tinker | hotfix solution library for Android, it supports dex | Chat library

by Tencent Java Version: v1.9.14.19 License: Non-SPDX

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kandi X-RAY | tinker Summary

tinker is a Java library typically used in Telecommunications, Media, Telecom, Messaging, Chat, Gradle applications. tinker has no bugs, it has no vulnerabilities, it has build file available and it has high support. However tinker has a Non-SPDX License. You can download it from GitHub, Maven.

Tinker is a hot-fix solution library for Android, it supports dex, library and resources update without reinstalling apk.

Support

Quality

Security

License

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kandi-support Support

tinker has a highly active ecosystem.
It has 16260 star(s) with 3260 fork(s). There are 712 watchers for this library.
There were 2 major release(s) in the last 12 months.
There are 430 open issues and 1064 have been closed. On average issues are closed in 59 days. There are 8 open pull requests and 0 closed requests.
It has a negative sentiment in the developer community.
The latest version of tinker is v1.9.14.19

tinker Support

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tinker Support

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quality kandi Quality

tinker has 0 bugs and 0 code smells.

tinker Quality

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tinker Quality

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security Security

tinker has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
tinker code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

tinker Security

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tinker Security

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license License

tinker has a Non-SPDX License.
Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

tinker License

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tinker License

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build Reuse

tinker releases are available to install and integrate.
Deployable package is available in Maven.
Build file is available. You can build the component from source.
Installation instructions, examples and code snippets are available.

tinker Reuse

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tinker Reuse

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Top functions reviewed by kandi - BETA

kandi has reviewed tinker and discovered the below as its top functions. This is intended to give you an instant insight into tinker implemented functionality, and help decide if they suit your requirements.

Makes an instruction visitor visit the instruction .
Tries to load patch files .
Returns instruction format .
This method parses the intent result and returns true if it is a main process .
difference between old and newFile
Extract the dex files from the context
Returns true if the dex has the same debug info
Check if an excluded class has been modified by another dex .
This method tries to make sure that the patch is valid
Extract resource info .

tinker Key Features

Tinker is a hot-fix solution library for Android, it supports dex, library and resources update without reinstall apk.

tinker Examples and Code Snippets

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Getting started

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buildscript {
    dependencies {
        classpath ('com.tencent.tinker:tinker-patch-gradle-plugin:1.9.1')
    }
}

building patch

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bash build_patch_dexdiff.sh old=xxx new=xxx

packaging the patch

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&lt;issue id="arkHot"&gt;
   &lt;path value="arkHot"/&gt;         // path of patch
   &lt;name value="patch.apk"/&gt;      // name of patch
&lt;/issue&gt;

VBA code to return multiple lookup values in one comma separated works but crashes if there's an empty cell

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Sub main()

    ' ws is the worksheet object referencing "Sheet1"
    Dim ws As Worksheet: Set ws = ThisWorkbook.Worksheets("Sheet1")
                                
                                      ' Top Left (r, c)          (r, c) Bottom Right
    Dim rng As Range: Set rng = ws.Range(ws.Cells(1, 1), ws.Cells(6, 6))

    Dim lookupValue As String: lookupValue = ""

    Dim outStr As String: outStr = rangeValuesToString(rng, lookupValue)

    Debug.Print outStr

End Sub

Function rangeValuesToString(rng As Range, lookupValue As String) As String

    Dim topRow As Integer: topRow = rng.Row
    Dim botRow As Integer: botRow = rng.Row - 1 + rng.Rows.Count

    Dim leftCol As Integer: leftCol = rng.Column
    Dim rightCol As Integer: rightCol = rng.Column - 1 + rng.Columns.Count

    Dim i  As Integer, j As Integer
    Dim outStr As String: outStr = ""

    ' Iterates through each column moving left to right
    For i = leftCol To rightCol
        For j = topRow To botRow
            If rng.Cells(j, i).Value = lookupValue Then
                outStr = outStr & rng.Cells(j, i).Value & ", "
            End If
        Next j
    Next i

    rangeValuesToString = Left(outStr, Len(outStr) - 2)

End Function

-----------------------

Option Explicit

Function MultiVLookUp( _
    ByVal LookupValue As String, _
    ByVal LookupRange As Range, _
    ByVal ColumnNumber As Long, _
    Optional ByVal Char As String = ", ") _
As String
    
    If Len(LookupValue) = 0 Then Exit Function
    
    Dim lData As Variant
    Dim vData As Variant
    Dim lrCount As Long
    
    With LookupRange
        lrCount = .Rows.Count
        If lrCount = 1 Then
            ReDim lData(1 To 1, 1 To 1): lData(1, 1) = .Columns(1).Value
            ReDim vData(1 To 1, 1 To 1): vData(1, 1) _
                = .Columns(ColumnNumber).Value
        Else
            lData = .Columns(1).Value
            vData = .Columns(ColumnNumber).Value
        End If
    End With
           
    Dim r As Long
    Dim rString As String
    
    For r = 1 To lrCount
        If CStr(lData(r, 1)) = LookupValue Then
            rString = rString & CStr(vData(r, 1)) & Char
        End If
    Next r
    If Len(rString) = 0 Then Exit Function
    
    MultiVLookUp = Left(rString, Len(rString) - Len(Char))

End Function

Compiletime error while using java.util.Function#identity in Stream#flatMap(Function<T,Stream<R>>)

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List<Stream<Integer>> list = new ArrayList<>();
list.add(Stream.of( 1,2 ));
list.add(Stream.of( 3,4 ));

list.stream().flatMap( s -> s ).forEach( System.out::println );

-----------------------

List<Stream<Integer>> list = new ArrayList<>();
list.add(Stream.of( 1,2 ));
list.add(Stream.of( 3,4 ));

list.stream().flatMap( s -> s ).forEach( System.out::println );

Why does Solid.js createEffect not re-run when a signal is in a setTimeout callback?

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let Listener

function Counter() {
  const [count, setCount] = createSignal(0);

  createEffect(() => {
    Listener = thisEffect
    setTimeout(() => {
      setCount(count() + 1);
    }, 1000);
    Listener = null
  })

  return (
    <>
      {count()}
    </>
  );
}

Passing a local mutable struct into an async let binding

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var localText: [String] = ...
async let w = localText.removeLast() // error: mutation of captured var 'localText' in concurrently-executing code

func test() async throws {
    var request = URLRequest(url: URL(string:"https://httpbin.org/get")!)
    request.httpMethod = "GET" // just for example

    let task = Task { [request] in
        try await URLSession.shared.data(for: request).0
    }

    // do some more stuff in parallel

    print("Response body: \(String(data: try await task.value, encoding: .utf8) ?? "Not string")")
}

func test() async throws {
    var request = URLRequest(url: URL(string:"https://httpbin.org/get")!)
    request.httpMethod = "GET" // just for example

    let data = try await URLSession.shared.data(for: request).0

    print("Response body: \(String(data: data, encoding: .utf8) ?? "Not string")")
}

-----------------------

var localText: [String] = ...
async let w = localText.removeLast() // error: mutation of captured var 'localText' in concurrently-executing code

func test() async throws {
    var request = URLRequest(url: URL(string:"https://httpbin.org/get")!)
    request.httpMethod = "GET" // just for example

    let task = Task { [request] in
        try await URLSession.shared.data(for: request).0
    }

    // do some more stuff in parallel

    print("Response body: \(String(data: try await task.value, encoding: .utf8) ?? "Not string")")
}

func test() async throws {
    var request = URLRequest(url: URL(string:"https://httpbin.org/get")!)
    request.httpMethod = "GET" // just for example

    let data = try await URLSession.shared.data(for: request).0

    print("Response body: \(String(data: data, encoding: .utf8) ?? "Not string")")
}

-----------------------

var localText: [String] = ...
async let w = localText.removeLast() // error: mutation of captured var 'localText' in concurrently-executing code

func test() async throws {
    var request = URLRequest(url: URL(string:"https://httpbin.org/get")!)
    request.httpMethod = "GET" // just for example

    let task = Task { [request] in
        try await URLSession.shared.data(for: request).0
    }

    // do some more stuff in parallel

    print("Response body: \(String(data: try await task.value, encoding: .utf8) ?? "Not string")")
}

func test() async throws {
    var request = URLRequest(url: URL(string:"https://httpbin.org/get")!)
    request.httpMethod = "GET" // just for example

    let data = try await URLSession.shared.data(for: request).0

    print("Response body: \(String(data: data, encoding: .utf8) ?? "Not string")")
}

Cannot deploy Laravel App to Heroku - symfony/polyfill-ctype v1.24.0 requires php >=7.1

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"symfony/polyfill-ctype": "~1.23.0",
"symfony/polyfill-iconv": "~1.23.0",
"symfony/polyfill-mbstring": "~1.23.1",
"symfony/polyfill-php80": "~1.23.1"

EF DB Context Is Null On Generically Retrieved Entities

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public interface IEvent
{
    public int EventId {get; set;}
    // rest of the props 
}

public static T FetchEvent<T>(System.Data.Entity.DbContext dbContext, int eventId) where T : class, IEvent
{
    var record = dbContext
        .Set<T>()
        .Where(e => e.EventId == eventId)
        .SingleOrDefault();
    return record;
}

Oracle SQL joining tables question from newbie

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SELECT DISTINCT p.code, c.contract, p.code_desc 
FROM db1.parts p 
INNER JOIN db1.codes c ON p.code = c.code

Laravel attribute not cast to an object when using spatie/laravel-model-states

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ShiftPattern::create($request->attributes());

public function setStatusAttribute($status)
{
    if (is_string($status)) {
        $stateClass = ShiftPatternBaseState::resolveStateClass($status);
        $status = class_exists($stateClass)
                    ? new $stateClass($this)
                    : (new ReflectionClass(self::getDefaultStateFor('status')))->newInstance($this);
    }

    $this->attributes['status'] = $status;
}

-----------------------

ShiftPattern::create($request->attributes());

public function setStatusAttribute($status)
{
    if (is_string($status)) {
        $stateClass = ShiftPatternBaseState::resolveStateClass($status);
        $status = class_exists($stateClass)
                    ? new $stateClass($this)
                    : (new ReflectionClass(self::getDefaultStateFor('status')))->newInstance($this);
    }

    $this->attributes['status'] = $status;
}

Flask login vs. Apache caching

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@app.after_request
def add_header(response):
    # response.cache_control.no_store = True
    if 'Cache-Control' not in response.headers:
        response.headers['Cache-Control'] = 'no-store'
    return response

from flask import make_response
from flask_login import login_required as _login_required

def login_required(f):
    # apply the usual login_required decorator
    decorated = _login_required(f)
    def cache_no_store_login_required_view(*args, **kwargs):
        resp = make_response(decorated(*args, **kwargs))
        # add the cache-control header to the response
        resp.headers['Cache-Control'] = 'no-store'
        return resp
    return cache_no_store_login_required_view

from functools import wraps
def cache_no_store(f):
    @wraps(f)
    def decorated_view(*args, **kwargs):
        resp = make_response(f(*args, **kwargs))
        resp.headers['Cache-Control'] = 'no-store'

@app.route('/protected')
@cache_no_store
@login_required
def my_route():
    # ...

-----------------------

@app.after_request
def add_header(response):
    # response.cache_control.no_store = True
    if 'Cache-Control' not in response.headers:
        response.headers['Cache-Control'] = 'no-store'
    return response

from flask import make_response
from flask_login import login_required as _login_required

def login_required(f):
    # apply the usual login_required decorator
    decorated = _login_required(f)
    def cache_no_store_login_required_view(*args, **kwargs):
        resp = make_response(decorated(*args, **kwargs))
        # add the cache-control header to the response
        resp.headers['Cache-Control'] = 'no-store'
        return resp
    return cache_no_store_login_required_view

from functools import wraps
def cache_no_store(f):
    @wraps(f)
    def decorated_view(*args, **kwargs):
        resp = make_response(f(*args, **kwargs))
        resp.headers['Cache-Control'] = 'no-store'

@app.route('/protected')
@cache_no_store
@login_required
def my_route():
    # ...

-----------------------

@app.after_request
def add_header(response):
    # response.cache_control.no_store = True
    if 'Cache-Control' not in response.headers:
        response.headers['Cache-Control'] = 'no-store'
    return response

from flask import make_response
from flask_login import login_required as _login_required

def login_required(f):
    # apply the usual login_required decorator
    decorated = _login_required(f)
    def cache_no_store_login_required_view(*args, **kwargs):
        resp = make_response(decorated(*args, **kwargs))
        # add the cache-control header to the response
        resp.headers['Cache-Control'] = 'no-store'
        return resp
    return cache_no_store_login_required_view

from functools import wraps
def cache_no_store(f):
    @wraps(f)
    def decorated_view(*args, **kwargs):
        resp = make_response(f(*args, **kwargs))
        resp.headers['Cache-Control'] = 'no-store'

@app.route('/protected')
@cache_no_store
@login_required
def my_route():
    # ...

R Function 'box::help()' Cannot Generate Help File: "Invalid Argument"

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# Set the working directory to the location of this very script.
setwd(this.path::this.dir())

setwd("C:\Users\jenny\path\that\only\I\have")

options(box.path = 'C:\User\Konrad\some\path')

box::use(./Resources/Modules/time)

-----------------------

# Set the working directory to the location of this very script.
setwd(this.path::this.dir())

setwd("C:\Users\jenny\path\that\only\I\have")

options(box.path = 'C:\User\Konrad\some\path')

box::use(./Resources/Modules/time)

-----------------------

# Set the working directory to the location of this very script.
setwd(this.path::this.dir())

setwd("C:\Users\jenny\path\that\only\I\have")

options(box.path = 'C:\User\Konrad\some\path')

box::use(./Resources/Modules/time)

-----------------------

# Set the working directory to the location of this very script.
setwd(this.path::this.dir())

setwd("C:\Users\jenny\path\that\only\I\have")

options(box.path = 'C:\User\Konrad\some\path')

box::use(./Resources/Modules/time)

See all related Code Snippets

Community Discussions

Trending Discussions on tinker

VBA code to return multiple lookup values in one comma separated works but crashes if there's an empty cell
Compiletime error while using java.util.Function#identity in Stream#flatMap(Function<T,Stream<R>>)
Why does Solid.js createEffect not re-run when a signal is in a setTimeout callback?
Passing a local mutable struct into an async let binding
Cannot deploy Laravel App to Heroku - symfony/polyfill-ctype v1.24.0 requires php >=7.1
EF DB Context Is Null On Generically Retrieved Entities
Oracle SQL joining tables question from newbie
Laravel attribute not cast to an object when using spatie/laravel-model-states
Flask login vs. Apache caching
R Function 'box::help()' Cannot Generate Help File: "Invalid Argument"

Trending Discussions on tinker

QUESTION

VBA code to return multiple lookup values in one comma separated works but crashes if there's an empty cell

Asked 2022-Mar-08 at 15:05

I've found this code online which works like vlookup function but returns multiple data in one cell separated by comma and it works most of the time. But when there's a blank cell in the lookup value it causes a crash. It takes a long time to process too. I tried to tinker with it but I'm completely new to VBA coding. I was wondering if anyone could please help me fix the issue and maybe optimize the code a little so it doesn't crash or take as long. Lookup value Table array

Here's the code

    Function MultiVLookUp(LookupValue As String, LookupRange As Range, ColumnNumber As Integer, Char As String)
    Dim I As Long
    Dim xRet As String
    For I = 1 To LookupRange.Columns(1).Cells.Count
        If LookupRange.Cells(I, 1) = LookupValue Then
            If xRet = "" Then
                xRet = LookupRange.Cells(I, ColumnNumber) & Char
            Else
                xRet = xRet & "" & LookupRange.Cells(I, ColumnNumber) & Char
            End If
        End If
    Next
    MultiVLookUp = Left(xRet, Len(xRet) - 1)
End Function

Thanks in advance.

ANSWER

Answered 2022-Mar-08 at 12:50

Im not really sure the point of this macro considering it just outputs the same value repeatedly but here ya go.

Sub main()

    ' ws is the worksheet object referencing "Sheet1"
    Dim ws As Worksheet: Set ws = ThisWorkbook.Worksheets("Sheet1")
                                
                                      ' Top Left (r, c)          (r, c) Bottom Right
    Dim rng As Range: Set rng = ws.Range(ws.Cells(1, 1), ws.Cells(6, 6))

    Dim lookupValue As String: lookupValue = ""

    Dim outStr As String: outStr = rangeValuesToString(rng, lookupValue)

    Debug.Print outStr

End Sub

Function rangeValuesToString(rng As Range, lookupValue As String) As String

    Dim topRow As Integer: topRow = rng.Row
    Dim botRow As Integer: botRow = rng.Row - 1 + rng.Rows.Count

    Dim leftCol As Integer: leftCol = rng.Column
    Dim rightCol As Integer: rightCol = rng.Column - 1 + rng.Columns.Count

    Dim i  As Integer, j As Integer
    Dim outStr As String: outStr = ""

    ' Iterates through each column moving left to right
    For i = leftCol To rightCol
        For j = topRow To botRow
            If rng.Cells(j, i).Value = lookupValue Then
                outStr = outStr & rng.Cells(j, i).Value & ", "
            End If
        Next j
    Next i

    rangeValuesToString = Left(outStr, Len(outStr) - 2)

End Function

Source https://stackoverflow.com/questions/71394603

QUESTION

Passing a local mutable struct into an async let binding

Asked 2022-Jan-24 at 22:59

I want to create a URL request and pass it into an async let binding, which seems natural to me:

func test() async {
    // Force unwraps (!) are just for demo
    var request = URLRequest(url: URL(string:"https://stackoverflow.com")!)
    request.httpMethod = "GET" // just for example
    // some more tinkering with `request` here.
    
    // 🔴 Error on this line: "Reference to captured var 'request' in concurrently-executing code"
    async let responseData = URLSession.shared.data(for: request).0
    
    // It works like this:
    // let immutableRequest = request
    // async let responseData = URLSession.shared.data(for: immutableRequest).0
    
    // other stuff
    print("Response body: \(String(data: try! await responseData, encoding: .utf8))")
}

Why do I get an error? URLRequest is a struct, so when we pass it into a function, the function should get a copy of that struct, so if I modify request after the async call, it shouldn't affect the call.

I know that the call happens asynchronously, but I would expect it to capture the parameters at the point of the call and then continue execution as though the call has been made (so, a copy of request at the point of the call has been passed into data(for: request).

Also, is there a convenient way to do it without creating another let variable and without using a closure to initialize request, like:

let request: URLRequest = {
    var result = URLRequest(url: URL(string:"https://stackoverflow.com")!)
    result.httpMethod = "GET"
    return result
}()

ANSWER

Answered 2022-Jan-24 at 22:59

As SE-0317 - async let bindings says:

... async let is similar to a let, in that it defines a local constant that is initialized by the expression on the right-hand side of the =. However, it differs in that the initializer expression is evaluated in a separate, concurrently-executing child task.

The child task begins running as soon as the async let is encountered.

...

A async let creates a child-task, which inherits its parent task's priority as well as task-local values. Semantically, this is equivalent to creating a one-off TaskGroup which spawns a single task and returns its result ...

Similarly to the [group.addTask] function, the closure is @Sendable and nonisolated, meaning that it cannot access non-sendable state of the enclosing context. For example, it will result in a compile-time error, preventing a potential race condition, for a async let initializer to attempt mutating a closed-over variable:

var localText: [String] = ...
async let w = localText.removeLast() // error: mutation of captured var 'localText' in concurrently-executing code

The async let initializer may refer to any sendable state, same as any non-isolated sendable closure.

So, it is not the case that the parameter to data(for:delegate:) is copied and then the asynchronous task is created, but rather the other way around.

Usually, if you were using a closure, you would just add request to the closure’s capture list, but that’s not possible in this case. E.g., you could create a Task yourself with a capture list, achieving something akin to async let, but with greater control:

func test() async throws {
    var request = URLRequest(url: URL(string:"https://httpbin.org/get")!)
    request.httpMethod = "GET" // just for example

    let task = Task { [request] in
        try await URLSession.shared.data(for: request).0
    }

    // do some more stuff in parallel

    print("Response body: \(String(data: try await task.value, encoding: .utf8) ?? "Not string")")
}

Obviously, you can simply await the data(for:delegate:), rather than async let, and the problem goes away:

func test() async throws {
    var request = URLRequest(url: URL(string:"https://httpbin.org/get")!)
    request.httpMethod = "GET" // just for example

    let data = try await URLSession.shared.data(for: request).0

    print("Response body: \(String(data: data, encoding: .utf8) ?? "Not string")")
}

Source https://stackoverflow.com/questions/70834716

code	code_desc	part_no	part
23	Fruits	001	Banana
23	Fruits	002	Apple
24	Veggies	010	Celery
24	Veggies	010	Onion
25	Misc	125	Sanitizer

code	contract
23	Albany
24	Detroit
25	Chicago

CD	contract	descrip
23	Albany	Fruits
23	Albany	Fruits
24	Detroit	Veggies
24	Detroit	Veggies
25	Chicago	Sanitizer

CD	contract	descrip
23	Albany	Fruits
24	Detroit	Veggies
25	Chicago	Sanitizer

QUESTION

Laravel attribute not cast to an object when using spatie/laravel-model-states

Asked 2022-Jan-04 at 14:32

I'm having an issue when using the model states library from Spatie. I don't think it's a bug but it's not behaving as expected, although only in one of my controllers. We are using the older version of the code and, for now, cannot update to the latest version.

The problem is the "state" field is not being cast to a Spatie\ModelStates\State derived object and is returned as a string. So when I try to transition to a new state I get the exception: "Call to a member function transitionTo() on string".

However, there are other parts of the code where the same model is used and transitions work correctly, with the state being converted to the correct class. I just can't work out why this one controller is causing problems.

States derived from my own abstract class

<?php

namespace App\States\ShiftPattern;

use Spatie\ModelStates\State;

abstract class ShiftPatternBaseState extends State
{
    public static array $states = [
        Approved::class,
        Draft::class,
        PendingApproval::class,
        Rejected::class,
    ];
}

Even though I register the states in the base class they are also in the same folder. A migration added the status field to the database table

    public function up()
    {
        Schema::table('shift_patterns', function (Blueprint $table) {
            $table->string('status')->default('draft')->after('booking_pay_rate_id');
        });
    }

and my model implements HasStates

class ShiftPattern extends Model
{
    use HasStates, LogsActivity, UserPermissions;
    ...
    public function registerStates(): void
    {
        $this->addState('status', ShiftPatternBaseState::class)
            ->default(Draft::class)
            ->allowTransition([Draft::class, Rejected::class], PendingApproval::class, ToPendingApproval::class)
            ->allowTransition(PendingApproval::class, Approved::class, PendingApprovalToApproved::class)
            ->allowTransition(PendingApproval::class, Rejected::class, ToRejected::class);
    }
    ...
}

The problem is occurring in a controller which I am updating. It currently handles an API call to create a new ShiftPattern and attach it to a Booking model, which works. There is a one-to-many relationship defined between Booking and ShiftPattern.

// CreateShiftPatternRequest has the Booking object ($request->record) and attributes ($request->attributes) to create the ShiftPattern

public function createShiftPattern(CreateShiftPatternRequest $request)
{
    $this->authorize('editShiftPatterns', $request->record);

    $shiftPattern = $request->record->shiftPatterns()->create($request->attributes());

    return $this->reply()->content($shiftPattern, [], $this->getMeta('bookings.shift-pattern.create'));
}

The new ShiftPattern is being created in the "Pending Approvel" state, but some bookings do not require them to be "approved", so I want to move them straight to the "Approved" state.

public function createShiftPattern(CreateShiftPatternRequest $request)
{
    ...
    $shiftPattern = $request->record->shiftPatterns()->create($request->attributes());
    if (!$request->record->booking_must_be_approved) {
        $shiftPattern->transitionTo(Approved::class);
    }
    return $this->reply()->content($shiftPattern, [], $this->getMeta('bookings.shift-pattern.create'));
}

But I keep getting the error "Call to a member function transitionTo() on string" which happens inside the transitionTo call once the state field has been resolved by the library. As I said, in other cases this works fine, but in this one controller the state field is not automatically cast to an object.

I thought the model might not be "booted" correctly to set up the class casts, so I exposed a function to allow the controller to call bootIfNotBooted but inside that it skips the initialisation as it has been booted. Then I tried refreshing and reloading the ShiftPattern from the database, to see if that would solve it:

    ...
    $shiftPattern = $request->record->shiftPatterns()->create($request->attributes());

    // Attempt 1 - refresh model
    $shiftPattern->refresh();
    // Attempt 2 - reload model
    $newShiftPattern = ShiftPattern::find($shiftPattern->id); 
    ...

neither worked, the state field was still being returned as a string.

I also tried creating the model separately from associating it with the Booking, but that did not fix the issue either

    $shiftPattern = ShiftPattern::create($request->attributes());
    if (!$request->record->booking_must_be_approved) {
        $shiftPattern->transitionTo(Approved::class);
    }
    $request->record->shiftPatterns()->save($shiftPattern);
    ...

Does anyone have any idea why this could be happening? I really don't think it's a bug in the ModelStates library since it works in tinker and other sections of my code, it seems to be a Laravel attribute cast issue.

FYI I have also posted this question in the package's github discussion.

ANSWER

Answered 2022-Jan-04 at 14:32

The problem was caused by the status field being filled when the ShiftPattern was created from the attributes passed in:

ShiftPattern::create($request->attributes());

When create is called Laravel constructs a new object and then fills the attributes from the array passed. In this case the caller of the API included the name of the state (pending-approval), so after the class was constructed and the status field set to the default state (as an object) the attribute was overwritten with the string "pending-approval" - hence the error when trying to transition to a new state.

The solutions I see available are:

Don't allow a state field to be fillable - let the object be created with the default state and then transition to the desired state. This method also ensures any transition classes are called.
Fix the state map - in my case the problem was caused because another developer no longer wanted to use the draft state (which would then transition to pending-approval) and jump straight to pending-approval, but the change was made without thinking about its impact. The draft state should have been removed and the code refactored.
Implement a mutator on the state attribute - the mutator would allow state names to be used and translate those to state objects.

For solution 3 the mutator can use the library function resolveStateClass:

public function setStatusAttribute($status)
{
    if (is_string($status)) {
        $stateClass = ShiftPatternBaseState::resolveStateClass($status);
        $status = class_exists($stateClass)
                    ? new $stateClass($this)
                    : (new ReflectionClass(self::getDefaultStateFor('status')))->newInstance($this);
    }

    $this->attributes['status'] = $status;
}

When the state is using a string the base state checks to see if it can be resolved to a class (names or class strings can be used. The string returned from the resolve function is either a fully qualified class name or, if it was not matched to a known state class, the string you passed in.

Checking the string result to see if a class exists means we can either create an instance of that state class, or we create a default state. Either way the attribute on the object is now correct and we can call transitionTo on it.

I'm going to use this mutator as a quick fix for the problem I have but then I need to go back and refactor the code (option 2) to remove the draft state and use the pending-approval state as the default in future.

Source https://stackoverflow.com/questions/70465485

QUESTION

Flask login vs. Apache caching

Asked 2021-Dec-30 at 20:31

I'm a novice web developer, but experienced python programmer, and Apache dolt. Recently, I've been tinkering with hosting a small website and learning my way through some hosting issues, Flask, html templates, etc.

I've followed several Flask tutorials about controlling access to pages with @login_required decorators on access-controlled endpoints and using session to store a logged in k-v pair. This all works perfectly when running locally on Flask's development server on my local machine. However, when I push this onto my hosting service, I'm getting what I believe is cached behavior to many of the access-controlled endpoints and I'm able to see them after logging out (and checking the session data to ensure the key is removed).

Some specifics...

Using flask with session for the login info, not flask-login.
Hosting on a managed VPS that is using Phusion Passenger as a WSGI interface to Apache
I have no config files in use for Apache...just defaults right now.
Website is very low traffic... Prolly just me & the bots right now. :)

My passenger_wsgi file:

import sys, os
from datetime import timedelta
INTERP = "/home/<website>/venv1/bin/python3"
#INTERP is present twice so that the new Python interpreter knows the actual executable path
if sys.executable != INTERP: os.execl(INTERP, INTERP, *sys.argv)

# def application(environ, start_response):
#     start_response('200 OK', [('Content-type', 'text/plain')])
#     return ["Hello, world!"]

sys.path.append(os.getcwd())
from app import app as application

After I login, things work as expected. After logout, I can still hit the endpoints that are supposed to be access-controlled and I repeatedly see this "evidence" when I inspect the network traffic in my browser:

Summary
URL: https://<website>/<endpoint>  <---- an endpoint covered by @login_required
Status: 200
Source: Memory Cache

Request
No request, served from the memory cache.

Response
Content-Type: text/html; charset=utf-8
Expires: Wed, 22 Dec 2021 17:14:00 GMT
Date: Wed, 22 Dec 2021 17:04:00 GMT
Content-Length: 23
Cache-Control: max-age=600
Vary: User-Agent
Status: 200 OK
x-powered-by: Phusion Passenger 5.0.30
Server: Apache

So my questions are these...

Is my diagnosis correct that this is Apache caching at work? (Evidence looks compelling... :) )
I'd rather not (at this time) invest effort into moving to flask-login unless that is curative.
Is there a simple way to control this behavior without becoming an expert in apache or Passenger config files or such? I don't mind just turning caching off if that is doable for this low-traffic site, but I'd be interested in what a good solution looks like to in order to educate myself on either controlling the caching or telling apache somehow (?) which endpoints are access controlled, etc.

I humbly submit my question to the folks who deal with these stacks!

ANSWER

Answered 2021-Dec-30 at 20:31

Since 5.0, passenger will "helpfully" add cache-control headers to responses it deems 'cachable'.

In order to stop this, your application should add the header Cache-Control: no-store.

To do this globally in Flask as described here:

@app.after_request
def add_header(response):
    # response.cache_control.no_store = True
    if 'Cache-Control' not in response.headers:
        response.headers['Cache-Control'] = 'no-store'
    return response

If you want to be more discriminating and only want to do this for routes which require a login, you could make your own extension to the login_required decorator to do this for your routes which require logins (or a separate decorator entirely)

from flask import make_response
from flask_login import login_required as _login_required

def login_required(f):
    # apply the usual login_required decorator
    decorated = _login_required(f)
    def cache_no_store_login_required_view(*args, **kwargs):
        resp = make_response(decorated(*args, **kwargs))
        # add the cache-control header to the response
        resp.headers['Cache-Control'] = 'no-store'
        return resp
    return cache_no_store_login_required_view

Or as a separate decorator to set no-store...

from functools import wraps
def cache_no_store(f):
    @wraps(f)
    def decorated_view(*args, **kwargs):
        resp = make_response(f(*args, **kwargs))
        resp.headers['Cache-Control'] = 'no-store'

@app.route('/protected')
@cache_no_store
@login_required
def my_route():
    # ...

Source https://stackoverflow.com/questions/70452823

QUESTION

R Function 'box::help()' Cannot Generate Help File: "Invalid Argument"

Asked 2021-Dec-30 at 16:38

Motivation

My colleagues and I routinely create ad hoc scripts in R, to perform ETL on proprietary data and generate automated reports for clients. I am attempting to standardize our approach, for the sake of consistency, modularity, and reusability.

In particular, I want to consolidate our most commonly used functions in a central directory, and to access them as if they were functions from a proprietary R package. However, I am quite raw as an R developer, and my teammates are even less experienced in R development. As such, the development of a formal package is unfeasible for the moment.

Approach

Fortunately, the box package, by Stack Overflow's very own Konrad Rudolph, provides (among other modularity) an accessible approach to approximate the behavior of an R package. Unlike the rigorous development process outlined by the RStudio team, box requires only that one create a regular .R file, in a meaningful location, with roxygen2 documentation (#') and explicit @exports:

Writing modules

The module bio/seq, which we have used in the previous section, is implemented in the file bio/seq.r. The file seq.r is, by and large, a normal R source file, which happens to live in a directory named bio.

In fact, there are only three things worth mentioning:

Documentation. Functions in the module file can be documented using ‘roxygen2’ syntax. It works the same as for packages. The ‘box’ package parses the
documentation and makes it available via box::help. Displaying module help requires that ‘roxygen2’ is installed.

Export declarations. Similar to packages, modules explicitly need to declare which names they export; they do this using the annotation comment #' @export in front of the name. Again, this works similarly to ‘roxygen2’ (but does not require having that package installed).

⋮

At the moment, I am tinkering around with a particular module, as "imported" into a script. While the "import" itself works seamlessly, I cannot seem to access the documentation for my functions.

Code

I am experimenting with box on a Lenovo ThinkPad running Windows 10 Enterprise. I have created a script, aptly titled Script.R, whose location serves as my working directory. My module exists in the relative subdirectory ./Resources/Modules as the humble file time.R, reproduced here:

###########################
## Relative Date Windows ##
###########################

#' @title Past Day of Week
#' @description Determine the date of the given weekday that fell a given number
#'   of weeks before the given date.
#' @param from \code{Date} object. The point of reference, from which we go
#'   backwards. Defaults to current \code{Sys.Date()}.
#' @param back \code{integer}. The number of weeks to go backward from the point
#'   of reference; negative values go forward. Defaults to \code{1}, for last
#'   week. Weeks begin on \code{"Monday"}.
#' @param weekday \code{character}. The weekday within the week targeted by
#'   \code{back}; one of \code{c("Monday", "Tuesday", "Wednesday", "Thursday",
#'   "Friday", "Saturday", "Sunday")}.
#' @export
#' @return The date of the \code{weekday} falling in the week \code{back} weeks
#'   prior to the week in which \code{from} falls. Defaults to \code{"Monday"}.
past_weekday <- function(from = Sys.Date(),
                         back = 1,
                         weekday = c("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday")
                         ) {
  cycle <- c("Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday")
  
  from <- as.Date(from)
  back <- as.integer(back)
  
  weekday_index <- (which(cycle == weekday[1]) - 1) %% 7
  
  from_index <- (which(cycle == "Sunday") + as.POSIXlt(from)$wday - 1) %% 7
  
  weekdate <- as.Date(from) - lubridate::days(from_index) - lubridate::weeks(as.numeric(back)) + lubridate::days(weekday_index)
  
  return(as.Date(weekdate))
}

Observe the roxygen2 documentation, as indicated by the special #' comments and @ tags. The documentation for past_weekday() is of far greater interest to me than the function itself.

Last and certainly least, here is reproduced Script.R itself:

# Set the working directory to the location of this very script.
setwd(this.path::this.dir())

# Access the functions in 'time.R' by relative location.
box::use(Resources/Modules/time)

# Run the function with its default values.
time$past_weekday()

# View the help page for the function.
box::help(time$past_weekday)

In theory, that final line will display the documentation for past_weekday(), via box::help():

The box vignette gives a simple example to that effect:

We can also display the interactive help for individual names using the box::help function, e.g.:

 box::help(seq$revcomp)

Problem

The first three lines of Script.R give me exactly what I desire. That is, they load time into R as an environment, from which I can access past_weekday() via time$past_weekday(). This module$function() syntax is analogous to the qualification of functions from formal packages: package::function(). Indeed, past_weekday() itself works just as expected:

time$past_weekday()
# [1] "2021-07-19"

However, when I attempt to interactively access the documentation

box::help(time$past_weekday)

the console displays the following warnings

Warning messages:
1: In utils::packageDescription(package, fields = "Version") :
  no package 'PKG' was found
2: In file.create(to[okay]) :
  cannot create file 'C:\Users\greg\AppData\Local\Temp\RtmpYBTTyG/.R/doc/html/module:Resources/Modules/time.html', reason 'Invalid argument'

and the interactive help window is empty but for this error message:

For my team, this could prove a serious issue. Since we often rely on useful functions written by each other, it is crucial that any user on our team be able to easily access clear documentation by the author of the function...just as the user is accustomed to doing with formal R packages. Without this ability, the user must either bug the author for clarification, or blunder ahead without a clear understanding of the function's purpose and limitations.

Suspicions

When I read the warning

In file.create(to[okay]) :
cannot create file 'C:\Users\greg\AppData\Local\Temp\RtmpYBTTyG/.R/doc/html/module:Resources/Modules/time.html', reason 'Invalid argument'

I was drawn to the filepath

C:\Users\greg\AppData\Local\Temp\RtmpYBTTyG/.R/doc/html/module:Resources/Modules/time.html

as the cause for an Invalid argument to file.create(). To my knowledge, a directory name .../module:Resources/... containing a colon : is illegal on Windows ~~and elsewhere~~.

Indeed, when I supply another illegal filepath ./illegal:directory:name/missing.txt to file.create()

file.create('./illegal:directory:name/missing.txt')
# [1] FALSE

I get the same warning:

Warning message:
In file.create("./illegal:directory:name/missing.txt") :
  cannot create file './illegal:directory:name/missing.txt', reason 'Invalid argument'

The culprit appears to be this line in help.R:

display_help(doc, paste0('module:', mod_name), help_type)
#                               ^
#                             Here

However, this seems far too simple a diagnosis. Frankly, I would be quite surprised to find such a portability issue within a package designed by a seasoned developer. I find it overwhelmingly more likely that I am simply out of my depth.

What am I missing?

Update 1

I tried it on my MacBook Air, running Mojave, and it actually worked! While I still got the first (rather odd) warning message on the console

Warning message:
In utils::packageDescription(package, fields = "Version") :
  no package 'PKG' was found

the interactive help window does display the intended documentation:

Naturally, this does not exactly solve my problem—the scripts will be executed on a VM running Windows, just like my Lenovo and every other computer used at my company. However, it does support the hypothesis that this issue is specific to box on Windows.

Update 2

Konrad has kindly confirmed that this is indeed a bug, and he's working on a fix. Many thanks to Konrad for his clarification and responsiveness!

ANSWER

Answered 2021-Jul-30 at 23:42

As noted, that’s a bug, now fixed.

But since we’re here, a word on usage:

# Set the working directory to the location of this very script.
setwd(this.path::this.dir())

This is generally not recommended. To quote Jenny Bryan:

If the first line of your R script is

setwd("C:\Users\jenny\path\that\only\I\have")

I will come into your office and SET YOUR COMPUTER ON FIRE 🔥.

‘box’ also doesn’t need this; instead, the idea is to configure a global module search path (equivalent to R’s package library, see .libPaths()), e.g. via the box.path option (this would usually go into the user’s .Rprofile configuration — not in the script itself!):

options(box.path = 'C:\User\Konrad\some\path')

Afterwards, modules that are installed in this search path will be found by box::use.

As noted, this should be a global setting. To use project-specific modules, you wouldn’t set a global search path; instead, you’d use relative imports:

box::use(./Resources/Modules/time)

This should work regardless of the working directory; it uses the calling script’s location instead. Consequently, this.path::this.dir() or similar hacks are never necessary with ‘box’. And to find data files, ‘box’ provides the box::file function which also works regardless of the current working directory.

Source https://stackoverflow.com/questions/68583772

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install tinker

Add tinker-gradle-plugin as a dependency in your main build.gradle in the root of your project:. Then you need to "apply" the plugin and add dependencies by adding the following lines to your app/build.gradle.