Hi I am building a web app with Flask Python. I got a problem here:
#app.route('/analytics/signals/<ticker_url>')
def analytics_signals_com_page(ticker_url):
all_ticker = full_list
ticker_name = com_name
ticker = ticker_url.upper()
pricerec = sp500[ticker_url.upper()].tolist()
timerec = sp500[ticker_url.upper()].index.tolist()
return render_template('company.html', all_ticker=all_ticker, ticker_name=ticker_name, ticker=ticker, pricerec=pricerec, timerec=timerec)
Here I am defining company pages based on the a page will contain different content. The problem is that everything is fine upto ticker = ticker_url.upper(). It works perfectly fine. But for pricerec and timerec, they make problems.
sp500 is a pandas DataFrame columns being companies like "AAPL", "GOOG","MSFT", and so forth 505 companies and the index are timestamps, and values are the prices at each time.
So what I am doing for the pricerec, I am taking the ticker_url and use it to take the specific company's price and make it as a list. And timerec is to take the index (timestamps) and make it as a list. And I am passing these two variables into the company.html page.
But it makes internal server error. I do not know why it happens.
My expectation was that when a user click a button that href to "~/analytics/signals/aapl" then the company.html page will contain the pricerec and timerec for me to draw a graph. But it didn't work like that. It makes internal server error. I defined those two variables in the javascript also like I did for the other variables(all_ticker, ticker_name, and ticker)
Can anyone help me with this issue?
Thanks!
Related
I am programming in python a script to obtain statistical data of the public schools of the city in which I live. With the following code I get the source code of a page that shows, by pages, the first 100 results of a total of 247 schools:
import requests
url = "http://www.madrid.org/wpad_pub/run/j/BusquedaAvanzada.icm"
post_call = {'Public title': 'S', 'cdMuni': '079', 'cdNivelEdu': '6545'}
r = requests.post(url, data = post_call)
The page can be viewed here.
On that page there is a button that activates a javascript function to download a csv file with all 247 results. I was thinking of using Selenium to download this file, but I have seen, using Tamper Data, that when the button is pressed a POST call occurs, in which the parameter codCentrosExp is sent with the codes of the 247 colleges. The parameter looks like this:
CodCentrosExp = 28077877%3B28077865%3B28063751%3B28018392%3B28018393%...(thus up to the 247 codes)
This makes my work easier, since I do not have to download the csv file, open it, select the code column, etc. And I could do it with Tamper Data, but my question is: how can I get that parameter with my Python script, without having to use Tamper Data?
I finally found the parameter in the page's source code, and extracted them as follows:
schools = BeautifulSoup(r.content, "lxml")
school_codes = schools.findAll(Attrs = {"name": "codCentrosExp", "value": re.compile("^.+$")})[0]["value"]
school_codes = school_codes.split(";")
Anyway, if anyone knows how to respond to the original question, I would be grateful to know how it could be done.
I am having the same problem as per the thread (Spotfire IronPython Script to Scroll through a Filter and Update a Visualization Each Step (Play Button through Date Ranges)) but in the form of a listbox filtering in spotfire using IP. I have a action control button named as "Magic". What I wanted to do was when this button is hit, the code will first figure out the number of unique values in a data field and populate these values into a listbox. From there, I then extract out the fields to display in a map chart visualization. The visualization is supposed to change in appearance after a certain specified time interval but as mentioned before, this does not work in IP. I have attached my code below. Is there a chance someone can guide me through how to implement this in HTML and JS? I have very little experience in them. Thank you very much in advanced!
#!/usr/bin/python
import time
import Spotfire.Dxp.Application.Filters as filters
import Spotfire.Dxp.Application.Filters.ListBoxFilter
from Spotfire.Dxp.Application.Filters import FilterTypeIdentifiers
from Spotfire.Dxp.Data import *
from Spotfire.Dxp.Application.Filters import *
finalStr = ""
found, nodes = myTable.Columns["FSY_CODE"].Hierarchy.Levels.LeafLevel.TryGetNodes(int.MaxValue)
for node in nodes:
finalStr = finalStr + ',' + node.Value.ValidValue + ''
finalStr = finalStr.strip(',')
print(finalStr)
myPanel=Application.Document.ActivePageReference.FilterPanel
myFilter=myPanel.TableGroups[1].GetFilter("FSY_CODE")
myFilter.FilterReference.As[ListBoxFilter]().Reset()
myFilter.FilterReference.As[ListBoxFilter]().IncludeAllValues = False
def p1():
myFilter.FilterReference.As[ListBoxFilter]().SetSelection("E")
print("Proc 1")
def p2():
myFilter.FilterReference.As[ListBoxFilter]().SetSelection("H")
print("Proc 2")
def p3():
myFilter.FilterReference.As[ListBoxFilter]().SetSelection("P")
print("Proc 3")
p1()
time.slp(5)
p2()
time.slp(5)
p3()
#if myTable.IsRefreshable and myTable.NeedsRefresh:
# myTable.Refresh()
#myFilter.FilterReference.As[ListBoxFilter]().SetSelection(finalStr.split(','))
if you haven't already, please read my original answer which #kaorie mentions. definitely look into the example DXP I provided, as I tried to be very detailed in my explanation. if you still have questions about it, bump this thread.
I have 2 tables which are both in an Azure SQL Database which is connected to my Lightswitch Sharepoint app. I am doing some manipulation of the data in code, and it appears to be working, except that when I load the entities from one table, I am not able to see the related entities in the other.
Basically, I have a products table and an invoice lines table. Each invoice line record contains a product code, which relates to the products table PK. I have defined the relationship in Lightswitch, but when I load the invoice line record, I can't see the product information.
My code is as follows:
// Select invoice and get products
myapp.AddEditServiceRecord.InvoicesByCustomer_ItemTap_execute = function (screen) {
screen.ServiceRecord.InvoiceNumber = screen.InvoicesByCustomer.selectedItem.INVO_NO;
// Delete existing lines (if any)
screen.ServiceDetails.data.forEach(function (line) {
line.deleteEntity();
});
// Add products for selected invoice
screen.getInvoiceLinesByNumber().then(function (invLines) {
invLines.data.forEach(function (invLine) {
invLine.getProduct().then(function (invProduct) {
var newLine = new myapp.ServiceDetail();
newLine.ServiceRecord = screen.ServiceRecord;
newLine.ProductCode = invLine.ProductCode;
newLine.ProductDescription = invProduct.Description;
newLine.CasesOrdered = invLine.Cases;
});
});
});
};
The idea is that a list of invoices are on the screen 'InvoicesByCustomer', and the user clicks one to add the details of that invoice to the 'ServiceRecord' table. If I comment out the newLine.ProductDescription = invProduct.Description line it works perfectly in adding the correct product codes and cases values. I have also tried a few other combinations of the below code, but in each case the related product entity appears as undefined in the Javascript debugger.
EDIT: I also read this article on including related data (http://blogs.msdn.com/b/bethmassi/archive/2012/05/29/lightswitch-tips-amp-tricks-on-query-performance.aspx) and noticed the section on 'Static Spans'. I checked and this was set to 'Auto (Excluded)' so I changed it to 'Included', but unfortunately this made no difference. I'm still getting the invProduct is undefined message. I also tried simply invLine.Product.Description but it gives the same error.
The solution in this case was a simple one. My data was wrong, and therefore Lightswitch was doing it's job correctly!
In my Invoices table, the product code was something like 'A123' whereas in my Products table, the product code was 'A123 ' (padded with spaces on the right). When doing SQL queries against the data, it was able to match the records but Lightswitch (correctly) saw the 2 fields as different and so could not relate them.
I may have wasted several hours on this, but it's not wasted when something has been learnt...or so I'll tell myself!
I'm having massive problems with databinding to a ListView in a Windows 8 app using Javascript.
Inside the "activated" event on default.js I have written some code to get some data from a web service and push it into an array. This bit works OK and the array is populated.
The problem I have is that the app won't recognise the data. I have this code in a page called inspections.html:
data-win-options="{itemTemplate: select('#imageTextListCollectionTemplate'),
itemDataSource: dataList.dataSource,
layout: {type: WinJS.UI.ListLayout}}
and then in the "activated" event I declare:
var dataList = new Array();
and push the data from the web service into this array. But at runtime I get an error that says something along the lines of "can't find dataSource on undefined dataList".
I've done some of the examples on the MS website and in one of them it creates a dummy dataset and references it from a namespace. I kinda think that what I'm missing here is a namespace too but I don't know what the namespace for default.js is. Or maybe I'm wrong and it's something totally different.
Please help - this is so fundamental (and should be easy) but I can't get my head around it.
Do you want to create datalist in HTML or javascript?
It seems you want to create it from JavaScript. Assuming that you have already pushed your data into array from your webservice, you only need to call:
var dataList = new WinJS.Binding.List(array);
now accessing dataList.dataSource is perfectly valid.
Also, to create the datalist you don't always need an array. You could probably start with an empty list and then keep inserting data directly into the data list from web services, like:
var dataList = new WinJS.Binding.List([]);
dataList.push(value1);
dataList.push(value2);
...
Hope it helps. Let me know if you have any more questions.
If you are getting troubled by assigning datasource in HTML side
Prefer js side like
var list = new WinJS.Binding.List(array here);
listView.itemDataSource = list.dataSource;
by using this you can easily go through the data which you are binding to ListView.
I wanted to develop a Django app and one of the functionalities I'd like to have is dynamic drop-down lists...specifically for vehicle makes and models...selecting a specific make will update the models list with only the models that fall under that make....I know this is possible in javascript or jQuery (this would be my best choice if anyone has an answer) but I don't know how to go about it.
Also, I'd want the make, model, year and series to be common then the other attributes like color, transmission etc to be variables so that one needs only enter the make, model, year, and series only for a new vehicle. Any ideas would be highly appreciated.
The 3 things you mention being common, make, model, year, would be the 3 input values. When given to the server, an object containing the details would be returned to the calling page. That page would parse the object details (using JavaScript), and update the UI to display them to the user.
From the Django side, there needs to be the facilities to take the 3 inputs, and return the output. From the client-side, there needs to be the facilities to pass the 3 inputs to the server, and then appropriately parse the server's response.
There is a REST api framework for Django that makes it rather easy to add the "api" mentioned above -- Piston. Using Piston, you'd simply need to make a URL for that resource, and then add a handler to process it. (you'll still need to skim the Piston documentation, but this should give you an idea of what it looks like)
urls.py:
vehicle_details = Resource(handler=VehicleDetails)
url(r'^vehicle/(?<make>.*)/(?<model>.*)/(?<year\d{2,4}/(?P<emitter_format>[a-z]{1,4}), vehicle_details, name='vehicle_details'),
handler.py:
class VehicleDetails(BaseHandler):
methods_allowed = ('GET',)
model = Vehicles #whatever your Django vehicle model is
def read(self, request, *args, **kwargs):
# code to query the DB and select the options
# self.model.objects.filter()...
# Build a custom object or something to return
return custom_object
This simply sets up the url www.yoursite.com/vehicle/[make]/[model]/[year]/json to return a custom data object in JSON for jquery to parse.
On the client side, you could use jquery to setup an event (bind) so that when all 3 drop downs have a value selected, it will execute a $.get() to the api URL. When it gets this result back, it passes it into the Jquery JSON parser, and gives the custom object, as a javascript object. That object could then be used to populate more drop down menus.
(Big warning, I just wrote the following off the top of my head, so it's not meant to be copy and pasted. It's just for the general idea.)
<script type="text/javascript">
// On document load
$(function() {
$('#dropdown_make').bind('change', checkForValues());
$('#dropdown_model').bind('change', checkForValues());
$('#dropdown_year').bind('change', checkForValues());
});
function checkForValues() {
if ($('#dropdown_make').val() && $('#dropdown_model').val() && $('#dropdown_year').val())
updateOptions();
}
function updateOptions() {
url = '/vehicle/';
url += $('#dropdown_make').val() + '/';
url += $('#dropdown_model').val() + '/';
url += $('#dropdown_year').val() + '/';
url += 'json/';
$.get(url, function(){
// Custom data object will be returned here
})
}
</script>
This is uncanny: Dynamic Filtered Drop-Down Choice Fields With Django
His question:
"Here is the situation: I have a database with car makes and models. When a user selects a make, I want to update the models drop-down with only the models associated with that make. ... Therefore I want to use Ajax to populate the data."
You're not the same guy? :)