I need to update multiple records (rows) in a table.
First, I get informations to select rows to be update:
ran_st1 = 1
ran_st2 = 1
ran_bra = 'A'
pay_ide = 'FR'
bra_lib = 'Polyvitamines et oligo-éléments'
Then, I select rows to be updated:
rows= Randomisation.objects.filter(Q(ran_st1 = ran_st1) & Q(ran_st2 = ran_st2) & Q(ran_bra = ran_bra) & Q(pay_ide = pay_ide))
And then, I though to make a loop like that, but not sure:
for row in rows:
r = get_object_or_404(Randomisation, ran_ide = row.ran_ide)
r.ran_act = 1
r.save()
You can update with .update(..) [Django-doc]:
Randomisation.objects.filter(
ran_st1=ran_st1,
ran_st2 = ran_st2,
ran_bra = ran_bra,
pay_ide = pay_ide
).update(ran_act=1)
This will work with a query that looks like:
UPDATE randomisation
SET ran_act = 1
WHERE ran_st1 = 1
AND ran_st2 = 1
AND ran_bra = 'A'
AND pay_ide = 'FR'
AND bra_lib = 'Polyvitamines et oligo-elements'
This is thus done in one query, not in several queries where you each time fetch an element, update that element, and then make an update query to the database for that specific record.
Related
I created my first API where I can get data from my tables in Bigquery.
I can get all the data I need based on the 2 inputs below, but I am also trying to get the whole table when the inputs are empty, which I cannot do.
Thanks for your help
#app.route("/tracking", methods=['GET'])
def tracking_data():
haulier_id_tracking = request.args.get('haulier_id_tracking')
month_tracking = request.args.get('month_tracking')
query_job = bq_client.query("""
WITH t AS (
SELECT *
FROM mart.monthly_vehicle_stats
WHERE dt_fr_month = '{month_tracking}-01' AND (haulier_id_tracking = '{haulier_id_tracking}')
SELECT TO_JSON_STRING(STRUCT(ARRAY_AGG(STRUCT(dt_fr_month, haulier_id_tracking, vehicle_id , nb_days_tracked,
data_access, date_first_camp, invoiced)) AS data)) json
FROM t
""".format(month_tracking = month_tracking, haulier_id_tracking = haulier_id_tracking))
for row in query_job:
return json.loads(row["json"])
You can remove the where clause when the input is empty like this:
#app.route("/tracking", methods=['GET'])
def tracking_data():
haulier_id_tracking = request.args.get('haulier_id_tracking')
month_tracking = request.args.get('month_tracking')
where_clause = ''
if haulier_id_tracking != '' and month_tracking != '':
where_clause = f"WHERE dt_fr_month = '{month_tracking}-01' AND (haulier_id_tracking = '{haulier_id_tracking}'"
query_job = bq_client.query(f"""
WITH t AS (
SELECT * FROM mart.monthly_vehicle_stats {where_clause})
SELECT TO_JSON_STRING(STRUCT(ARRAY_AGG(STRUCT(dt_fr_month, haulier_id_tracking, vehicle_id , nb_days_tracked,
data_access, date_first_camp, invoiced)) AS data)) json
FROM t
""")
for row in query_job:
return json.loads(row["json"])
I'm not sure I am approaching this in the right way.
Scenario:
I have two SQL tables that contain rent information. One table contains rent due, and the other contains rent received.
I'm trying to build a rent book which takes the data from both tables for a specific lease and generates a date ordered statement which will be displayed on a webpage.
I'm using Python, Flask and SQL Alchemy.
I am currently learning Python, so I'm not sure if my approach is the best.
I've created a dictionary which contains the keys 'Date', 'Payment type' and 'Payment Amount', and in each of these keys I store a list which contains the data from my SQL queries. The bit im struggling on is how to sort the dictionary so it sorts by the date key, keeping the values in the other keys aligned to their date.
lease_id = 5
dates_list = []
type_list = []
amounts_list = []
rentbook_dict = {}
payments_due = Expected_Rent_Model.query.filter(Expected_Rent_Model.lease_id == lease_id).all()
payments_received = Rent_And_Fee_Income_Model.query.filter(Rent_And_Fee_Income_Model.lease_id == lease_id).all()
for item in payments_due:
dates_list.append(item.expected_rent_date)
type_list.append('Rent Due')
amounts_list.append(item.expected_rent_amount)
for item in payments_received:
dates_list.append(item.payment_date)
type_list.append(item.payment_type)
amounts_list.append(item.payment_amount)
rentbook_dict.setdefault('Date',[]).append(dates_list)
rentbook_dict.setdefault('Type',[]).append(type_list)
rentbook_dict.setdefault('Amount',[]).append(amounts_list)
I was then going to use a for loop within the flask template to iterate through each value and display it in a table on the page.
Or am I approaching this in the wrong way?
so I managed to get this working just using zipped list. Im sure there is a better way for me to accomplish this but im pleased I've got it working.
lease_id = 5
payments_due = Expected_Rent_Model.query.filter(Expected_Rent_Model.lease_id == lease_id).all()
payments_received = Rent_And_Fee_Income_Model.query.filter(Rent_And_Fee_Income_Model.lease_id == lease_id).all()
total_due = 0
for debit in payments_due:
total_due = total_due + int(debit.expected_rent_amount)
total_received = 0
for income in payments_received:
total_received = total_received + int(income.payment_amount)
balance = total_received - total_due
if balance < 0 :
arrears = "This account is in arrears"
else:
arrears = ""
dates_list = []
type_list = []
amounts_list = []
for item in payments_due:
dates_list.append(item.expected_rent_date)
type_list.append('Rent Due')
amounts_list.append(item.expected_rent_amount)
for item in payments_received:
dates_list.append(item.payment_date)
type_list.append(item.payment_type)
amounts_list.append(item.payment_amount)
payment_data = zip(dates_list, type_list, amounts_list)
sorted_payment_data = sorted(payment_data)
tuples = zip(*sorted_payment_data)
list1, list2, list3 = [ list(tuple) for tuple in tuples]
return(render_template('rentbook.html',
payment_data = zip(list1,list2,list3),
total_due = total_due,
total_received = total_received,
balance = balance))
order = 2
selected = 0
while selected < 21: # because I can only select 20 rows the most once.
current_tr = driver.find_element_by_xpath('/ html / body / table / tbody / tr / td / div / div[3] / table / tbody / tr[%d]' % order) # form line 1. below the table's header
if current_tr.get_attribute("bgcolor") is None: # no bgcolor means not yet reviewed
driver.find_element_by_xpath("//td[2]/div/a").click() # check the onclick content
div_content = driver.find_element_by_xpath("//td[2]/div/div").text # fetch onclick content
driver.find_element_by_xpath("//td[2]/div/div/a").click() # close the onclick content
print(div_content)
if "car" in div_content: #judge if certain string exists in onclick content
list_content = div_content.split("【car】")
car_close = list_content[1].strip() # fetch the content
list_car = car_close.split(" ")
car = list_doi[0]
print(car)
orderminus = order - 1
driver.find_element_by_xpath('// *[ # id = "%d"] / td[6] / a' % orderminus).click() # pick this row,
time.sleep(1)
selected = selected + 1
order = order + 0 #if this row is picked, the row will disappear, so the order won't change
else: ###problem is here, the else branch seems like never been executed ? otherwise the if always stands? no, not possible. there are ones exclude "car", the problem occurs at the first instance of div_content without "car"
order = order + 1 # if "car" is not in
time.sleep(1)
else: # if already reviewed, order + 1
order = order + 1
above is my code using selenium to navigate the webpage with a table.
First judgement: if the current row is reviewed,
not yet reviewed? ok, print the info;
already reviewed？skip it.
then plus judgement: if there certain string "car" in the info:
no? skip;
yes, click it, the row disappear;
But currently when I am running this, the actual status is :
when doing the plus judement, if the string "car" is not in the info,
it keeps printing the info, it seems it not doing the else branch, is doing the line 6_9 in this snippet, always, dead end loop.
Why? anybody give me a clue?
to make things clear， i have simplified my code as below:
list = []
list.append("ff122")
list.append("carff")
list.append("ff3232")
list.append("ffcar")
list.append("3232")
order = 0
selected = 0
while selected < 6:
current_tr = list[order]
print("round %d %s" % (order, current_tr))
if "ff" in current_tr:
print("ff is in current_tr")
if "car" in current_tr:
print("car")
selected = selected + 1
order = order + 0
else:
order = order + 1
print("order is %d" % order)
else: # if already reviewed, order + 1
order = order + 1
print("order is %d" % order)
everybody can run this, what I need to do is firstly filter the "ff", if "ff" exists, then filter "car". both two conditions TRUE, selected +1, until selected reach certain number. in real instance, don't doubt that the list is long enough.
Trying to Nest no's and yes's with their respective applications and services.
That way when a request comes in for a specific zone to zone sequence, a check can be run against this logic to verify accepted requests.
I have tried calling Decision_List[Zone_Name][yes_no].update and i tried ,append when it was a list type and not a dict but there is no update method ?
Base_Sheet = range(5, sh.ncols)
Column_Rows = range(1, sh.nrows)
for colnum in Base_Sheet:
Zone_Name = sh.col_values(colnum)[0]
Zone_App_Header = {sh.col_values(4)[0]:{}}
Zone_Svc_Header = {sh.col_values(3)[0]:{}}
Zone_Proto_Header = {sh.col_values(2)[0]:{}}
Zone_DestPort_Header = {sh.col_values(1)[0]: {}}
Zone_SrcPort_Header = {sh.col_values(0)[0]: {}}
Decision_List = {Zone_Name:{}}
for rows in Column_Rows:
app_object = sh.col_values(4)[rows]
svc_object = sh.col_values(3)[rows]
proto_object = sh.col_values(3)[rows]
dst_object = sh.col_values(2)[rows]
src_object = sh.col_values(1)[rows]
yes_no = sh.col_values(colnum)[rows]
if yes_no not in Decision_List[Zone_Name]:
Decision_List[Zone_Name][yes_no] = [app_object]
else:
Decision_List[Zone_Name]=[yes_no].append(app_object)
I would like it present info as follows
Decision_List{Zone_Name:{yes:[ssh, ssl, soap], no:
[web-browsing,facebook]}}
I would still like to know why i couldnt call the append method on that specific yes_no key whos value was a list.
But in the mean time, i made a work around of sorts. I created a set as the key and gave the yes_no as the value. this will allow me to pair many no type values with the keys being a set of the application, port, service, etc.. and then i can search for yes values and create additional dicts out of them for logic.
Any better ideas out there i am all ears.
for rownum in range(0, sh.nrows):
#row_val is all the values in the row of cell.index[rownum] as determined by rownum
row_val = sh.row_values(rownum)
col_val = sh.col_values(rownum)
print rownum, col_val[0], col_val[1: CoR]
header.append({col_val[0]: col_val[1: CoR]})
print header[0]['Start Port']
dec_tree = {}
count = 1
Base_Sheet = range(5, sh.ncols)
Column_Rows = range(1, sh.nrows)
for colnum in Base_Sheet:
Zone_Name = sh.col_values(colnum)[0]
Zone_App_Header = {sh.col_values(4)[0]:{}}
Zone_Svc_Header = {sh.col_values(3)[0]:{}}
Zone_Proto_Header = {sh.col_values(2)[0]:{}}
Zone_DestPort_Header = {sh.col_values(1)[0]: {}}
Zone_SrcPort_Header = {sh.col_values(0)[0]: {}}
Decision_List = {Zone_Name:{}}
for rows in Column_Rows:
app_object = sh.col_values(4)[rows]
svc_object = sh.col_values(3)[rows]
proto_object = sh.col_values(3)[rows]
dst_object = sh.col_values(2)[rows]
src_object = sh.col_values(1)[rows]
yes_no = sh.col_values(colnum)[rows]
for rule_name in Decision_List.iterkeys():
Decision_List[Zone_Name][(app_object, svc_object, proto_object)]= yes_no
Thanks again.
I think still a better way is to use collections.defaultdict
In this manner it will ensure that i am able to append to the specific yes_no as i had originally intended.
for colnum in Base_Sheet:
Zone_Name = sh.col_values(colnum)[0]
Zone_App_Header = {sh.col_values(4)[0]:{}}
Zone_Svc_Header = {sh.col_values(3)[0]:{}}
Zone_Proto_Header = {sh.col_values(2)[0]:{}}
Zone_DestPort_Header = {sh.col_values(1)[0]: {}}
Zone_SrcPort_Header = {sh.col_values(0)[0]: {}}
Decision_List = {Zone_Name:defaultdict(list)}
for rows in Column_Rows:
app_object = sh.col_values(4)[rows]
svc_object = sh.col_values(3)[rows]
proto_object = sh.col_values(2)[rows]
dst_object = sh.col_values(1)[rows]
src_object = sh.col_values(0)[rows]
yes_no = sh.col_values(colnum)[rows]
if yes_no not in Decision_List[Zone_Name]:
Decision_List[Zone_Name][yes_no]= [app_object, svc_object, proto_object, dst_object, src_object]
else:
Decision_List[Zone_Name][yes_no].append([(app_object, svc_object, proto_object,dst_object, src_object)])
This allows me to then set the values as a set and append them as needed
Here's the code I'm working on:
poljeID = int(cursor.execute("SELECT poljeID FROM stanje"))
xkoord = cursor.execute("SELECT xkoord FROM polje WHERE poljeID = %s;", poljeID)
ykoord = cursor.execute("SELECT ykoord FROM polje WHERE poljeID = %s;", poljeID)
print xkoord, ykoord
It's a snippet from it, basically what it needs to do is fetch the ID of the field (poljeID) where an agent is currently on (stanje) and use it to get the x and y coordinates of that field (xkoord, ykoord).
The initial values for the variables are:
poljeID = 1
xkoord = 0
ykoord = 0
The values that I get with that code are:
poljeID = 1
xkoord = 1
ykoord = 1
What am I doing wrong?
cursor.execute does not return the result of the query, it returns the number of rows affected. To get the result, you need to do cursor.fetchone() (or cursor.fetchall()) for each query.
(Note, really the second and third queries should be done at once: SELECT xkoord, ycoord FROM ...)