Proyectos de Subversion Iphone Microlearning

//
//  QuizDao.swift
//  twogetskills
//
//  Created by Efrain Yanez Recanatini on 2/21/22.
//

import UIKit
import SQLite3

class QuizDao {
    let SQLITE_TRANSIENT = unsafeBitCast(-1, to: sqlite3_destructor_type.self)
    var db = Database().open()


    func selectByUuid(uuid: String)-> QuizModel {
        var model = QuizModel()
        var query = "SELECT " + Constants.TABLE_QUIZ_FIELD_UUID + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_COMPANY_UUID + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_NAME + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_TEXT + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_FAILED + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_POINTS + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_MINIMUM_POINTS_REQUIRED + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_MAX_TIME
        query = query + " FROM " + Constants.TABLE_QUIZ
        query = query + " WHERE " + Constants.TABLE_QUIZ_FIELD_UUID + " = '\(uuid)' LIMIT 1;"
        var statement : OpaquePointer? = nil
        
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if(sqlite3_step(statement) == SQLITE_ROW) {
                model.uuid = String(describing: String(cString: sqlite3_column_text(statement, 0)))
                model.companyUuid = String(describing: String(cString: sqlite3_column_text(statement, 1)))
                model.name = String(describing: String(cString: sqlite3_column_text(statement, 2)))
                model.text = String(describing: String(cString: sqlite3_column_text(statement, 3)))
                model.failed = String(describing: String(cString: sqlite3_column_text(statement, 4)))
                model.points = Int(sqlite3_column_int(statement, 5))
                model.minimumPointsRequired = Int(sqlite3_column_int(statement, 6))
                model.maxTime = Int(sqlite3_column_int(statement, 7))
                   
            }
        }
        sqlite3_finalize(statement)
        return model
    }
        
    func insert(quiz: QuizModel) {
        var query = "INSERT INTO " + Constants.TABLE_QUIZ
        query = query + " ( " + Constants.TABLE_QUIZ_FIELD_UUID + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_COMPANY_UUID + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_NAME + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_TEXT + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_FAILED + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_POINTS + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_MINIMUM_POINTS_REQUIRED + ", "
        query = query + Constants.TABLE_QUIZ_FIELD_MAX_TIME + " ) VALUES (?, ?, ?, ?, ?, ?, ?, ?);"
        var statement : OpaquePointer?
        
           
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
                   
            sqlite3_bind_text(statement, 1, quiz.uuid, -1, SQLITE_TRANSIENT)
            sqlite3_bind_text(statement, 2, quiz.companyUuid, -1, SQLITE_TRANSIENT)
            sqlite3_bind_text(statement, 3, quiz.name , -1, SQLITE_TRANSIENT)
            sqlite3_bind_text(statement, 4, quiz.text , -1, SQLITE_TRANSIENT)
            sqlite3_bind_text(statement, 5, quiz.failed , -1, SQLITE_TRANSIENT)
            sqlite3_bind_int(statement, 6, Int32(quiz.points))
            sqlite3_bind_int(statement, 7, Int32(quiz.minimumPointsRequired))
            sqlite3_bind_int(statement, 8, Int32(quiz.maxTime))

            if (sqlite3_step(statement) != SQLITE_DONE) {
                print("No se pudo insertar un registro en la tabla: \(Constants.TABLE_QUIZ)")
            }
           
        } else {
            print("Fallo la preparación para insertar un registro en la tabla: \(Constants.TABLE_QUIZ)")
        }
       
        sqlite3_finalize(statement)
    }

    func update(quiz : QuizModel) {
        var query = "UPDATE " + Constants.TABLE_QUIZ
        query = query + " SET " + Constants.TABLE_QUIZ_FIELD_NAME + " = '\(quiz.name)', "
        query = query + Constants.TABLE_QUIZ_FIELD_TEXT + " = '\(quiz.text)', "
        query = query + Constants.TABLE_QUIZ_FIELD_FAILED + " = '\(quiz.failed)', "
        query = query + Constants.TABLE_QUIZ_FIELD_POINTS + " = '\(quiz.points)', "
        query = query + Constants.TABLE_QUIZ_FIELD_MINIMUM_POINTS_REQUIRED + " = '\(quiz.minimumPointsRequired)', "
        query = query + Constants.TABLE_QUIZ_FIELD_MAX_TIME + " = '\(quiz.maxTime)' "
        query = query + " WHERE " + Constants.TABLE_COMPANY_FIELD_UUID + " = '\(quiz.uuid)';"
        var statement : OpaquePointer? = nil
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if (sqlite3_step(statement) != SQLITE_DONE) {
                print("No se pudo actualizar un registro de la tabla: \(Constants.TABLE_QUIZ) ")
            }
        } else {
            print("Fallo la preparación para actualizar un registro de la tabla: \(Constants.TABLE_QUIZ)")
        }
        sqlite3_finalize(statement)
    }

    func remove(uuid: String) {
        let query = "DELETE FROM " + Constants.TABLE_QUIZ +
            " WHERE " + Constants.TABLE_QUIZ_FIELD_UUID + " = '\(uuid)' ;"
        var statement : OpaquePointer? = nil
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if (sqlite3_step(statement) != SQLITE_DONE) {
                print("No se pudo borrar el registro con el uuid: \(uuid)  de la tabla: \(Constants.TABLE_QUIZ)")
            }
        } else {
            print("Fallo la preparación para borrar el registro con el uuid: \(uuid) de la tabla \(Constants.TABLE_QUIZ) ")
        }
        sqlite3_finalize(statement)
    }

    func removeAll() {
        let query = "DELETE FROM " + Constants.TABLE_QUIZ + ";"
        var statement : OpaquePointer? = nil
        if (sqlite3_prepare_v2(db, query, -1, &statement, nil) == SQLITE_OK) {
            if (sqlite3_step(statement) != SQLITE_DONE) {
                print("No se pudo borrar todos los registros de la tabla: \(Constants.TABLE_QUIZ) ")
            }
        } else {
            print("Fallo la preparación de borrar todos los registros de la tabla: \(Constants.TABLE_QUIZ)")
        }
        sqlite3_finalize(statement)
    }
    
}