members | Managing People , CRUD with Dashboard | GraphQL library
kandi X-RAY | members Summary
kandi X-RAY | members Summary
Members - is a project only to practice building bleeding-edge Full Stack Serverless project with NextJS, Hasura, GraphQL, Apollo, Postgres, JavaScript. A project inspired and forked from Daydrink. Thanks Lee Robinson.
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Top functions reviewed by kandi - BETA
- Returns a promise that resolves to the user .
- Wrapper for an older Apollo assertion .
- use current state
- generate the SQL table
- Initialize a new member .
- Initialize the apollo client .
- Create random members .
- Create an Apollo client .
- Provides functionality for searching for search .
- Provides the authentication provider .
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Community Discussions
Trending Discussions on members
QUESTION
While testing handling of const object members I ran into this apparent bug in clang. The code works in msvc and gcc. However, the bug only appears with non-consts which is certainly the most common use. Am I doing something wrong or is this a real bug?
ANSWER
Answered 2022-Apr-15 at 19:32Your game of "construct a new object in place of the old one" is the problem.
- It is completely forbidden if the object is
constor contains anyconstmember subobjects.
due to the following rule in [basic.life] (note that a rewrite1 of this rule is proposed in post-C++17 drafts)
If, after the lifetime of an object has ended and before the storage which the object occupied is reused or released, a new object is created at the storage location which the original object occupied, a pointer that pointed to the original object, a reference that referred to the original object, or the name of the original object will automatically refer to the new object and, once the lifetime of the new object has started, can be used to manipulate the new object, if:
- the storage for the new object exactly overlays the storage location which the original object occupied,
and
- the new object is of the same type as the original object (ignoring the top-level cv-qualifiers)
and
- the type of the original object is not const-qualified, and, if a class type, does not contain any non-static data member whose type is const-qualified or a reference type
and
- the original object was a most derived object of type
Tand the new object is a most derived object of typeT(that is, they are not base class subobjects).
You have to abide by this rule for the purposes both of return *this; and also the implicit destructor call.
- It also doesn't work during
constexprevaluation.
... this one is specific to the fact that std::string small-string optimization may be implemented using a union, and changing an active union member has been forbidden during constexpr evaluation, although this rule too seems to have changed post-C++17.
1 I consider said change to be misguided (it doesn't even permit the pattern it was supposed to fix) and break legitimate coding patterns. While it's true that a pointer to const-qualified object only made my view readonly and did not let me assume that the object wasn't being changed by someone else holding a pointer/reference that wasn't so qualified, in the past if I was given a pointer (qualified or not) to an object with a const member, I was assured that no one was changing that member and I (or my optimizing compiler) could safely use a cached copy of that member (or data derived from that member value, such as a hash or a comparison result).
Apparently this is no longer true.
While changing the language rule may automatically remove all compiler optimizations that would have assumed immutability of a const member, there's no automatic patch to user-written code which was correct and bug-free under the old rules, for example std::map and std::unordered_map code using std::pair. Yet the DR doesn't appear to have considered this as a breaking change...
I was asked for a code snippet that illustrates a behavior change of existing valid code, here it is. This code was formerly illegal, under the new rules it's legal, and the map will fail to maintain its invariants.
QUESTION
There are a number of different ways, that make a type/class usable in a ranged for loop. An overview is for example given on cppreference:
range-expressionis evaluated to determine the sequence or range to iterate. Each element of the sequence, in turn, is dereferenced and is used to initialize the variable with the type and name given in range-declaration.
begin_exprandend_exprare defined as follows:
- If
range-expressionis an expression of array type, thenbegin_expris__rangeandend_expris (__range+__bound), where__boundis the number of elements in the array (if the array has unknown size or is of an incomplete type, the program is ill-formed)- If
range-expressionis an expression of a class typeCthat has both a member namedbeginand a member namedend(regardless of the type or accessibility of such member), thenbegin_expris__range.begin()andend_expris__range.end()- Otherwise,
begin_exprisbegin(__range)andend_exprisend(__range), which are found via argument-dependent lookup (non-ADL lookup is not performed).
If I want to use a ranged for loop say in a function template, I want to constrain the type to be usable in a ranged for loop, to trigger a compiler error with a nice "constraint not satisfied" message. Consider the following example:
...ANSWER
Answered 2022-Apr-14 at 09:51It seems like what you need is std::ranges::range which requires the expressions ranges::begin(t) and ranges::end(t) to be well-formed.
Where ranges::begin is defined in [range.access.begin]:
The name
ranges::begindenotes a customization point object. Given a subexpressionEwith typeT, let t be an lvalue that denotes the reified object forE. Then:
If
Eis an rvalue andenable_borrowed_range>isfalse,ranges::begin(E)is ill-formed.Otherwise, if
Tis an array type andremove_all_extents_tis an incomplete type,ranges::begin(E)is ill-formed with no diagnostic required.Otherwise, if T is an array type,
ranges::begin(E)is expression-equivalent tot + 0.Otherwise, if
auto(t.begin())is a valid expression whose type modelsinput_or_output_iterator,ranges::begin(E)is expression-equivalent toauto(t.begin()).Otherwise, if
Tis a class or enumeration type andauto(begin(t))is a valid expression whose type modelsinput_or_output_iteratorwith overload resolution performed in a context in which unqualified lookup forbeginfinds only the declarations
QUESTION
I am facing a relatively tricky situation here that seemed quite easy at first sight. After moving those three members from the parent class Parent to its child class Child it seems that I'm no longer able to take advantage of the default constructor.
Why? And is there a way out here without having to specifically implement a Child(...) constructor. Seems counterintuitive at first... Actually I would have thought that the first example is where it fails (thinking that the Child class' constructor would overshadow the one of its parent).
...ANSWER
Answered 2022-Mar-31 at 14:52You need empty braces for the base subobject in aggregate initialization. (Default constructor is irrelevant in this case, both Parent and Child are aggregate and aggregate initialization gets performed.)
However, if the object has a sub-aggregate without any members (an empty struct, or a struct holding only static members), brace elision is not allowed, and an empty nested list
{}must be used.
QUESTION
I'm new to Android development and I'm currently building my first real app. I'm trying to implement a MVVM architecture and because of that I'm having a viewModel for each fragment and each viewModel has a viewModelFactory. At least, this is how I understood it has to be.
I use the boilerplate code everyone seems to use for the factory:
...ANSWER
Answered 2022-Feb-25 at 16:53It seems like you are either directly or indirectly (through some other library) depending on Lifecycle 2.5.0-alpha01.
As per this issue:
You need to temporarily add following to your
build.gradle:
QUESTION
It was working fine before I have done nothing, no packages update, no gradle update no nothing just created new build and this error occurs. but for some team members the error occur after gradle sync.
The issue is that build is generating successfully without any error but when opens the app it suddenly gets crash (in both debug and release mode)
Error
...ANSWER
Answered 2022-Feb-25 at 23:22We have fixed the issue by replacing
QUESTION
I just updated flutter version from 2.5.3 to 2.8. I have the following error that i dont know how resolve it. There is no error on any plugin installed, It seems that the error comes from the inner classes themselves and I don't know in which part of my application the error is throwed:
...ANSWER
Answered 2021-Dec-13 at 13:09I have solved it by forcing update flutter_math_fork adding to pubspec:
QUESTION
I want to run an example via Cargo but I am facing an error:
...ANSWER
Answered 2021-Dec-14 at 14:09Update the Rust to satisfy the new edition 2021.
rustup default nightly && rustup update
Thanks to @ken.
Yes, you can use the stable channel too!
But I love nightly personally.
QUESTION
I have an object that is related to some file stored on the disk. The object's constructor accepts this file as an argument, reads it and creates an actual object with the settings depending on the file's content. During the runtime there is a probability for this file to be modified by the user. The object has a method that checks if the file has been modified since the last read, and if this is true, the object has to be updated. There are enough members to be updated inside the object, so instead of manually update each of them it is more convenient to simply create a new object and move it into the existing one(less typing and better readability). But is it actually safe to change *this during the method execution like in the example below?
ANSWER
Answered 2021-Dec-18 at 10:09You seem to be worried about this appearing on the left hand side, though *this = ... merely calls operator=. Typically the assignment operator that takes a rvalue reference just moves the members.
Consider this simpler example:
QUESTION
If a user has the privacy setting "Allow direct messages from server members" turned off and a discord bot calls
...ANSWER
Answered 2022-Jan-22 at 22:03You can generate a Bad Request to the dm_channel. This can be accomplished by setting content to None, for example.
If it returns with 400 Bad Request, you can DM them. If it returns with 403 Forbidden, you can't.
QUESTION
I am trying to create an std::set of pointers to data members. However, I can't find a method to sort or hash such pointers.
They can't be compared with operator<, they don't seem to be supported by std::less and there is no standard integer type that is guaranteed to hold their representation (they might not fit in std::uintptr_t).
This is what I tried first (https://godbolt.org/z/K8ajn3rM8) :
...ANSWER
Answered 2022-Jan-06 at 16:08Compare them bytewise, e.g. using this comparator:
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