This is my first ever question on StackOverflow so I hope I am able to do it properly.
I am trying to achieve a solution to a problem that I have been trying for a few weeks now. My needs are as follows:
Administrator able to save files in Google Drive in a specific folder for the app.
This folder will have subfolders and each subfolder can have files (Docs, Slides, Drawings, Spreadsheets).
An excel spreadsheet that will list all these files with their ID, can be generated using Apps Script easily.
The spreadsheet can then be imported into Flutter App. Example here.
Now when a user selects the file list item in the Flutter App, I want to show the selected file content inside the flutter app without having to download it as separate file. (This is where I am having issues).
I have tried and managed to get the blob of the file, but that's where I get stuck. I don't know how to use that blob in Flutter.
Here is my trial Google Apps Script code: (its not complete but just an example to get blob)
function doGet(e){
//var params = JSON.stringify(e);
var appFolderId = "1HsJZytwvtNZJK9x7Q6AZNosN6_addjLo";
//var appFolderName = "";
var appFolder = DriveApp.getFolderById(appFolderId);
Logger.log(appFolder.getName());
var filesJsonString = JSON.stringify(getFilesInFolder(appFolder));
Logger.log(filesJsonString);
//return ContentService.createTextOutput('Hello, world!');
}
//Return json object containing array of file objects.
function getFilesInFolder(folder) {
var filesArray = [];
var files = folder.getFiles();
while(files.hasNext()){
var fileObj = {};
var file = files.next();
fileObj['id'] = file.getId();
fileObj['mime'] = file.getMimeType();
fileObj['name'] = file.getName();
fileObj['desc'] = file.getDescription();
fileObj['url'] = file.getUrl();
fileObj['download'] = file.getDownloadUrl();
var fileBlob = file.getBlob();
var raw = fileBlob.getDataAsString();
fileObj['blob'] = raw;
filesArray.push(fileObj);
}
return {filesArray};
}
The result of this code is as follows, (if you scroll to the right it will show a huge blob):
[20-10-17 04:30:35:653 PDT] MyApp
[20-10-17 04:30:37:325 PDT] Logging output too large. Truncating output. {"filesArray":[{"id":"1wzR-7fWT_vA28j82scazk7jVSUnDwSjkwjvup8Ovr9k","mime":"application/vnd.google-apps.document","name":"MApp Readme","desc":null,"url":"https://docs.google.com/document/d/1wzR-7fWT_vA28j82scazSjkwjvuk7jVSUnDwp8Ovr9k/edit?usp=drivesdk","download":null,"blob":"%PDF-1.5\n%����\n2 0 obj\n<< /Linearized 1 /L 18715 /H [ 750 126 ] /O 6 /E 18440 /N 1 /T 18439 >>\nendobj\n \n3 0 obj\n<< /Type /XRef /Length 51 /Filter /FlateDecode /DecodeParms << /Columns 4 /Predictor 12 >> /W [ 1 2 1 ] /Index [ 2 24 ] /Info 11 0 R /Root 4 0 R /Size 26 /Prev 18440 /ID [<df70ed3aa3e7587759206db70489ab30><df70ed3aa3e7587759206db70489ab30>] >>\nstream\nx�cbd�g`b`8\t$���XF#��\u000eDh\u0001\t\u0016[ a�\u0000�-g`bܫ\u0000R��H1\u0001\u0000�l\u0005K\nendstream\nendobj\n \n4 0 obj\n<< /Pages 23 0 R /Type /Catalog >>\nendobj\n5 0 obj\n<< /Filter /FlateDecode /S 36 /Length 49 >>\nstream\nx�c```e``z�\u0000\u0004.s\u0018�\u0000�f\u0006b\u0016�(H-\u001830j1�10\u0018��6�r_`\u0000\u0000�i\u00054\nendstream\nendobj\n6 0 obj\n<< /Annots [ 14 0 R 15 0 R 16 0 R 17 0 R 18 0 R 19 0 R 20 0 R 21 0 R 22 0 R ] /Contents 7 0 R /MediaBox [ 0 0 596 843 ] /Parent 23 0 R /Resources << /ExtGState << /G3 12 0 R >> /Font << /F4 13 0 R >> /ProcSet [ /PDF /Text /ImageB /ImageC /ImageI ] >> /StructParents 0 /Type /Page >>\nendobj\n7 0 obj\n<< /Filter /FlateDecode /Length 1013 >>\nstream\nx��mk�0\u0010���S����t��\u0003�A۴}�\u0011�\u0007�� �u�\u001f&;m,��\u0013۩�Y�#IO9��$�O\u000f�U&��l�\u0013٩o\u000f�秊H�Y#:I��\u001e4_?�_�L\u00071�R�No�_V��}�U�\u000f�����S��:Cbe-����ŒlX'2\u0014�/���݇���9��_a�%�WTۻ���\u001a�}hr=g�$���>\u001a��'���$\u001d�xíC�\u0002�\u0015\u0004�(Z��\\�����x��+\\u\u0005N�x���\u001a�+�ڊ�&�\u001a\u0012��2�� 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Interestingly, the contents of this file are just a few lines of text and links in a Google Doc, but the blob is huge.
Script.google.com - Script project created
https://developers.google.com/apps-script/guides/content
https://developers.google.com/apps-script/guides/services/authorization
https://developers.google.com/apps-script/guides/web
https://developers.google.com/apps-script/guides/web#permissions
https://developers.google.com/apps-script/guides/services/advanced#enabling_advanced_services
https://developers.google.com/apps-script/advanced/drive
https://developers.google.com/apps-script/reference/drive
https://developers.google.com/apps-script/guides/services/quotas
At this stage, I am wondering if I am on the right track. I know Flutter can use Firebase as a database to store app data, that might be easy to search, filter and scale up. But, from an Admin point of view, it's easier for someone to add files to Google drive. Flutter cannot directly show Admin's Google Drive files using Google Drive API (it gives access to logged in user's drive files instead). Hence, I am taking Google Apps Script approach.
Edit:
I found another page that does similar thing but relies on web browser to show file or allow download. Is it possible to display blob in Flutter app itself? Or a dependency that will automatically show Google Drive file in Flutter app as is.
Flutter web - display pdf file generated in application. (Uint8List format)
Related
I am running a PS script to create an excel file with some text and the corresponding pictures to the text. Till now everything works as expected but when i want to choose the right column for the pictures with a counter something weird happens.
Before the if statement the counter behaves like it should, but as soon i let it output the counter inside the if statement the counter does something weird what i cannot explain.
Part of the Script
pictures is an list of file names
rows_sorted is an list of camera names
foreach ($picture in $pictures) {
foreach ($row in $rows_sorted) {
$xlcounter += 1
Write $xlcounter -> counter looks fine
if ($picture -match $row ) {
$live_picture = "C:\Snapshots\pictures\$picture"
$image = [System.Drawing.Image]::FromFile($live_picture)
$sheet | Add-ExcelImage -Image $image -Row $xlcounter -Column 4 -ResizeCell
$image.Dispose()
Write $xlcounter -> Weird things happen
}
}
}
Example output of counter outside the if statement:
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Example output of counter inside the if statement:
2 205 408 611 814 1017 1220 1423 1626 1829 2032 2235 2438 2641 2844 3047 3251 3454 3657 3860 4063
I tried to rename the counter because the same name was used in a few lines before, but that did not help either.
The Microsoft Windows Dev Center Dashboard lets me collect stack traces from failures in my native desktop app in the wild.
Unfortunately, minidumps aren't avaialble. I just get a TSV file that (sometimes) has a stack trace in it, which looks like this:
Frame Image Function Offset
0 MyApp 0x2F59A1
1 MyApp 0x11CEA8
2 MyApp 0x11AE74
3 MyApp 0x151289
4 MyApp 0x2A686
5 MyApp 0x180720
6 MyApp 0x1807B6
7 MyApp 0x2E875A
8 MyApp 0x2E8882
9 kernel32 BaseThreadInitThunk 0x24
10 ntdll __RtlUserThreadStart 0x2B
11 ntdll _RtlUserThreadStart 0x1B
To make this uesful, I load the matching binary in WinDbg, figure out the offset plus the base address, and unassemble at the resulting address. If my app loads at 0x00400000, I add 0x2F59A1 to it and get 0x006F59A1. Unassembling there shows me the return address of that stack frame, so I can get some idea of what the crash is about.
Is there a better way? How can I request minidumps from Dev Center? (Microsoft Support says I just can't. Really?) Is there a script to convert at TSV file a usable stack trace so I don't manually evaluate each stack frame? Is there some other way?
I don't know if you can get a .dmp or not google says you can not get one from dash board
the answer below is a modified version of a script
I once used it to disassemble # .map file offsets improvise if needed
it takes the offsets from the column using pandas
creates a command string and uses subprocess to disassemble at that offset
i assume the tsv is a tab seperated value file if not you have some tweaking to do
assuming tab seperated file with data like below
Frame Image Function Offset
0 calc 0x1012
0 calc 0x1015
you can automate the process with some for loops in the code below
edit since i do two subprocess calls the offsets for both forward and backward disassembly are different (ASLR effect )
:\>cat Untitled.py
import pandas as pd
df = pd.read_csv("tsv.txt" , delimiter='\t')
print df
offset = df.Function.unique()[1]
print offset
import subprocess
cmdline = "cdb -c \"ub calc+"+offset+";q\" calc.exe | tail"
print cmdline
output = subprocess.check_output(cmdline ,shell=True )
print output
cmdline = "cdb -c \"u calc+"+offset+";q\" calc.exe | tail"
print cmdline
output = subprocess.check_output(cmdline ,shell=True )
print output
:\>python Untitled.py
Frame Image Function Offset
0 0 calc 0x1012 NaN
1 0 calc 0x1015 NaN
0x1015
cdb -c "ub calc+0x1015;q" calc.exe | tail
calc!_imp__SHGetFolderPathW+0x1:
00f31005 57 push edi
00f31006 1f pop ds
00f31007 7629 jbe calc!_imp__GdipCloneImage+0x2 (00f31032)
00f31009 a1237683dd mov eax,dword ptr ds:[DD837623h]
00f3100e 27 daa
00f3100f 7646 jbe calc!_imp__GdipDeleteGraphics+0x3 (00f31057)
00f31011 1e push ds
00f31012 197600 sbb dword ptr [esi],esi
quit:
cdb -c "u calc+0x1015;q" calc.exe | tail
calc!⌂SHELL32_NULL_THUNK_DATA+0x1:
009b1015 0000 add byte ptr [eax],al
009b1017 007a41 add byte ptr [edx+41h],bh
009b101a 5f pop edi
009b101b 7700 ja calc!⌂SHLWAPI_NULL_THUNK_DATA+0x1 (009b101d)
009b101d 0000 add byte ptr [eax],al
009b101f 005fa1 add byte ptr [edi-5Fh],bl
009b1022 687449a568 push 68A54974h
009b1027 744a je calc!_imp__GdiplusShutdown+0x3 (009b1073)
quit:
:\>
I'm quite new with Matlab and I've been searching, unsucessfully, for the following issue: I have an unstructure txt file, with several rows I don't need, but there are a number of rows inside that file that have an structured format. I've been researching how to "load" the file to edit it, but cannot find anything.
Since i don't know if I was clear, let me show you the content in the file:
8782 PROJCS["UTM-39",GEOGC.......
1 676135.67755473056 2673731.9365976951 -15 0
2 663999.99999999302 2717629.9999999981 -14.00231124135486 3
3 709999.99999999162 2707679.2185399458 -10 2
4 679972.20003752434 2674637.5679516452 0.070000000000000007 1
5 676124.87132483651 2674327.3183533219 -18.94794942571912 0
6 682614.20527054626 2671000.0000000549 -1.6383425512446661 0
...........
8780 682247.4593014461 2676571.1515358146 0.1541080392180566 0
8781 695426.98657108378 2698111.6168302582 -8.5039945992245904 0
8782 674723.80100125563 2675133.5486935056 -19.920312922947179 0
16997 3 21
1 2147 658 590
2 1855 2529 5623
.........
I'd appreciate if someone can just tell me if there is the possibility to open the file to later load only the rows starting with 1 to the one starting with 8782. First row and all the others are not important.
I know than manually copy and paste to a new file would be a solution, but I'd like to know about the possibility to read the file and edit it for other ideas I have.
Thanks!
% Now lines{i} is the string of the i'th line.
lines = strsplit(fileread('filename'), '\n')
% Now elements{i}{j} is the j'th field of the i'th line.
elements = arrayfun(#(x){strsplit(x{1}, ' ')}, lines)
% Remove the first row:
elements(1) = []
% Take the first several rows:
n_rows = 8782
elements = elements(1:n_rows)
Or if the number of rows you need to take is not fixed, you can replace the last two statements above by:
firsts = arrayfun(#(x)str2num(x{1}{1}), elements)
n_rows = find((firsts(2:end) - firsts(1:end-1)) ~= 1, 1, 'first')
elements = elements(1:n_rows)
I have since several days problems with reading my measurement csv files and make some simple calculations. I hope someone can help me.
My Aim
Read CSV data file, as followed:
Open with Excel:
date: 20140202 time: 083736 Cycles total: 74127 T_zer: 56 T_op1: 90.000
Actu state: stoppes ! T1: -23 T2: -12 T3: -32 T4: -65
*-*
324203 0 34724 0 0 0 2
431040 0 0 0 0 0 1
230706 0 0 0 0 0 1
340810 0 0 0 0 0 1
..............
....
.
-->Here 1st question: If I open with editor, I can only see one delimiter, its ";". But there must be two? One for row , one for columns? How can Excel separate it correctly into row and col, if there is only ";" ?
However... now I tried to csvread this file with octave. There I get it into octave, but everything only in one column:/. For me it would be very comfortable Octave could read it into a 7x X Matrix. In this case I can handle the data easy.
Here my Code:
clc
clear all
[fname,pname] =uigetfile();
fname;
extra="/";
pname;
b=strcat(pname,extra,fname);
m = csvread(b);
Result:
m as double with 4003x1. 4003 is corretct, but everything in one colum:/
m =
0
0
0
454203
561040
340706
I tried now to handle this problem up to several days, but no result.
Not a Octave expert, but looks like you can use the dlmread function to read a CSV files, it has many parameters which can help you read the file correctly.
start reading the data from row X (and not from the start)
only have Y columns
defined the separator between fields
A college of mine has set up a page with tt_news single, list and archive.
He has an archive list in a sidebar on all these pages and it lists the years from each news as it should.
I can click on each year and view the news from that year fine when logged in.
But when I log out the date is not changed. It stays at what date was first clicked when the "SHOW ARCHIVED" setting was set.
The url changes but the page doesn't...
I have:
tt_news v2.5.2
Typo3 v4.5.4
CoolURI v1.0.26
CoolUri conf: http://pastebin.com/9xTmVyPn
tt_news typoscript:
plugin.tt_news {
templateFile = fileadmin/templates/ext/blog.html
displayArchivedInLatest = 1
datetimeMinutesToArchive = 1
enableArchiveDate = 0
# page with archive list
archiveTypoLink.parameter = 286
# page with single view
singlePid = 285
# page with list view
backPid = 284
# page with db entries
pid_list = 35
displaySingle.date_stdWrap.strftime = %e:e %B %Y
displayList.date_stdWrap.strftime = %e:e %B %Y
pageBrowser {
tableParams >
}
summary {
wordWrap = 105 | ... | 1
}
imgMaxWidth = 600
}
Perhaps you have an caching issue? Just test it via www.example.com/your/url/?no_cache=1 If that works if you are not logged in, you have an caching issue.