Open Source Extensible Enterprise n-tier Application Framework with Multilayered Architecture

using System;
using System.Data;
using System.Data.Common;
using SiberTek.Xenta.Data.Entities;
using SiberTek.Xenta.Data.Entities.Collections;
using SiberTek.Xenta.Data.Utils;
using SiberTek.Xenta.Enums;

namespace SiberTek.Xenta.Data.Providers
{
    public class PublicationDataProvider : DataProviderBase, IPublicationDataProvider
    {
        #region Methods
        public bool InsertPublication(int languageID, int authorID, PublicationType type, string title, string description, string text, bool isActive, DateTime createdOn, DateTime? publishedOn, DateTime updatedOn, out int publicationID)
        {
            bool res = false;
            publicationID = 0;

            using(DbCommand cmd = DataBase.GetStoredProcCommand("Publications_Insert"))
            {
                DbCommandHelper.AddInt32(DataBase, cmd, "LanguageID", languageID);
                DbCommandHelper.AddInt32(DataBase, cmd, "AuthorID", authorID);
                DbCommandHelper.AddInt32(DataBase, cmd, "Type", (int)type);
                DbCommandHelper.AddString(DataBase, cmd, "Title", title);
                DbCommandHelper.AddString(DataBase, cmd, "Description", description);
                DbCommandHelper.AddString(DataBase, cmd, "Text", text);
                DbCommandHelper.AddBoolean(DataBase, cmd, "IsActive", isActive);
                DbCommandHelper.AddDateTime(DataBase, cmd, "CreatedOn", createdOn);
                if(publishedOn.HasValue)
                {
                    DbCommandHelper.AddDateTime(DataBase, cmd, "PublishedOn", publishedOn.Value);
                }
                DbCommandHelper.AddDateTime(DataBase, cmd, "UpdatedOn", updatedOn);
                DbCommandHelper.AddOutInt32(DataBase, cmd, "PublicationID");

                res = DataBase.ExecuteNonQuery(cmd) > 0;

                if(res)
                {
                    publicationID = DbCommandHelper.GeInt32(DataBase, cmd, "@PublicationID");
                }
            }

            return res;
        }

        public PublicationData GetPublication(int publicationID)
        {
            PublicationData data = null;

            if(publicationID > 0)
            {
                using(DbCommand cmd = DataBase.GetStoredProcCommand("Publications_Select"))
                {
                    DbCommandHelper.AddInt32(DataBase, cmd, "PublicationID", publicationID);

                    using(IDataReader reader = DataBase.ExecuteReader(cmd))
                    {
                        if(reader.Read())
                        {
                            data = ReadData(reader);
                        }
                    }
                }
            }

            return data;
        }

        public PublicationDataCollection GetAllPublications(string searchTerm, int? languageID, int? authorID, PublicationType? type, int? tagID, DateTime? createdOnStart, DateTime? createdOnEnd, DateTime? publishedOnStart, DateTime? publishedOnEnd, bool showHidden, int startIndex, int count, out int totalCount)
        {
            PublicationDataCollection dataCollection = new PublicationDataCollection();

            using(DbCommand cmd = DataBase.GetStoredProcCommand("Publications_SelectAll"))
            {
                DbCommandHelper.AddString(DataBase, cmd, "SearchTerm", searchTerm);
                if(languageID.HasValue)
                {
                    DbCommandHelper.AddInt32(DataBase, cmd, "LanguageID", languageID.Value);
                }
                if(authorID.HasValue)
                {
                    DbCommandHelper.AddInt32(DataBase, cmd, "AuthorID", authorID.Value);
                }
                if(type.HasValue)
                {
                    DbCommandHelper.AddInt32(DataBase, cmd, "Type", (int)type.Value);
                }
                if(tagID.HasValue)
                {
                    DbCommandHelper.AddInt32(DataBase, cmd, "TagID", tagID.Value);
                }
                if(createdOnStart.HasValue)
                {
                    DbCommandHelper.AddDateTime(DataBase, cmd, "CreatedOnStart", createdOnStart.Value);
                }
                if(createdOnEnd.HasValue)
                {
                    DbCommandHelper.AddDateTime(DataBase, cmd, "CreatedOnEnd", createdOnEnd.Value);
                }
                if(publishedOnStart.HasValue)
                {
                    DbCommandHelper.AddDateTime(DataBase, cmd, "PublishedOnStart", publishedOnStart.Value);
                }
                if(publishedOnEnd.HasValue)
                {
                    DbCommandHelper.AddDateTime(DataBase, cmd, "PublishedOnEnd", publishedOnEnd.Value);
                }
                DbCommandHelper.AddBoolean(DataBase, cmd, "ShowHidden", showHidden);
                DbCommandHelper.AddInt32(DataBase, cmd, "StartIndex", startIndex);
                DbCommandHelper.AddInt32(DataBase, cmd, "Count", count);
                DbCommandHelper.AddOutInt32(DataBase, cmd, "TotalCount");

                using(IDataReader reader = DataBase.ExecuteReader(cmd))
                {
                    while(reader.Read())
                    {
                        dataCollection.Add(ReadData(reader));
                    }
                }

                totalCount = DbCommandHelper.GeInt32(DataBase, cmd, "@TotalCount");
            }

            return dataCollection;
        }

        public bool UpdatePublication(int publicationID, int languageID, int authorID, PublicationType type, string title, string description, string text, bool isActive, DateTime createdOn, DateTime? publishedOn, DateTime updatedOn)
        {
            bool res = false;

            if(publicationID > 0)
            {
                using(DbCommand cmd = DataBase.GetStoredProcCommand("Publications_Update"))
                {
                    DbCommandHelper.AddInt32(DataBase, cmd, "PublicationID", publicationID);
                    DbCommandHelper.AddInt32(DataBase, cmd, "LanguageID", languageID);
                    DbCommandHelper.AddInt32(DataBase, cmd, "AuthorID", authorID);
                    DbCommandHelper.AddInt32(DataBase, cmd, "Type", (int)type);
                    DbCommandHelper.AddString(DataBase, cmd, "Title", title);
                    DbCommandHelper.AddString(DataBase, cmd, "Description", description);
                    DbCommandHelper.AddString(DataBase, cmd, "Text", text);
                    DbCommandHelper.AddBoolean(DataBase, cmd, "IsActive", isActive);
                    DbCommandHelper.AddDateTime(DataBase, cmd, "CreatedOn", createdOn);
                    if(publishedOn.HasValue)
                    {
                        DbCommandHelper.AddDateTime(DataBase, cmd, "PublishedOn", publishedOn.Value);
                    }
                    DbCommandHelper.AddDateTime(DataBase, cmd, "UpdatedOn", updatedOn);

                    res = DataBase.ExecuteNonQuery(cmd) > 0;
                }
            }

            return res;
        }

        public bool DeletePublication(int publicationID)
        {
            bool res = false;

            if(publicationID > 0)
            {
                using(DbCommand cmd = DataBase.GetStoredProcCommand("Publications_Delete"))
                {
                    DbCommandHelper.AddInt32(DataBase, cmd, "PublicationID", publicationID);

                    res = DataBase.ExecuteNonQuery(cmd) > 0;
                }
            }

            return res;
        }
        #endregion

        #region Utilities
        private static PublicationData ReadData(IDataReader reader)
        {
            PublicationData data = new PublicationData();

            data.PublicationID = DataReaderHelper.ReadInt32(reader, "PublicationID");
            data.LanguageID = DataReaderHelper.ReadInt32(reader, "LanguageID");
            data.AuthorID = DataReaderHelper.ReadInt32(reader, "AuthorID");
            data.Type = (PublicationType)DataReaderHelper.ReadInt32(reader, "Type");
            data.Title = DataReaderHelper.ReadString(reader, "Title");
            data.Description = DataReaderHelper.ReadString(reader, "Description");
            data.Text = DataReaderHelper.ReadString(reader, "Text");
            data.IsActive = DataReaderHelper.ReadBoolean(reader, "IsActive");
            data.CreatedOn = DataReaderHelper.ReadDateTime(reader, "CreatedOn");
            data.PublishedOn = DataReaderHelper.ReadNullableDateTime(reader, "PublishedOn");
            data.UpdatedOn = DataReaderHelper.ReadDateTime(reader, "UpdatedOn");

            return data;
        }
        #endregion
    }
}