I am trying to delete a folder's all documents, at interface expression mode, how to write the code and how to express the document name at a!deleteDocument(document:??????).
Thanks
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As a!deleteDocument can only delete a single document, you will need to create a process to delete multiple documents.
Documents in Appian are referenced by their ID either in a variable of type Integer or of type Document.
a!localVariables( local!oldfile: a!refreshVariable(folder(31338, "documentChildren")), local!file: a!refreshVariable(folder(31338, "documentChildren")), local!deletefile, local!oldfilelist, local!testfile:rule!testfilecasttype(), { a!fileUploadField( label: "File Upload", labelPosition: "ABOVE", target: cons!fileUploadConstant, maxSelections: 10, value: local!file, saveInto: { a!save( target: local!oldfile, value: folder(31338, "documentChildren") ), /*if(length(local!oldfile)=0,{},a!deleteDocument(document:local!oldfile)), */ a!save(target: local!file, value: save!value), a!save(target:local!oldfilelist,value:a!forEach(items:local!oldfile, expression:tostring(fv!item) /*extract(left(fv!item,20),":","]"),*/ )), a!save( target: local!deletefile, value: a!forEach( items: local!oldfile, expression: if( contains(local!file, fv!item) = true(), {}, fv!item ), ) ), a!save(target:local!testfile.file,value:local!oldfilelist), a!save( target: ri!file.file, value: a!forEach(items: local!file, expression: fv!item, ) ), }, fileNames: { fv!file.name }, validations: {}, uploadMethods: "CHOOSE_FILE" ), a!buttonArrayLayout( buttons: { a!buttonWidget( label: "Submit", style: "PRIMARY", submit: true(), loadingIndicator: true(), saveInto:{ /*if(*/ /*or(*/ /*length(a!flatten(local!deletefile)) = 0,*/ /*len(local!deletefile) = 0*/ /*),*/ /*{},*/ /*a!deleteDocument(document: local!deletefile)*/ /*),*/ /*a!writeToMultipleDataStoreEntities(*/ /*valuesToStore: {*/ /*a!entityData(entity: cons!testfileconstant,data:local!testfile),*/ /*}*/ /*),*/ a!startProcess( processModel: cons!wangtestfileuploadprocessmodel, processParameters: { deletefile:local!deletefile, testfile:local!testfile, } ), } ) }, align: "START" ), a!milestoneField( label:"phase", labelPosition: "ABOVE", steps: cons!wangtestphase, links: {}, active: 2, ) } )
local!deletefile shows are multiple, but once get into processModel it changes to be single always, though i set property values and others to multiple
Did you set the process variable deletefile to be a multiple in the model?
The first as original one can't set to be multiple, so i create a new one at second set it to multiple but not works
You cannot just add inputs and expect this to work!!!
This node can only delete a single file. To delete multiple you need to execute the node multiple times.
Which one is the thing to set nodes? user input task?
I do not understand your question. What would a user input task help?
But I assume that this is what you are looking for: docs.appian.com/.../Process_Model_Recipes.html
where to find the multiple instances activity, it looks like user input task
docs.appian.com/.../Process_Node_and_Smart_Service_Properties.html