BookManager | 基于MVC模式实现的图书管理系统
kandi X-RAY | BookManager Summary
kandi X-RAY | BookManager Summary
基于MVC模式实现的图书管理系统(GUI)
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Top functions reviewed by kandi - BETA
- Called when the book update button
- Populate table
- Reset value of book
- Display the book back button
- Reset the value of book
- Handle action delete action
- Fill table
- Login a user
- Lists rows in the book
- Add a new book
- Update the t_ student info
- Fill the BookType
- Populate information from a user
- Update Book
- Login a user
- Add a new Book
- Retrieves the information for a given username
- A book table mouse pressed
- Fill the book type
- Edit book type
- Login action
- Action button
- User pressed the book add button
- Find by book name
BookManager Key Features
BookManager Examples and Code Snippets
Community Discussions
Trending Discussions on BookManager
QUESTION
I am currently working on a part of a Laravel app that tracks reading progress for books. I am using Livewire and have two components. The main component is the BookManager class, which shows all the books and updates when books are updated or deleted.
...ANSWER
Answered 2021-Aug-24 at 08:12Try using :wire:key
and not :key
, here:
instead of:
QUESTION
This code is used to add new books but I don't understand how it really works. I'm seeing a variable books used but was never assigned. How did it come to existence?
...ANSWER
Answered 2021-Nov-13 at 08:05this.books
is initialized if it does not exist at: this.books=[book]
. The check if it is empty is done in the if statement at: if(!this.books){}
. It will be falsy the first time. If it exists, the next book
will be pushed into the new array.
QUESTION
I'm grabbing info from an API and the API kicks back 2 different prices in the array, one in CAD and one in USD. The current API call only grabs the CAD price but I'm trying to get it to grab the prices in USD.
Here is the API call and how it sets the data
...ANSWER
Answered 2021-Jun-30 at 02:35var_export() of supply detail will look like the following
QUESTION
I'm getting this error when I try to create a new object via Book.objects.create()
:
ANSWER
Answered 2021-May-22 at 00:50My test.py class didn't end in TestCase. I.e. it should be class TestTestCase(TestCase):
and not class Test(TestCase):
QUESTION
I'm trying to create a unique SlugField using a post_save model signal. If the SlugField already exists, a number should be appended to the slug to make it unique.
However, Django does not seem to to recognize when the SlugField already exists.
I'm using a single-tabled inherited MPTT model:
...ANSWER
Answered 2021-May-07 at 00:31Looks like the the post_save
signal doesn't actually save.
i.e.
QUESTION
I have a question about generics in swift.
First of all, In JSONDecoder
we have the below function
.
ANSWER
Answered 2020-Dec-06 at 00:24as far I know [Book].self does not conform to Decodable
It does. (Actually, that's [Book]
, not [Book].Type
, but [Book].self
isn't what you meant.)
QUESTION
I'm using Hibernate in this application. I'm trying call data from database to jTable. When database is empty codes are compiling but when i add data to mysql table program throw java.util.ConcurrentModificationException.
...ANSWER
Answered 2020-Nov-06 at 13:09Try using a CopyOnWriteArrayList
instead of an ArrayList
. This will allow for concurrent modification. But be warned, if you are changing the list a lot, this is not very efficient. If you are mostly reading, however, it should be fine.
QUESTION
In our Rails application we have a third-party API (using Thrift) that we wrap with classes that can use multiple methods of retrieving data from the same instance and then adding that data into an instance variable/accessor.
For example we have a BookManager
class like so:
ANSWER
Answered 2020-Aug-22 at 06:09You are correct about why the stub you've tried does not work. Since you are mocking the method that sets the instance variable, any time you access the instance variable through the attr_accessor
you're going to get the initialized value rather than the mocked return value of find_books_by_id
.
You are also correct in your instinct to not mock the API. If your goal is to test the code that uses the BookManager
, then you should mock/stub the BookManager
interface not its subordinate objects. In fact, your tests should not know anything about the internal structure of the BookManager
, including whether or not it maintains state. That would be a violation of the Law of Demeter.
But, your tests do know about the public interface of the BookManager
, including the books
attr_accessor. The solution to your problem is to stub that, and mock all the other methods with a null object.
Like this:
QUESTION
I created a web application which gets the data from the user from the console and stores the data in MongoDB and pass the data to the Angular frontend using Spring rest api.
Whole system is working finely and now I want to rearrange the folder structure according to a design pattern and as shown below I tried to use MVC model but I'm not sure if the file rearrangement is correct I don't know much about design patterns.
So please help me with this matter and if the below structure is wrong please help me to make it correct.
Controlller
BookController - Class with rest api to pass data to angular frontend (REST Controller class)
Model
Book - Parent class with variables and relevant methods
Novel - Child class with variables and relevant methods
Poems - Child class with variables and relevant methods
MyBookManager - BookManager interface implemented class which includes crud operations with mongoDB
View
BookManager - Interface related to MyBookManager
Console - Class which takes the input from users from the the console and calls methods in MyBookManager to save them to DB
Repository
BookRepository - Interface which extends MongoRepository
Remaining classes
BookStoreApplication - Class which includes the main method(Running class)
ErrorHandle - Class which includes methods for validations
ANSWER
Answered 2020-Jul-12 at 14:36Overall good arrangement of the classes. The only adjustment I can suggest is to move the BookManager and MyBookManager in the Controller package. The reason is because it's between the view (Console) and the model (database), it can change the model (by updating the db), and it may contain some business logic on how to parse the input of the user properly.
If you want to further decouple the BookManager from the Controller, then you can call it BookService and place it inside a package called Service (along with MyBookService).
Regarding design patterns, MVC is an architectural pattern rather than a design pattern. I link you to other questions for more info:
QUESTION
I am creating a simple django project which deals with storage of name of Books and authors and storing list of to be read (TBR). The TBR table is connected to books table as many to many.
Now, I am confused in how to query the list of books that are in a specific TBR.
The code that I wrote is the following:
...ANSWER
Answered 2020-Apr-17 at 13:52You should use book.all()
try this
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install BookManager
You can use BookManager like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the BookManager component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .
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