems like a really easy problem but I am really stuck. I have 0 JavaScript expertise so if possible I would try to stay away from JS solutions. I will really appreciate any help possible :)
learn.html
{% block content %}
<form class = "form" id="form1" action="/learn/check" methods=["POST"]>
<td>
<h5> Please enter the spanish for : {% for word in course_content %}{{ word.english }} {% endfor %} </h5>
<input type="text" name="language_learning_input" id="desc" value="" size="100" maxlength="140"/>
<p> </p>
</td>
<input type="submit" name="button" class="btn btn-success" value="Update"/>
</form>
{% endblock content %}
snippet of main.py
#LEARN SYSTEM
#STORING DB VALUES IN LISTS
def spanish():
#setting variables
holding_spanish = []
#running db query
course_content = db.session.query(Course).all()
#iterating through db
for row in course_content:
holding_spanish.append(row.spanish)
return holding_spanish
def english():
#setting variables
holding_english = []
#running db query
course_content = db.session.query(Course).all()
#iterating through db
for row in course_content:
holding_english.append(row.english)
return holding_english
def score():
#setting variables
holding_score = []
#running db query
account_settings = db.session.query(AccountSettings).all()
#iterating through db
for row in account_settings:
holding_score.append(row.words_per_lesson)
return holding_score
#MAIN LEARN PAGE
#app.route("/learn")
def learn():
#getting values
english()
spanish()
score()
x=1
testingvalue = [score()]
acccount_settings = db.session.query(AccountSettings).all()
course_content = db.session.query(Course).all()
return render_template('learn.html', course_content=course_content, acccount_settings=acccount_settings,testingvalue=testingvalue,x=x,english=english)
#ROUTE USED TO CHECK
#app.route("/learn/check", methods =['GET'])
def learncheck():
course_content = db.session.query(Course).all()
language_learning_input = request.args.get('language_learning_input')
for row in course_content:
if language_learning_input == row.spanish:
"<h1> correcto! </h1>"
print("true")
else:
"<h1> not correcto! :</h1>"
print("false")

Basically you need to understand two things.
First, of the many words you have to return only one. *
So, how do you know which word the user has already seen?
You don't. HTTP is a stateless protocoll. That means, each request (access by a browser) is independent of another one.
But you can work around this limitation.
So, second, you need to save the state. And there are several concepts.
From the top of my head, you could use
sessions
cookies
or pass a parameter with e.h. the current word, so you can deduct the next word
That's it. Enjoy your homework and do not hesitate to create a new question when you encounter a specific problem
You could also return all words, and then do the cycling through the words via Javascript.

How to Take Checkboxes in Python

I am trying to use checkboxes in my HTML, return these checkboxes to my python backend, and then increment three counters if the box is clicked.
Right now my HTML is as follows and works fine:
<form method="post">
<input type="checkbox inline" name="adjective" value="entertaining">Entertaining
<input type="checkbox inline" name="adjective" value="informative">Informative
<input type="checkbox inline" name="adjective" value="exceptional">Exceptional
</form>
and then on my python backend I have the following:
def post(self):
adjective = self.request.get('adjective ')
if adjective :
#somehow tell if the entertaining box was checked
#increment entertaining counter
#do the same for the others

When your form has multiple checkboxes with the same name attribute, the request will have multiple values for that name when the form is submitted.
Your current code uses Request.get to get a value, but this will only retrieve the first value if there is more than one. Instead, you can get all the values using Request.get_all(name) (in webapp) or Request.get(name, allow_multiple=True) (in webapp2). This will return a (possibly empty) list with all the values for that name.
Here's how you could use in in your code:
def post(self):
adjectives = self.request.get('adjective', allow_multiple=True)
for a in adjectives:
# increment count
self.adjective_count[a] += 1 # or whatever
# do more stuff with adjective a, if you want
# do other stuff with the request

wouldnt it be easier to change the name="" and put it the same as the value, so you can jsut ask
IF entertaining :
IF informative :
im no python programmer just tell let you no

A python coded "alert"-like dialog or template

update 0:
There is a subtle, but serious, error in my code and in my explanation below because I cannot only compare the name on the template with the hiddenname on the template (that much only tells me that the user has made a change like a checkbox change would tell me, but purposely there are no checkboxes), I also need to compare name to the status of name in the datastore of reservations to see if someone else has already reserved the time slot. So I cannot use javascript and I have to rewrite some of the code below to make the correct comparison, too. And may original question remains as suggested by the Title of this question. (In one of the comments I erroneously said that javascript would work.)
update 0:
I am trying to write a sort of "alert" in the way that this code suggests where I use the Trans model and the gae datastore (further below) to communicate between my main app and the "alert template". I have a few problems.
Initially I had my need for this alert in an another part of my code in an else: clause, not in an elif: clause. When I tried to use the simpler version of my alert in the elif code, python seemed to ignore the self.response.out.write(template.render(path, template_values)) and just went on to this code which ended my conditionals: return webapp2.redirect("/read/%s" % location_id). So, as you can see in my code I have commented out the ignored former code line and attempted to replace it with something more like the latter code line, but with that latter line directed to unexpected instead of read. You can see from my code it is still a mix between the two approaches and I could use help sorting that out. Is there really something different about else: and elif: regarding this?
Originally I had not anticipated my desire to call the same html template and Trans model from so many places in my code, so I did not design a key or ID or key_name into the design of using Trans. And now I am having trouble implementing a version with such detail.
I have been looking for an example of how such "alert templates" can be made in python. They are so easy in javascript, but I am trying to do the user input validation in my python code. Any pointers to examples or docs would be greatly appreciated.
weekday_key = db.Key.from_path('Locations',location_id,'Courts', court_id,'Days',weekday)
if name == hiddenname:
pass
elif name != hiddenname and hiddenname == "":
reservation = Reservations.get_or_insert(time[2],parent=weekday_key)
reservation.hour = time[0]
reservation.minute = time[1]
reservation.year = int(year)
reservation.nowmonth = int(nowmonth)
reservation.day = int(day)
reservation.nowweekday = int(nowweekday)
reservation.name = name
reservation.put()
elif name != hiddenname and name!="":
reservation = Reservations.get_by_key_name(time[2],parent=weekday_key)
reservation.hour = time[0]
reservation.minute = time[1]
reservation.year = int(year)
reservation.nowmonth = int(nowmonth)
reservation.day = int(day)
reservation.nowweekday = int(nowweekday)
reservation.name = name
reservation.put()
reason='This was in that time slot already: '
trans = Trans(parent=reservation.key().name()) #this line is iffy
trans.reason=reason
trans.name=hiddenname
trans.put()
iden = trans.key().id() # this is part of the iffy just above
template_values = {'trans':trans}
path = os.path.join(TEMPLATE_DIR, 'unexpected.html')
#self.response.out.write(template.render(path, template_values))
return webapp2.redirect("/unexpected/%s/%d" % (time[2],iden) #more iffy
else:
pass
My model for Trans in next.
class Trans(db.Model):
reason = db.StringProperty()
name = db.StringProperty()
My jinja2 equipped unexpected.html template is as follows.
{% extends "base.html" %}
{% block content %}
This unexpected result occurred. {{ trans.reason }}:<emph style="font-weight: bold">{{ trans.name }}</emph>
<br /><br />
<div id="inputdata">
<label>Click the "Ok" button to go back to the previous page so you can elect to edit your entry, or not.
</label>
<button onclick="window.history.back()">Ok</button>
</div>
{% endblock content %}

This question is answered here. It could have been answered in this question, but apparently there was too much information given and no one saw the answer.

"keyword can't be an expression" Form Post Data to Datastore

syntax error:
msg = "keyword can't be an expression"
offset = None
print_file_and_line = None
text = 'data = data(name and mood=self.request.POST)\n'
I'm posting much of the code here as even though my Datastore has a "Visitor" Entity with name, mood, date properties (the index.yaml file is working apparently), form data is not being submitted to Datastore as evident in Console query:
SELECT name FROM Visitor
^ SyntaxError: invalid syntax
The last section of the following is me guessing what to do from modified Google tutorial. I know it's wrong but hope you see what I'm trying to do:
class Visitor(db.Model):
name = db.StringProperty(required=1)
mood = db.StringProperty(choices=["Good","Bad","Fair"]) # this is Radio button
date = db.DateTimeProperty(auto_now_add=True)
class MainPage(webapp.RequestHandler):
def get(self):
self.response.out.write("""<html><body>
<form action="/" method="post">
<p>First Name: <input type="text" name="name"/></p> # text
<p><input type="radio" name="mood" value="good">Good</p> # radio button v
<p><input type="radio" name="mood" value="bad">Bad</p>
<p><input type="radio" name="mood" value="fair">Fair</p>
<p><input type="submit"value="Process"></p>
</form></body></html>""")
def post(self):
name = self.request.get("name")
mood = self.request.get("mood")
data = data(name and mood=self.request.POST) # < < ^ ^ PROBLEM(S)
if data.is_valid():
Visitor = data.save(commit=False)
Visitor.put()
thanks in advance for help to attain desired goal.

Your problem is at this line as you've pointed out
data = data(name and mood=self.request.POST)
The syntax error is because you're trying to do assignment in an expression.
mood=self.request.POST
#"name and mood" is a logical expression which will return
#"mood" if bool(name) is True and bool(mood) is True
#Otherwise it returns the first False value.
data=data(name and mood)
Of course, this is funny too because data is presumably a callable which you're replacing with it's result...
Also, data isn't defined anywhere (that we can see)...So while we've gotten rid of one syntax error, there are (likely) other problems lurking in your script.