source
Created by: Andrew
This commit is contained in:
Andrew
307
trunk/Common/Data/Datum.cs
Normal file
307
trunk/Common/Data/Datum.cs
Normal file
@@ -0,0 +1,307 @@
|
||||
using System;
|
||||
using System.Collections;
|
||||
using System.Collections.Generic;
|
||||
using System.Data;
|
||||
using System.Dynamic;
|
||||
using MySql.Data.MySqlClient;
|
||||
|
||||
namespace KartExtreme.Data
|
||||
{
|
||||
public class Datums : IEnumerable<Datum>
|
||||
{
|
||||
private List<Datum> Values { get; set; }
|
||||
private string Table { get; set; }
|
||||
|
||||
public Datums(string table = null)
|
||||
{
|
||||
this.Table = table;
|
||||
}
|
||||
|
||||
internal void PopulateInternal(string fields, string constraints)
|
||||
{
|
||||
this.Values = new List<Datum>();
|
||||
|
||||
string query = string.Format("SELECT {0} FROM {1}{2}", fields == null ? "*" : Database.CorrectFields(fields), this.Table, constraints != null ? " WHERE " + constraints : string.Empty);
|
||||
|
||||
using (MySqlDataReader reader = MySqlHelper.ExecuteReader(Database.ConnectionString, query))
|
||||
{
|
||||
while (reader.Read())
|
||||
{
|
||||
Dictionary<string, object> dictionary = new Dictionary<string, object>();
|
||||
|
||||
for (int i = 0; i < reader.FieldCount; i++)
|
||||
{
|
||||
dictionary.Add(reader.GetName(i), reader.GetValue(i));
|
||||
}
|
||||
|
||||
this.Values.Add(new Datum(this.Table, dictionary));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
internal void PopulateInternalFree(string query)
|
||||
{
|
||||
this.Values = new List<Datum>();
|
||||
|
||||
using (MySqlDataReader reader = MySqlHelper.ExecuteReader(Database.ConnectionString, query))
|
||||
{
|
||||
while (reader.Read())
|
||||
{
|
||||
Dictionary<string, object> dictionary = new Dictionary<string, object>();
|
||||
|
||||
for (int i = 0; i < reader.FieldCount; i++)
|
||||
{
|
||||
dictionary.Add(reader.GetName(i), reader.GetValue(i));
|
||||
}
|
||||
|
||||
this.Values.Add(new Datum(this.Table, dictionary));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public dynamic Populate()
|
||||
{
|
||||
this.PopulateInternal(null, null);
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
public dynamic Populate(string constraints, params object[] args)
|
||||
{
|
||||
this.PopulateInternal(null, string.Format(constraints, args));
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
public dynamic PopulateWith(string fields)
|
||||
{
|
||||
this.PopulateInternal(fields, null);
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
public dynamic PopulateWith(string fields, string constraints, params object[] args)
|
||||
{
|
||||
this.PopulateInternal(fields, string.Format(constraints, args));
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
public dynamic PopulateFree(string query)
|
||||
{
|
||||
this.PopulateInternalFree(query);
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
public IEnumerator<Datum> GetEnumerator()
|
||||
{
|
||||
foreach (Datum loopDatum in this.Values)
|
||||
{
|
||||
yield return loopDatum;
|
||||
}
|
||||
}
|
||||
|
||||
IEnumerator IEnumerable.GetEnumerator()
|
||||
{
|
||||
return (IEnumerator)this.GetEnumerator();
|
||||
}
|
||||
}
|
||||
|
||||
public class Datum : DynamicObject
|
||||
{
|
||||
public string Table { get; private set; }
|
||||
|
||||
internal Dictionary<string, object> Dictionary { get; set; }
|
||||
|
||||
public Datum(string table)
|
||||
{
|
||||
this.Table = table;
|
||||
this.Dictionary = new Dictionary<string, object>();
|
||||
}
|
||||
|
||||
internal Datum(string table, Dictionary<string, object> values)
|
||||
{
|
||||
this.Table = table;
|
||||
this.Dictionary = values;
|
||||
}
|
||||
|
||||
internal void Populate(string query)
|
||||
{
|
||||
using (MySqlDataReader reader = MySqlHelper.ExecuteReader(Database.ConnectionString, query))
|
||||
{
|
||||
if (reader.RecordsAffected > 1)
|
||||
{
|
||||
throw new RowNotUniqueException();
|
||||
}
|
||||
|
||||
if (!reader.HasRows)
|
||||
{
|
||||
throw new RowNotInTableException();
|
||||
}
|
||||
|
||||
reader.Read();
|
||||
|
||||
for (int i = 0; i < reader.FieldCount; i++)
|
||||
{
|
||||
string name = reader.GetName(i);
|
||||
object value = reader.GetValue(i);
|
||||
|
||||
if (this.Dictionary.ContainsKey(name))
|
||||
{
|
||||
this.Dictionary[name] = value;
|
||||
}
|
||||
else
|
||||
{
|
||||
this.Dictionary.Add(name, value);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
public dynamic Populate(string constraints, params object[] args)
|
||||
{
|
||||
this.Populate(string.Format("SELECT * FROM {0} WHERE {1}", this.Table, string.Format(constraints, args)));
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
public dynamic PopulateWith(string fields, string constraints, params object[] args)
|
||||
{
|
||||
this.Populate(string.Format("SELECT {0} FROM {1} WHERE {2}", Database.CorrectFields(fields), this.Table, string.Format(constraints, args)));
|
||||
|
||||
return this;
|
||||
}
|
||||
|
||||
public void Insert()
|
||||
{
|
||||
string fields = "( ";
|
||||
|
||||
int processed = 0;
|
||||
|
||||
foreach (KeyValuePair<string, object> loopPair in this.Dictionary)
|
||||
{
|
||||
fields += loopPair.Key;
|
||||
processed++;
|
||||
|
||||
if (processed < this.Dictionary.Count)
|
||||
{
|
||||
fields += ", ";
|
||||
}
|
||||
}
|
||||
|
||||
fields += " ) VALUES ( ";
|
||||
|
||||
processed = 0;
|
||||
|
||||
foreach (KeyValuePair<string, object> loopPair in this.Dictionary)
|
||||
{
|
||||
fields += string.Format("'{0}'", loopPair.Value is bool ? (((bool)loopPair.Value) ? 1 : 0) : loopPair.Value);
|
||||
processed++;
|
||||
|
||||
if (processed < this.Dictionary.Count)
|
||||
{
|
||||
fields += ", ";
|
||||
}
|
||||
}
|
||||
|
||||
fields += " )";
|
||||
|
||||
Database.Execute("INSERT INTO {0} {1}", this.Table, fields);
|
||||
}
|
||||
|
||||
public void Update(string constraints, params object[] args)
|
||||
{
|
||||
int processed = 0;
|
||||
|
||||
string fields = string.Empty;
|
||||
|
||||
foreach (KeyValuePair<string, object> loopPair in this.Dictionary)
|
||||
{
|
||||
fields += string.Format("{0}='{1}'", loopPair.Key, loopPair.Value is bool ? (((bool)loopPair.Value) ? 1 : 0) : loopPair.Value);
|
||||
processed++;
|
||||
|
||||
if (processed < this.Dictionary.Count)
|
||||
{
|
||||
fields += ", ";
|
||||
}
|
||||
}
|
||||
|
||||
Database.Execute("UPDATE {0} SET {1} WHERE {2}", this.Table, fields, string.Format(constraints, args));
|
||||
}
|
||||
|
||||
public override bool TryGetMember(GetMemberBinder binder, out object result)
|
||||
{
|
||||
if (this.Dictionary.ContainsKey(binder.Name))
|
||||
{
|
||||
if (this.Dictionary[binder.Name] is DBNull)
|
||||
{
|
||||
result = null;
|
||||
}
|
||||
else if (this.Dictionary[binder.Name] is byte && Meta.IsBool(this.Table, binder.Name))
|
||||
{
|
||||
result = (byte)this.Dictionary[binder.Name] > 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
result = this.Dictionary[binder.Name];
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
else
|
||||
{
|
||||
result = default(object);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
public override bool TrySetMember(SetMemberBinder binder, object value)
|
||||
{
|
||||
if (value is DateTime)
|
||||
{
|
||||
if (Meta.IsDate(this.Table, binder.Name))
|
||||
{
|
||||
value = ((DateTime)value).ToString("yyyy-MM-dd");
|
||||
}
|
||||
else if (Meta.IsDateTime(this.Table, binder.Name))
|
||||
{
|
||||
value = ((DateTime)value).ToString("yyyy-MM-dd HH:mm:ss");
|
||||
}
|
||||
}
|
||||
|
||||
if (this.Dictionary.ContainsKey(binder.Name))
|
||||
{
|
||||
this.Dictionary[binder.Name] = value;
|
||||
}
|
||||
else
|
||||
{
|
||||
this.Dictionary.Add(binder.Name, value);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
public override string ToString()
|
||||
{
|
||||
string result = this.Table + " [ ";
|
||||
|
||||
int processed = 0;
|
||||
|
||||
foreach (KeyValuePair<string, object> value in this.Dictionary)
|
||||
{
|
||||
result += value.Key;
|
||||
processed++;
|
||||
|
||||
if (processed < this.Dictionary.Count)
|
||||
{
|
||||
result += ", ";
|
||||
}
|
||||
}
|
||||
|
||||
result += " ]";
|
||||
|
||||
return result;
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user