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Adds SQL Queries for Update, Read and Insert

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This commit is contained in:
Twitchy 2011-08-04 21:53:02 +12:00
parent 7af6f7fae6
commit 2c4625e426
4 changed files with 197 additions and 1 deletions
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141
TShockAPI/DB/IQueryBuilder.cs
View file

@ -13,6 +13,9 @@ namespace TShockAPI.DB
string CreateTable(SqlTable table);
string AlterTable(SqlTable from, SqlTable to);
string DbTypeToString(MySqlDbType type, int? length);
string UpdateValue(string table, List<SqlValue> values, List<SqlValue> wheres);
string InsertValues(string table, List<SqlValue> values);
string ReadColumn(string table, List<SqlValue> wheres);
}
public class SqliteQueryCreator : IQueryBuilder
@ -44,9 +47,79 @@ namespace TShockAPI.DB
CREATE TABLE "main"."Bans" ("IP" TEXT PRIMARY KEY ,"Name" TEXT)
INSERT INTO "main"."Bans" SELECT "IP","Name" FROM "main"."oXHFcGcd04oXHFcGcd04_Bans"
DROP TABLE "main"."oXHFcGcd04oXHFcGcd04_Bans"
*
* Twitchy - Oh. I get it!
*/
}
public string UpdateValue(string table, List<SqlValue> values, List<SqlValue> wheres)
{
var sbvalues = new StringBuilder();
var sbwheres = new StringBuilder();
int count = 0;
foreach (SqlValue value in values)
{
sbvalues.Append(value.Name + "=" + value.Value.ToString());
if (count != values.Count - 1)
sbvalues.Append(",");
count++;
}
count = 0;
foreach (SqlValue where in wheres)
{
sbwheres.Append(where.Name + "=" + where.Value.ToString());
if (count != wheres.Count - 1)
sbvalues.Append(" AND ");
count++;
}
if (wheres.Count > 0)
return "UPDATE '{0}' SET {1} WHERE {2}".SFormat(table, sbvalues.ToString(), sbwheres.ToString());
else
return "UPDATE '{0}' SET {1}".SFormat(table, sbvalues.ToString());
}
public string InsertValues(string table, List<SqlValue> values)
{
var sbnames = new StringBuilder();
var sbvalues = new StringBuilder();
int count = 0;
foreach (SqlValue name in values)
{
sbnames.Append(name.Name);
if (count != values.Count - 1)
sbnames.Append(", ");
count++;
}
count = 0;
foreach (SqlValue value in values)
{
sbvalues.Append(value.Value.ToString());
if (count != values.Count - 1)
sbvalues.Append(", ");
count++;
}
return "INSERT INTO '{0}' ({1}) VALUES ({2})".SFormat(table, sbnames.ToString(), sbvalues.ToString());
}
public string ReadColumn(string table, List<SqlValue> wheres)
{
var sbwheres = new StringBuilder();
int count = 0;
foreach (SqlValue where in wheres)
{
sbwheres.Append(where.Name + "=" + where.Value.ToString());
if (count != wheres.Count - 1)
sbwheres.Append(" AND ");
count++;
}
if(wheres.Count > 0)
return "SELECT * FROM {0} WHERE {1}".SFormat(table, sbwheres.ToString());
else
return "SELECT * FROM {0}".SFormat(table);
}
static readonly Dictionary<MySqlDbType, string> TypesAsStrings = new Dictionary<MySqlDbType, string>
{
@ -92,7 +165,75 @@ namespace TShockAPI.DB
var drop = "DROP TABLE {0}_{1}".SFormat(rstr, from.Name);
return "{0}; {1}; {2}; {3};".SFormat(alter, create, insert, drop);
}
public string UpdateValue(string table, List<SqlValue> values, List<SqlValue> wheres)
{
var sbvalues = new StringBuilder();
var sbwheres = new StringBuilder();
int count = 0;
foreach (SqlValue value in values)
{
sbvalues.Append(value.Name + "=" + value.Value.ToString());
if (count != values.Count - 1)
sbvalues.Append("AND");
count++;
}
count = 0;
foreach (SqlValue where in wheres)
{
sbwheres.Append(where.Name + "=" + where.Value.ToString());
if (count != wheres.Count - 1)
sbvalues.Append(" AND ");
count++;
}
if (wheres.Count > 0)
return "UPDATE {0} SET {1} WHERE {2}".SFormat(table, sbvalues.ToString(), sbwheres.ToString());
else
return "UPDATE {0} SET {1}".SFormat(table, sbvalues.ToString());
}
public string InsertValues(string table, List<SqlValue> values)
{
var sbnames = new StringBuilder();
var sbvalues = new StringBuilder();
int count = 0;
foreach (SqlValue name in values)
{
sbnames.Append(name.Name);
if (count != values.Count - 1)
sbnames.Append(", ");
count++;
}
count = 0;
foreach (SqlValue value in values)
{
sbvalues.Append(value.Value.ToString());
if (count != values.Count - 1)
sbvalues.Append(", ");
count++;
}
return "INSERT INTO {0} ({1}) VALUES ({2})".SFormat(table, sbnames.ToString(), sbvalues.ToString());
}
public string ReadColumn(string table, List<SqlValue> wheres)
{
var sbwheres = new StringBuilder();
int count = 0;
foreach (SqlValue where in wheres)
{
sbwheres.Append(where.Name + "=" + where.Value.ToString());
if (count != wheres.Count - 1)
sbwheres.Append(" AND ");
count++;
}
if (wheres.Count > 0)
return "SELECT * FROM {0} WHERE {1}".SFormat(table, sbwheres.ToString());
else
return "SELECT * FROM {0}".SFormat(table);
}
static readonly Dictionary<MySqlDbType, string> TypesAsStrings = new Dictionary<MySqlDbType, string>
{

53
TShockAPI/DB/SqlValue.cs Normal file
View file

@ -0,0 +1,53 @@
using System.Data;
using MySql.Data.MySqlClient;
using System.Collections.Generic;
namespace TShockAPI.DB
{
public class SqlValue
{
public string Name { get; set; }
public object Value { get; set; }
public SqlValue(string name, object value)
{
Name = name;
Value = value;
}
}
public class SqlTableEditor
{
IDbConnection database;
IQueryBuilder creator;
public SqlTableEditor(IDbConnection db, IQueryBuilder provider)
{
database = db;
creator = provider;
}
public void UpdateValues(string table, List<SqlValue> values, List<SqlValue> wheres)
{
database.Query(creator.UpdateValue(table, values, wheres));
}
public void InsertValues(string table, List<SqlValue> values)
{
database.Query(creator.InsertValues(table, values));
}
public List<object> ReadColumn(string table, string column, List<SqlValue> wheres)
{
List<object> values = new List<object>();
using (var reader = database.QueryReader(creator.ReadColumn(table, wheres)))
{
while (reader.Read())
values.Add(reader.Reader.Get<object>(column));
}
return values;
}
}
}

1
TShockAPI/Extensions/DbExt.cs
View file

@ -87,6 +87,7 @@ namespace TShockAPI.DB
{typeof(decimal), (s, i) => s.GetDecimal(i)},
{typeof(float), (s, i) => s.GetFloat(i)},
{typeof(double), (s, i) => s.GetDouble(i)},
{typeof(object), (s, i) => s.GetValue(i)},
};
public static T Get<T>(this IDataReader reader, string column)

3
TShockAPI/TShockAPI.csproj
View file

@ -98,6 +98,7 @@
<Compile Include="DB\ItemManager.cs" />
<Compile Include="DB\SqlColumn.cs" />
<Compile Include="DB\SqlTable.cs" />
<Compile Include="DB\SqlValue.cs" />
<Compile Include="Extensions\DbExt.cs" />
<Compile Include="DB\GroupManager.cs" />
<Compile Include="DB\UserManager.cs" />
@ -178,7 +179,7 @@
</PropertyGroup>
<ProjectExtensions>
<VisualStudio>
<UserProperties BuildVersion_UpdateAssemblyVersion="True" BuildVersion_UpdateFileVersion="True" BuildVersion_BuildAction="Both" BuildVersion_BuildVersioningStyle="None.None.None.MonthAndDayStamp" BuildVersion_StartDate="2011/6/17" BuildVersion_IncrementBeforeBuild="False" />
<UserProperties BuildVersion_IncrementBeforeBuild="False" BuildVersion_StartDate="2011/6/17" BuildVersion_BuildVersioningStyle="None.None.None.MonthAndDayStamp" BuildVersion_BuildAction="Both" BuildVersion_UpdateFileVersion="True" BuildVersion_UpdateAssemblyVersion="True" />
</VisualStudio>
</ProjectExtensions>
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