Tag: WebDev

I'm working on a Spring Boot application and I'm facing an issue with handling nested objects within an entity. I have an entity called TopicEntity, which has a field topicContent defined as a Map<Integer, String>. This field is used to store key-value pairs of topic content, where the key represents the order index and the value represents the content. Now, I need to extend this functionality to support storing nested objects within topicContent. Each nested object contains a question, correct answer, and incorrect answers. Here's an example of the desired JSON structure: json structure I've tried changing the mapping of topicContent to Map<Integer, Object>, but I encountered these errors: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' Caused by: org.hibernate.MappingException: collection elem

I have a snowflake model in which a lot of source tables are loaded in different hours of each day. A standard processing with streams, tasks, etc. loads that data into 4 final tables, tx_1, tx_2, tx_3 and tx_4. Now the users are requesting that wants to create another final table that is loaded when all the previous 4 final tables are loaded through each process date (because they need to join this 4 tables). What i have so far is that i created and additional root task replacing the previous root tasks (one for each data source), this root task has the condition of, when any of the source tables streams has data (using OR condition), all the next level tasks are triggered, but how in one period of time, only one of this streams is going to have data, only one of those child tasks is going to proceed. Finally i added one final task that is triggered when all the previous final tasks are executed. I tested loading data and all of this "final" ta

I have a custom component of the ant design pagination. I need the table size selection options: 10, 20, 30, 50, All. When user is choosing All it need to set PageSize to 1.000.000. I figured out how to get around the restriction that it does not allow the use of words in the pageSizeOptions array, but there was a problem with the fact that when I select my "All" value, the value in the selector does not change and remains the previous one. I am attaching a part of the code that I wrote. <PaginationComponent disabled={disabled} showSizeChanger pageSize={pagination.perPage} pageSizeOptions={['10', '20', '30', '50', 'All']} onChange={onChangeHandler} onShowSizeChange={(page, pageSize) => onShowSizeChangeHandler(page, isNaN(pageSize) ? 1000000 : pageSize)} current={pagination.currentPage} total={pagination.totalCount} locale={{items_per_page: 'on page'}}/>;

I'm looking for the best practice to avoid data leakage. I have 1 feature that requires mode imputation. The model is XGBoost Classifier. These are the steps that I planned: Split data in random 80% training set - 20% test set Apply mode imputation on training and test set independently Execute RandomSearchCV on the training set for hyperparameter tuning Train model on the whole training set using the best parameter set found Evaluate model on unseen test set Now, my doubt is: is it okay to perform the mode imputation on the whole training set and then perform RandomSearchCV? I thought that data leakage applies only when evaluating with the unseen test set. Or should I perform the imputation in each fold of RandomSearchCV to avoid data leakage? if so, how can I do it? I saw Sklearn pipes, but I cannot figure out how to apply the mode imputation only to the specific feature I need Thank you in advance!

I want to create a dependency matrix for a project developed in Flutter. I used Android Studio to develop this project but I noticed that Android Studio does not make it available in "Code" -> "Analyze Code" -> "Dependecy Matrix" as IntelliJ IDEA does. So I tried to create this matrix by opening the project on IntelliJ IDEA and, after several errors resolved, I get this massage "No Classes Found - No class files were found for the specified source files. DSM analysis can't be performed." (https://i.sstatic.net/eWw3R7vI.png)](https://i.sstatic.net/eWw3R7vI.png) What can I do? I can't figure out the problem and can't figure out if I can actually create the dependency matrix on a Flutter project. Does anyone know how I can do this or have any alternatives? The dependencies

class APIFeatures { constructor(query, queryString) { this.query = query; this.queryString = queryString; } filter() { const queryObj = { ...this.queryString }; const excludedFields = ['page', 'sort', 'limit', 'fields']; excludedFields.forEach(el => delete queryObj[el]); // 1B) Advanced filtering let queryStr = JSON.stringify(queryObj); queryStr = queryStr.replace(/\b(gte|gt|lte|lt)\b/g, match => `$${match}`); this.query = this.query.find(JSON.parse(queryStr)); return this; } const features = new APIFeatures(Tour.find(), req.query).filter(); const tours = await features.query; when we write Tour.find() it returns a promise which is saved to query variable of APIFeatures object. this variable maybe in promise pending state is used by filter function and a method find on the result is invoked. After that we are awaiting the features.query which gives the final result. Can anyone tell me why we are awai

I want to remove the ads from the page, but when I remove the ads code and delete the edit, it shows me an error. org.xml.sax.SAXParseException; lineNumber: 8; columnNumber: 52; Element type "b:include" must be followed by either attribute specifications, ">" or "/>". This is my page:https://samiqws1239.blogspot.com/2024/04/how-to-hack-android-device-with-adb.html I saw the line, but there was not the slightest error

I have an issue with type narrowing and I can't get it to work. The type of event.data is { id: string; } | { progress: number; } and not { id: string; } Any idea what's wrong? Typescript Playground const events = ['event1', 'eve

import ctypes def mouse_released() -> bool: mouse_state = ctypes.windll.user32.GetAsyncKeyState(0x01) if mouse_state: while ctypes.windll.user32.GetAsyncKeyState(0x01): continue # is pressing else: print('released') return mouse_state != 0 # released return False while True: mouse_released() This program tells if the left mouse button was released. Problem: in general it works correctly. But sometimes at the very beginning it prints "released", even though nothing was pressed even a few seconds before. I tried to change the GetAsyncKeyState with GetKeyState. It seemed to solve the mentioned problem, but this way, the function indicates the button being pressed only every second time, which is a complete mistery to me.

The Error is "The instance of entity type 'Person' cannot be tracked because another instance with the same key value for {'Id'} is already being tracked. When attaching existing entities, ensure that only one entity instance with a given key value is attached. Consider using". public async Task<Person> GetPersonById(Guid Id) { return await _context.Person.AsNoTracking().Where(t => t.Id == Id).FirstOrDefaultAsync(); } public async Task<Guid> EditPerson(Person Updateperson) { if (Updateperson.Id != null) { Updateperson.ModifiedOn = DateTime.Now; Updateperson.ModifiedBy = Updateperson.CreatedBy; _context.Update(Updateperson); await _context.SaveChangesAsync(); return Updateperson.Id; } else { return Guid.Empty; } } In the blazor single page application when i edit same record twice without hard refresh it