[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

Val K, yes, you are right. I do like you told and now all work. Moreover I 
made conclusion of error and now it work right too, previosly I have had 
error only one of type.
Thank you!

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[web2py] Re: How to work with files in multipart/form-data?

[Val K]

If want to validators do their stuff, just try   
db_app.doc_images.validate_and_insert(... , file=doc)

db_app.doc_images.file.store - just a helper that sanitizes the filename, 
adds a unique prefix and saves the file + returns its real (OS) name
So,  in your example, the  validation happens too late.












On Wednesday, November 21, 2018 at 12:29:07 PM UTC+3, Константин Комков 
wrote:
>
> loadDoc = db_app.doc_images.validate_and_insert(person='{0} {1} 
> {2}'.format(session.abit_f,session.abit_i,session.abit_o),file=db_app.doc_images.file.store(doc,doc.filename))
> I see another expansion in uploads yet. And loadDoc.errors.as_dict() 
> contain {'file','enter valid filename'}.
>

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

loadDoc = db_app.doc_images.validate_and_insert(person='{0} {1} 
{2}'.format(session.abit_f,session.abit_i,session.abit_o),file=db_app.doc_images.file.store(doc,doc.filename))
I see another expansion yet. And loadDoc.errors.as_dict() contain 
{'file','enter valid filename'}.

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

>
> how did they (.exe, .html ...) get there?

When I tested loading documents I heve tried to load test.html from site of 
course. After that I cheked table db_app.doc_images and there isn't record 
with that file and after that I cheked folder uploads and unfortunately 
found test.html.
>
> There is no any hard link between db and the folder 'uploads', you can 
> kill all files in the folder, but web2py will still think that they are in 
> it.

Of course I know it. It's logically.

> + read the book and feel the difference between just 'insert' and 
> 'validate_and_insert'

As I thought to write requires will be enought, like that:

Field 
('file',
 'upload',label='Документ', requires=[IS_UPLOAD_FILENAME 
(extension='^(pdf|tiff|png|bmp|jpeg|jpg)$'),IS_LENGTH
 (10485760, 1024)]),

That code worked with crud form and I couldn't load file test.html.


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[web2py] Re: How to work with files in multipart/form-data?

[Val K]

how did they (.exe, .html ...) get there?
There is no any hard link between db and the folder 'uploads', you can kill 
all files in the folder, but web2py will still think that they are in it.
+ read the book and feel the difference between just 'insert' and 
'validate_and insert'



On Friday, November 16, 2018 at 4:16:18 PM UTC+3, Константин Комков wrote:
>
> I found one unpleasant mistake. In model:
>
> db_app.define_table('doc_images',
> Field 
> ('person',label='ФИО',writable=False),
> Field 
> ('file', 
> 'upload',label='Документ', requires=[IS_UPLOAD_FILENAME 
> (extension='^(pdf|tiff|png|bmp|jpeg|jpg)$'),IS_LENGTH
>  (10485760, 1024)]),
> format = '%(title)s')
>
>
> requires don't work for folder uploads. In ab_app.doc_images there are not 
> record with .exe, .html etcetra, but in uploads I can see files with any 
> expansion.
>

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

I found one unpleasant mistake. In model:

db_app.define_table('doc_images',
Field 
('person',label='ФИО',writable=False),
Field 
('file', 
'upload',label='Документ', requires=[IS_UPLOAD_FILENAME 
(extension='^(pdf|tiff|png|bmp|jpeg|jpg)$'),IS_LENGTH
 (10485760, 1024)]),
format = '%(title)s')


requires don't work for folder uploads. In ab_app.doc_images there are not 
record with .exe, .html etcetra, but in uploads I can see files with any 
expansion.

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

Val K, thank you! All work.
If somebody want to upload files using one button use it:
controller:
def loadDocs():
documents = request.vars
for key in documents:
doc = documents[key]
db_app.doc_images.insert(person='{0} {1} 
{2}'.format(session.abit_f,session.abit_i,session.abit_o),file=db_app.doc_images.file.store(doc,doc.filename))
return doc.filename
view:
Прикрепить


$(function() {
var files;
function showLoadDocsInfo(data) {
console.log('In showLoadDocsInfo');
console.log(data);
}
$('#openDialog').on('change', function () {
files = this.files;
console.log('files = '+files);
if (typeof files == 'undefined' ) return;
var data = new FormData();
$.each( files, function(key, value ) {
data.append(key, value);
});
console.log('data = '+data);
jQuery.ajax({
type: "POST",
url: "loadDocs",
data: data,
//enctype: 'multipart/form-data',
cache: false,
processData: false,
contentType: false,
success: showLoadDocsInfo,
error: function(data){
console.log("error");
console.log(data);
}
});
});
$('#btnOne').on('click', function() {
$('#openDialog').click();
});
});




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[web2py] Re: How to work with files in multipart/form-data?

[Val K]

Well, it's strange ... web2py should read filename from passed doc, but it 
seems it does not do it. Try to pass doc.filename as second arg to .store()

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

Controller:
>
> def loadDocs():
> documents = request.vars
> for key in documents:
> doc = documents[key]
> db_app.doc_images.insert(person='{0} {1} 
> {2}'.format(session.abit_f,session.abit_i,session.abit_o),file=db_app.doc_images.file.store(doc))
> return doc.filename
>

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[web2py] Re: How to work with files in multipart/form-data?

[Val K]

Show controller code pls

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

doc.filename = flower.jpg
result file in uploads - doc_images.file.94aa36d88e4a9c73.4e6f6e65.txt
I want to get - doc_images.file.94aa36d88e4a9c73.4e6f6e65.jpg

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[web2py] Re: How to work with files in multipart/form-data?

[Val K]

Check what does doc.filename look like

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

Val K, thank you! It's big progress.
I change in your code that string:

> data.append(key , value );

And I had error in that string:

> db_app.doc_images.insert(person='{0} {1} {2}'.format(session.abit_f,
> session.abit_i,session.abit_o),file=*db_app*.doc_images.file.store(doc))

I see file in uploads, but it is like text file, but I loaded jpg. 
When I changed .txt on .jpg I saw picture. What should I do for loading 
file with initial expansion?

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[web2py] Re: How to work with files in multipart/form-data?

[Val K]

oops! `serialize` is really bad idea;)

this should work:
 $.each( files, function( key, value ) {
data.append( 'file_' + key , value ); //  because key = 0, 
1, 2 ... - or is that what you want? 
});

jQuery.ajax({
type: "POST",
url: "loadDocs",
data: data, // nothing else
cache: false,
processData: false,
contentType: false,
success: showLoadDocsInfo
});

def loadDocs():
documents = request.vars
for key in documents: # key = file_0, file_1 ...
doc = documents[key] #  - cgi.FieldStorage
db_app.doc_images.insert(person='{0} {1} 
{2}'.format(session.abit_f,session.abit_i,session.abit_o),file=db.doc_images.file.store(doc))
return images # - ???




On Tuesday, November 13, 2018 at 6:56:00 PM UTC+3, Константин Комков wrote:
>
> data: {data: JSON.stringify(...)}
>>
> not work
>
> As I understood serialize working only with form. I don't heve form ↑.  
> Can we use serialize for file?
>

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

>
> data: {data: JSON.stringify(...)}
>
not work

As I understood serialize working only with form. I don't heve form ↑.  Can 
we use serialize for file?

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[web2py] Re: How to work with files in multipart/form-data?

[Val K]

Try in ajax
data: {data: JSON.stringify(...)}

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[web2py] Re: How to work with files in multipart/form-data?

[Константин Комков]

Hello, help me please. I don't know what I need to do on server in 
controller
def loadDocs():
documents = request.vars.data
for i in documents:
stream = open(i.file, 'rb')
db_app.doc_images.insert(person='{0} {1} 
{2}'.format(session.abit_f,session.abit_i,session.abit_o),file=db.doc_images.file.store(stream,
 
i.file))
return images
Why is variable documents equal None?
Error: ('NoneType' object is not iterable)

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