I created a Gallery with a Title == Name and a subtitle == First Name by item.
I want this gallery to be sorted and remove duplicates.
I tried this:
Sort(Distinct(Data_source, Name), Result)
The problem is that I get Title == Name and subtitle == Name instead of Fisrt Name.
How can I keep different fields ?
Thanks
As you noticed, the Distinct function will only return the distinct values from the selected column, and discard the other ones. If you want to preserve the other values, you can use the GroupBy function, and take one of the elements of the group. Something along the lines of the expression below:
ForAll(
GroupBy(
Data_source,
"Name",
"ByName"),
Patch(
{ Name: ThisRecord.Name },
First(ThisRecord.ByName)
)
)
Related
Is it possible to put a filter into the Issue model whose items are getting counted here????
issues = Student.objects.annotate(Count('issue'))
I really need to filter it so as to get the desired outcome...
If not is there a way I can be able to get count of all Issues to a particular student?
class Issue(SafeDeleteModel):
_safedelete_policy = SOFT_DELETE
borrower_id = models.ForeignKey(Student,on_delete=models.CASCADE)
book_id = models.ForeignKey(Books,on_delete=models.CASCADE)
class Student(models.Model):
school = models.ForeignKey(School, on_delete=models.CASCADE)
name = models.CharField(max_length=200)
student_id = models.CharField(max_length=20)
Yes, you can filter what items are counted with the filter=… parameter [Django-doc]. We can for example filter on the book_id with:
issues = Student.objects.annotate(
num_issues=Count(
'issue',
filter=Q(issue__book_id_id=some_book_id)
)
)
or to exclude soft deleted items, we can work with the deleted field that has been defined in your model (by the django-safedelete package):
issues = Student.objects.annotate(
num_issues=Count(
'issue',
filter=Q(issue__deleted=False)
)
)
Note: Normally one does not add a suffix _ids to a ManyToManyField field, since Django
it refers to a manager over the target objects. Therefore it should
be book, instead of book_id.
In my first attempt to develop something in Ruby on Rails :) ... I have a list of names stored in fields "first_name" and "last_name". In my Person model, I have defined something like this:
def sort_name
sort_name = last_name + ',' + first_name
end
Now I want to show all persons shown in a list, sorted by sort_name, but (in my controller) something like
#persons = Person.order(:sort_name)
doesn't work (Unknown column 'sort_name' in 'order clause'). How do reference to the calculated field sort_name in my controller?
I am sure this is a "oh my god I am so stupid moment" but happy for any advise!
If the model Person has the fields name, first_lastname and second_lastname, you can do the next:
Person.order(:name, :first_lastname, :second_lastname)
By default is ordering in ascending way. Also you can put if you want ascending or descending way for each field:
Person.order(name: :asc, first_lastname: :desc, second_lastname: :asc)
Additional if you want add a column with the complete name, you can use select, using postgresql the code would be:
people = Person.order(
name: :asc, first_lastname: :desc, second_lastname: :asc
).select(
"*, concat(name,' ', first_lastname, ' ',second_lastname) as sort_name"
)
people[0].sort_name
# the sort_name can be for example "Adán Saucedo Salas"
I am trying to create a form in Acrobat. I want it to do some calculations. I got almost all of them done aside from 2.
I have an array of cells DF1 to DF78 so I need a calculation script that will give me the minimum value in that array not counting the blank ones.
In the same array of cells DF1 to DF78 I need a calculation script to find how many fields in that array have value and bring me up the number.
I already tried using the min option on the acrobat DC and selecting the fields. Ii want to look at DF1 to DF78. However, it always shows 0 because it's counting the empty fields as well.
I tried looking online, but all the scripts that they show are very confusing. I can't find where to put the array in there.
I wish I had a script to put it in here... sorry.
I have fields DF1 to DF78 so a total of 78 fields, and I need to find the minimum value in that array not including the fields that are blank.
Another script for the same fields DF1 to DF78 needs to count how many of the fields actually have data ex: DF1, DF2, DF3 had data on it and the rest are empty so it should display the number 3 because 3 of the 78 fields have data in them.
I hope somebody can help me with this.
This should work... Add it to the calculate action of a new hidden field you want the numbers to show up. Fix the names on the last two lines first.
valueArray = [];
for (var i = 1; i <= 78 ; i++) {
//Get the fieldvalue by assembling the name with the prefix and the number increment
var fieldVal = this.getField("DF"+i).value;
//Acrobat field values are never null. The value of a blank field is an empty string
if (fieldVal != "") {
//Add non-empty field values to an Array.
valueArray.push(fieldValue);
}
}
// Get the minimum value in the array.
var minValue = Math.min.apply(null, valueArray);
// Get the number of non-blank fields.
var nonBlankFields = valueArray.length;
this.getField("RESULT FOR YOUR 1st QUESTION FIELD NAME HERE").value = minValue;
this.getField("RESULT FOR YOUR 2nd QUESTION FIELD NAME HERE").value = nonBlankFields;
I have a dictionary of phone numbers where number is Key and country is value. I want to update the key and add country code based on value country. I tried to use the map function for this:
print('**Exmaple: Update phone book to add Country code using map function** ')
user=[{'952-201-3787':'US'},{'952-201-5984':'US'},{'9871299':'BD'},{'01632 960513':'UK'}]
#A function that takes a dictionary as arg, not list. List is the outer part
def add_Country_Code(aDict):
for k,v in aDict.items():
if(v == 'US'):
aDict[( '1+'+k)]=aDict.pop(k)
if(v == 'UK'):
aDict[( '044+'+k)]=aDict.pop(k)
if (v == 'BD'):
aDict[('001+'+k)] =aDict.pop(k)
return aDict
new_user=list(map(add_Country_Code,user))
print(new_user)
This works partially when I run, output below :
[{'1+952-201-3787': 'US'}, {'1+1+1+952-201-5984': 'US'}, {'001+9871299': 'BD'}, {'044+01632 960513': 'UK'}]
Notice the 2nd US number has 2 additional 1s'. What is causing that?How to fix? Thanks a lot.
Issue
You are mutating a dict while iterating it. Don't do this. The Pythonic convention would be:
Make a new_dict = {}
While iterating the input a_dict, assign new items to new_dict.
Return the new_dict
IOW, create new things, rather than change old things - likely the source of your woes.
Some notes
Use lowercase with underscores when defining variable names (see PEP 8).
Lookup values rather than change the input dict, e.g. a_dict[k] vs. a_dict.pop(k)
Indent the correct number of spaces (see PEP 8)
Under the locations table are some data like name, longitude, latitude, etc. From the result on the table(attached image), instead of using the UID for Location Name, I'll use the "name" of the location which is under that child. The structure of my locations table is on the picture too.
How can I convert the "location_id" to "name" on the table. Instead of me putting the generated ID on the "Location Name", I'll replace it with the actual "name" which is "Luneta Park".
Thanks!
Try
locationsHistoryCount.push({
location_name : location.val().name,
historyCount : visitCount
})
You have already used val() in history.val().location_id so similarly use it for locations table too.
Also please post the code instead of snapshot of it.
fixed it using this:
locations.forEach((location) => {
if(location.val().location_id === histories.val().location_id){
locationName = location.val().name;
}
});
then pushed it:
locationsHistoryCount.push({locationName: location.val().name, historyCount: visitCount});