Hello,
I'm working on a voting app and my data source is a SP list. I have 2 columns: Score and Place. I need to sort the score column and record a number in place column starting from 1 for the largest score. My final goal is to find first, second and third largest scores. I would appreciate any suggestion to achieve to this goal.
Thanks
Solved! Go to Solution.
hi @aliasadivet
all good lets do this step by step
Step 1: DataSource
I will create one that will replicate the type of data you have but in your case it will be a SharePoint List.
Add a button to you canvas and add this code to the OnSelect of the button
//creating data for the example. in your case this will be your sharepoint list
//5 entries: 1, 8, 11, 12, 8 with place being empty colRawData will be your SharePoint Data
ClearCollect(colRawData,
{score:1,place:""},
{score:8,place:""},
{score:11,place:""},
{score:12,place:""},
{score:8,place:""}
)
Add a datatable and set the data source Items = colRawData
Edit the Fields and add both columns, score and place
Below is a graphic of the datatabel selected of its data source and Fields
Once the fields has been added the data table ill display the follow: (the score with blank place)
Step 2: Sort data
Lets sort the data in descending order to get the high to low score.
Add another button and set the OnSelect = ClearCollect(colSortedData,Sort(colRawData, score, Descending))
//sort the data to have the first rown the highest score etc...
ClearCollect(
colSortedData,
Sort(colRawData, score, Descending)
)
Copy and Paste the datatable in above step and change the datasource to colSortedData. notice the second table is now sorted large to small.
Step 3: Rank the data
we need to run through all the rows and give them a rank, we know it is descending order.
Add another button and add set the OnSelect = ClearCollect(colTemp,colSortedData);
ForAll(colTemp,Patch(colSortedData,ThisRecord,{place:Max(colSortedData,place)+1}))
"this temp collection i neglected to share earlier - sorry for that"
//create the tem[porary collection
ClearCollect(
colTemp,
colSortedData
);
ForAll(
colTemp,
Patch(
colSortedData,
ThisRecord,//thisrecord refers to the current record
{
place: Max(
colSortedData,
place
) + 1
}
)
)
the data is ranked
Now lets put it all together in one button
//sort the data to have the first rown the highest score etc...
ClearCollect(
colSortedData,
Sort(colRawData /*your sharepoint linst here*/, score, Descending)
);
//create the tem[porary collection
ClearCollect(
colTemp,
colSortedData
);
ForAll(
colTemp,
Patch(
colSortedData,
ThisRecord,//thisrecord refers to the current record
{
place: Max(colSortedData,place) + 1
}
)
)
Hope that is more explanatory,
R
Ps will you have a situation where there may be more than one score of the same value?
hi @aliasadivet
Consider you have a datasource with columns score and place:
To get the first 3 places in descending order would be like this.
FisrtN(Sort(yourSharePoint, Score, Descending), 3)
Example
Left Gallery Items = Sort(yourSharePoint, Score, Descending)
Right Gallery Items = FisrtN(Sort(yourSharePoint, Score, Descending), 3)
Column: place | score
Hope it helps,
R
@rubin_boer Thanks for the help.
I need to generate the place number based on the score, i.e. once the scores are sorted, the place for largest score be filled with 1, second largest score with 2 and so on.
Thanks
@aliasadivet so initially your table will only have scores right
@aliasadivet ok here we go:
from sharepoint you only get scores:
Something like this
Scores:
You create a collection where you sort this as previously (above is already sorted): Items = Sort(yourSharePoint, Score, Descending). Notice that the place is empty
The following code will populate the place as you wish
ForAll(colTemp,Patch(colRank, ThisRecord , {place: Max(colRank,place) + 1}))
a temporary collection to patch all the items in your collection. it is important that this only runs once to a specific set. In other words after your score is done you can run this, else you can add some code to set all the places to place to 0 but lets keep it simple for now. add the code to a buttons on select.
Result
The place i snot added.
to get the top 3 places you can do the following:
Add three labels
label 1 = Index(Sort(yourCollection, score, Descending),1).score
label 2 = Index(Sort(yourCollection, score, Descending),2).score
label 3 = Index(Sort(yourCollection, score, Descending),3).score
Here is demo
Hope it helps,
R
@rubin_boer I appreciate your time Rubin. I created the collection with sorted scores, and as you said, the place is empty. Now, I need to insert a button and add this code: ForAll(colTemp,Patch(colRank, ThisRecord , {place: Max(colRank,place) + 1})) in its OnSelect. I couldn't figure out where do I need to use the collection with empty place column. Do I need to define colTemp and colRank variables? And using "ThisRecord" in the code, points to what record. Sorry, I'm confused.
hi @aliasadivet
all good lets do this step by step
Step 1: DataSource
I will create one that will replicate the type of data you have but in your case it will be a SharePoint List.
Add a button to you canvas and add this code to the OnSelect of the button
//creating data for the example. in your case this will be your sharepoint list
//5 entries: 1, 8, 11, 12, 8 with place being empty colRawData will be your SharePoint Data
ClearCollect(colRawData,
{score:1,place:""},
{score:8,place:""},
{score:11,place:""},
{score:12,place:""},
{score:8,place:""}
)
Add a datatable and set the data source Items = colRawData
Edit the Fields and add both columns, score and place
Below is a graphic of the datatabel selected of its data source and Fields
Once the fields has been added the data table ill display the follow: (the score with blank place)
Step 2: Sort data
Lets sort the data in descending order to get the high to low score.
Add another button and set the OnSelect = ClearCollect(colSortedData,Sort(colRawData, score, Descending))
//sort the data to have the first rown the highest score etc...
ClearCollect(
colSortedData,
Sort(colRawData, score, Descending)
)
Copy and Paste the datatable in above step and change the datasource to colSortedData. notice the second table is now sorted large to small.
Step 3: Rank the data
we need to run through all the rows and give them a rank, we know it is descending order.
Add another button and add set the OnSelect = ClearCollect(colTemp,colSortedData);
ForAll(colTemp,Patch(colSortedData,ThisRecord,{place:Max(colSortedData,place)+1}))
"this temp collection i neglected to share earlier - sorry for that"
//create the tem[porary collection
ClearCollect(
colTemp,
colSortedData
);
ForAll(
colTemp,
Patch(
colSortedData,
ThisRecord,//thisrecord refers to the current record
{
place: Max(
colSortedData,
place
) + 1
}
)
)
the data is ranked
Now lets put it all together in one button
//sort the data to have the first rown the highest score etc...
ClearCollect(
colSortedData,
Sort(colRawData /*your sharepoint linst here*/, score, Descending)
);
//create the tem[porary collection
ClearCollect(
colTemp,
colSortedData
);
ForAll(
colTemp,
Patch(
colSortedData,
ThisRecord,//thisrecord refers to the current record
{
place: Max(colSortedData,place) + 1
}
)
)
Hope that is more explanatory,
R
Ps will you have a situation where there may be more than one score of the same value?
@rubin_boer Rubin, I really appreciate your time and clear explanation! It works exactly the way I wanted.
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