/// <summary>
/// Default constructor
/// </summary>
/// <param name="queryMap">The query map</param>
/// <param name="type">The type that contains the <see cref="PropertyInfo"/></param>
/// <param name="property">The property that's getting map.</param>
/// <param name="column">
/// The column.
/// NOTE: The column will be <see cref="null"/> when the <see cref="PropertyInfo"/> is a navigation property!
/// </param>
public PropertyMap(QueryMap queryMap, Type type, PropertyInfo property, IDbProviderColumn column = null) : base()
{
Column = column;
QueryMap = queryMap ?? throw new ArgumentNullException(nameof(queryMap));
Type = type ?? throw new ArgumentNullException(nameof(type));
PropertyInfo = property ?? throw new ArgumentNullException(nameof(property));
Table = QueryMap.Tables.First(x => x.TableName == queryMap.GetTableName(type));
}
/// <summary>
/// Updates the specified <paramref name="model"/>
/// </summary>
/// <param name="model">The model</param>
/// <returns></returns>
public async Task <IFailable <object> > UpdateDataAsync(object model)
{
// Create the result
var result = new Failable <object>();
try
{
// Get the type of the model
var modelType = model.GetType();
// Get the name of the table
var tableName = QueryMap.GetTableName(modelType);
// Get the primary key column
var primaryKeyColumn = QueryMap.Columns.First(x => x.TableName == tableName && x.IsPrimaryKey);
// Get the primary key property
var primaryKeyProperty = modelType.GetProperty(primaryKeyColumn.ColumnName);
// Get the existing model
var existingModel = await DbContext.FindAsync(modelType, primaryKeyProperty.GetValue(model));
// For every property of the model...
// TODO: Better implementation by using AutoMapper!
foreach (var property in modelType.GetProperties())
{
// Update the property value of the existing model
property.SetValue(existingModel, property.GetValue(model));
}
// Mark the existing model for update
DbContext.Update(existingModel);
// Save the changes
await DbContext.SaveChangesAsync();
}
catch (Exception ex)
{
// Set the error
result.ErrorMessage = ex.Message;
}
// Return the result
return(result);
}
/// <summary>
/// Creates and returns a <see cref="QueryMap"/> from the specified <paramref name="dataModel"/>.
/// NOTE: If the model is not set, then the default values are used!
/// </summary>
/// <param name="databaseOptions">The database options</param>
/// <param name="database">The database that contains the mapped table</param>
/// <param name="columns">The columns of the tables</param>
/// <param name="tables">The tables</param>
/// <param name="joins">The joins</param>
/// <param name="dataModel">The data model</param>
/// <returns></returns>
public static QueryMap FromDataModel(BaseDatabaseOptionsDataModel databaseOptions, IDbProviderDatabase database, IEnumerable <IDbProviderTable> tables, IEnumerable <IDbProviderColumn> columns, IEnumerable <JoinMap> joins, QueryMapDataModel dataModel = null)
{
// Create the map
var queryMap = new QueryMap(databaseOptions, database, tables, columns, joins);
// If there is a data model...
if (dataModel != null)
{
queryMap.Id = dataModel.Id;
queryMap.Color = dataModel.Color;
queryMap.Description = dataModel.Description;
queryMap.Name = dataModel.Name;
}
var tableToTypeBuilderMapper = new Dictionary <IDbProviderTable, TypeBuilder>();
// For every table...
foreach (var table in tables)
{
// Create the builder
var typeBuilder = CeidDiplomatikiHelpers.GetTypeBuilder(queryMap.Id + "-" + table.TableName);
// For every table column...
foreach (var column in columns.Where(x => x.TableName == table.TableName))
{
// Create a property
TypeBuilderHelpers.CreateProperty(typeBuilder, column.ColumnName, column.DataType);
}
// Map it
tableToTypeBuilderMapper.Add(table, typeBuilder);
}
// For every join...
foreach (var join in joins)
{
// Get the principle model type builder
var principleModelTypeBuilder = tableToTypeBuilderMapper.First(x => x.Key == join.Table).Value;
// Get the referenced model type builder
var referencedModelTypeBuilder = tableToTypeBuilderMapper.First(x => x.Key == join.ReferencedTable).Value;
// Create the principle navigation property type
var principleNavigationPropertyType = typeof(IEnumerable <>).MakeGenericType(referencedModelTypeBuilder);
// Add it to the principle model
TypeBuilderHelpers.CreateProperty(principleModelTypeBuilder, CeidDiplomatikiHelpers.GetPluralForm(join.ReferencedTable.TableName), principleNavigationPropertyType);
// Add the foreign navigation property type
TypeBuilderHelpers.CreateProperty(referencedModelTypeBuilder, join.Table.TableName, principleModelTypeBuilder);
}
var tableToTypeMapper = new Dictionary <IDbProviderTable, Type>();
// For every table to type builder map...
foreach (var map in tableToTypeBuilderMapper)
{
// Build the type
var type = map.Value.CreateType();
if (joins.Any(x => x.Index == 0 && x.Table.TableName == map.Key.TableName))
{
queryMap.RootType = type;
}
else if (joins.Count() == 0)
{
queryMap.RootType = type;
}
// Map it
tableToTypeMapper.Add(map.Key, type);
}
// Set the types to the query
queryMap.DataModelTypes = tableToTypeMapper.Select(x => x.Value).ToList();
// Create the db context type builder
var dbContextTypeBuilder = CeidDiplomatikiHelpers.GetTypeBuilder(Guid.NewGuid().ToString() + "-DbContext");
// Set the base type
var baseType = typeof(PresenterDbContext);
// Inherit from the PresenterDbContext
dbContextTypeBuilder.SetParent(baseType);
// For every data model type...
foreach (var map in tableToTypeMapper)
{
// Create the DbSet type that will be set as a property to the DbContext
var dbSetType = typeof(DbSet <>).MakeGenericType(map.Value);
// Add it to the type
TypeBuilderHelpers.CreateProperty(dbContextTypeBuilder, map.Key.TableName, dbSetType);
}
// Create the constructors
TypeBuilderHelpers.CreatePassThroughConstructors(dbContextTypeBuilder, baseType);
// Create the db context type
queryMap.DbContextType = dbContextTypeBuilder.CreateType();
// If there is a data model...
// NOTE: We create the column and the data presenter maps at the end of the initialization
// because some properties of the query map are required to get set!
if (dataModel != null)
{
dataModel.PropertyMaps.ForEach(model => queryMap.Add(PropertyMap.FromDataModel(queryMap, queryMap.DataModelTypes.First(x => queryMap.GetTableName(x) == model.TableName), dataModel.PropertyMaps.First(x => x.TableName == model.TableName && x.ColumnName == model.ColumnName))));
dataModel.DataGridPresenterMaps.ForEach(model => queryMap.Add(DataGridPresenterMap.FromDataModel(queryMap, model)));
}
// Return the map
return(queryMap);
}
/// <summary>
/// Default constructor
/// </summary>
/// <param name="presenterMap">The data grid presenter map</param>
public DataGridPresenterDataStorage(DataGridPresenterMap presenterMap) : base(presenterMap)
{
DataGridMap = PresenterMap.DataGrids.First(x => x.Type == QueryMap.RootType);
PrimaryKeyColumn = QueryMap.Columns.First(x => x.IsPrimaryKey && x.TableName == QueryMap.GetTableName(QueryMap.RootType));
PrimaryKeyProperty = QueryMap.RootType.GetProperty(PrimaryKeyColumn.ColumnName);
}
