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using System.Data;
namespace CrupestApi.Commons.Crud.Migrations;
public class TableColumn : IEquatable<TableColumn>
{
public TableColumn(string name, string type, bool isNullable, int primaryKey)
{
Name = name.ToLowerInvariant();
Type = type.ToLowerInvariant();
IsNullable = isNullable;
PrimaryKey = primaryKey;
}
public string Name { get; set; }
public string Type { get; set; }
public bool IsNullable { get; set; }
/// <summary>
/// 0 if not primary key. 1-based index if in primary key.
/// </summary>
public int PrimaryKey { get; set; }
bool IEquatable<TableColumn>.Equals(TableColumn? other)
{
if (other is null)
{
return false;
}
return Name == other.Name && Type == other.Type && IsNullable == other.IsNullable && PrimaryKey == other.PrimaryKey;
}
public override bool Equals(object? obj)
{
return Equals(obj as TableColumn);
}
public override int GetHashCode()
{
return HashCode.Combine(Name, Type, IsNullable, PrimaryKey);
}
}
public class Table
{
public Table(string name)
{
Name = name;
}
public string Name { get; set; }
public List<TableColumn> Columns { get; set; } = new List<TableColumn>();
}
public interface IDatabaseMigrator
{
Table GetTable(IDbConnection dbConnection, string name);
Table ConvertTableInfoToTable(TableInfo tableInfo);
string GenerateCreateTableColumnSqlSegment(TableColumn column);
string GenerateCreateTableSql(string tableName, IEnumerable<TableColumn> columns);
bool TableExists(IDbConnection connection, string tableName);
bool NeedMigrate(IDbConnection dbConnection, TableInfo tableInfo);
bool CanAutoMigrate(IDbConnection dbConnection, TableInfo tableInfo);
void AutoMigrate(IDbConnection dbConnection, TableInfo tableInfo);
}
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