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233 lines
13 KiB
C#
233 lines
13 KiB
C#
using FreeSql.Internal;
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using FreeSql.Internal.Model;
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using Newtonsoft.Json.Linq;
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using Npgsql;
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using Npgsql.LegacyPostgis;
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using NpgsqlTypes;
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using System;
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using System.Collections;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Data.Common;
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using System.Globalization;
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using System.Linq;
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using System.Net;
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using System.Numerics;
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using System.Text;
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namespace FreeSql.PostgreSQL
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{
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class PostgreSQLUtils : CommonUtils
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{
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public PostgreSQLUtils(IFreeSql orm) : base(orm)
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{
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}
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static Array getParamterArrayValue(Type arrayType, object value, object defaultValue)
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{
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var valueArr = value as Array;
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var len = valueArr.GetLength(0);
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var ret = Array.CreateInstance(arrayType, len);
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for (var a = 0; a < len; a++)
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{
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var item = valueArr.GetValue(a);
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ret.SetValue(item == null ? defaultValue : getParamterValue(item.GetType(), item, 1), a);
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}
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return ret;
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}
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static Dictionary<string, Func<object, object>> dicGetParamterValue = new Dictionary<string, Func<object, object>> {
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{ typeof(JToken).FullName, a => string.Concat(a) }, { typeof(JToken[]).FullName, a => getParamterArrayValue(typeof(string), a, null) },
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{ typeof(JObject).FullName, a => string.Concat(a) }, { typeof(JObject[]).FullName, a => getParamterArrayValue(typeof(string), a, null) },
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{ typeof(JArray).FullName, a => string.Concat(a) }, { typeof(JArray[]).FullName, a => getParamterArrayValue(typeof(string), a, null) },
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{ typeof(uint).FullName, a => long.Parse(string.Concat(a)) }, { typeof(uint[]).FullName, a => getParamterArrayValue(typeof(long), a, 0) }, { typeof(uint?[]).FullName, a => getParamterArrayValue(typeof(long?), a, null) },
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{ typeof(ulong).FullName, a => decimal.Parse(string.Concat(a)) }, { typeof(ulong[]).FullName, a => getParamterArrayValue(typeof(decimal), a, 0) }, { typeof(ulong?[]).FullName, a => getParamterArrayValue(typeof(decimal?), a, null) },
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{ typeof(ushort).FullName, a => int.Parse(string.Concat(a)) }, { typeof(ushort[]).FullName, a => getParamterArrayValue(typeof(int), a, 0) }, { typeof(ushort?[]).FullName, a => getParamterArrayValue(typeof(int?), a, null) },
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{ typeof(byte).FullName, a => short.Parse(string.Concat(a)) }, { typeof(byte[]).FullName, a => getParamterArrayValue(typeof(short), a, 0) }, { typeof(byte?[]).FullName, a => getParamterArrayValue(typeof(short?), a, null) },
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{ typeof(sbyte).FullName, a => short.Parse(string.Concat(a)) }, { typeof(sbyte[]).FullName, a => getParamterArrayValue(typeof(short), a, 0) }, { typeof(sbyte?[]).FullName, a => getParamterArrayValue(typeof(short?), a, null) },
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{ typeof(char).FullName, a => string.Concat(a).Replace('\0', ' ').ToCharArray().FirstOrDefault() },
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{ typeof(BigInteger).FullName, a => BigInteger.Parse(string.Concat(a), System.Globalization.NumberStyles.Any) }, { typeof(BigInteger[]).FullName, a => getParamterArrayValue(typeof(BigInteger), a, 0) }, { typeof(BigInteger?[]).FullName, a => getParamterArrayValue(typeof(BigInteger?), a, null) },
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{ typeof(NpgsqlPath).FullName, a => {
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var path = (NpgsqlPath)a;
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try { int count = path.Count; return path; } catch { return new NpgsqlPath(new NpgsqlPoint(0, 0)); }
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} },
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{ typeof(NpgsqlPath[]).FullName, a => getParamterArrayValue(typeof(NpgsqlPath), a, new NpgsqlPath(new NpgsqlPoint(0, 0))) },
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{ typeof(NpgsqlPath?[]).FullName, a => getParamterArrayValue(typeof(NpgsqlPath?), a, null) },
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{ typeof(NpgsqlPolygon).FullName, a => {
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var polygon = (NpgsqlPolygon)a;
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try { int count = polygon.Count; return polygon; } catch { return new NpgsqlPolygon(new NpgsqlPoint(0, 0), new NpgsqlPoint(0, 0)); }
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} },
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{ typeof(NpgsqlPolygon[]).FullName, a => getParamterArrayValue(typeof(NpgsqlPolygon), a, new NpgsqlPolygon(new NpgsqlPoint(0, 0), new NpgsqlPoint(0, 0))) },
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{ typeof(NpgsqlPolygon?[]).FullName, a => getParamterArrayValue(typeof(NpgsqlPolygon?), a, null) },
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{ typeof((IPAddress Address, int Subnet)).FullName, a => {
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var inet = ((IPAddress Address, int Subnet))a;
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if (inet.Address == null) return (IPAddress.Any, inet.Subnet);
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return inet;
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} },
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{ typeof((IPAddress Address, int Subnet)[]).FullName, a => getParamterArrayValue(typeof((IPAddress Address, int Subnet)), a, (IPAddress.Any, 0)) },
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{ typeof((IPAddress Address, int Subnet)?[]).FullName, a => getParamterArrayValue(typeof((IPAddress Address, int Subnet)?), a, null) },
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};
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static object getParamterValue(Type type, object value, int level = 0)
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{
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if (type.FullName == "System.Byte[]") return value;
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if (type.FullName == "System.Char[]") return value;
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if (type.IsArray && level == 0)
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{
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var elementType = type.GetElementType();
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Type enumType = null;
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if (elementType.IsEnum) enumType = elementType;
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else if (elementType.IsNullableType() && elementType.GenericTypeArguments.First().IsEnum) enumType = elementType.GenericTypeArguments.First();
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if (enumType != null) return enumType.GetCustomAttributes(typeof(FlagsAttribute), false).Any() ?
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getParamterArrayValue(typeof(long), value, elementType.IsEnum ? null : enumType.CreateInstanceGetDefaultValue()) :
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getParamterArrayValue(typeof(int), value, elementType.IsEnum ? null : enumType.CreateInstanceGetDefaultValue());
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return dicGetParamterValue.TryGetValue(type.FullName, out var trydicarr) ? trydicarr(value) : value;
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}
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if (type.IsNullableType()) type = type.GenericTypeArguments.First();
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if (type.IsEnum) return (int)value;
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if (dicGetParamterValue.TryGetValue(type.FullName, out var trydic)) return trydic(value);
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return value;
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}
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public override DbParameter AppendParamter(List<DbParameter> _params, string parameterName, ColumnInfo col, Type type, object value)
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{
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if (string.IsNullOrEmpty(parameterName)) parameterName = $"p_{_params?.Count}";
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if (value != null) value = getParamterValue(type, value);
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var ret = new NpgsqlParameter { ParameterName = QuoteParamterName(parameterName), Value = value };
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//if (value.GetType().IsEnum || value.GetType().GenericTypeArguments.FirstOrDefault()?.IsEnum == true) {
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// ret.DataTypeName = "";
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//} else {
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var tp = _orm.CodeFirst.GetDbInfo(type)?.type;
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if (tp != null) ret.NpgsqlDbType = (NpgsqlDbType)tp.Value;
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if (col != null)
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{
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var dbtype = (NpgsqlDbType)_orm.DbFirst.GetDbType(new DatabaseModel.DbColumnInfo { DbTypeText = col.DbTypeText });
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if (dbtype != NpgsqlDbType.Unknown)
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{
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ret.NpgsqlDbType = dbtype;
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//if (col.DbSize != 0) ret.Size = col.DbSize;
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if (col.DbPrecision != 0) ret.Precision = col.DbPrecision;
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if (col.DbScale != 0) ret.Scale = col.DbScale;
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}
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}
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//}
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_params?.Add(ret);
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return ret;
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}
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public override DbParameter[] GetDbParamtersByObject(string sql, object obj) =>
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Utils.GetDbParamtersByObject<NpgsqlParameter>(sql, obj, "@", (name, type, value) =>
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{
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if (value != null) value = getParamterValue(type, value);
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var ret = new NpgsqlParameter { ParameterName = $"@{name}", Value = value };
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//if (value.GetType().IsEnum || value.GetType().GenericTypeArguments.FirstOrDefault()?.IsEnum == true) {
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// ret.DataTypeName = "";
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//} else {
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var tp = _orm.CodeFirst.GetDbInfo(type)?.type;
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if (tp != null) ret.NpgsqlDbType = (NpgsqlDbType)tp.Value;
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//}
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return ret;
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});
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public override string FormatSql(string sql, params object[] args) => sql?.FormatPostgreSQL(args);
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public override string QuoteSqlNameAdapter(params string[] name)
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{
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if (name.Length == 1)
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{
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var nametrim = name[0].Trim();
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if (nametrim.StartsWith("(") && nametrim.EndsWith(")"))
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return nametrim; //原生SQL
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if (nametrim.StartsWith("\"") && nametrim.EndsWith("\""))
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return nametrim;
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return $"\"{nametrim.Replace(".", "\".\"")}\"";
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}
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return $"\"{string.Join("\".\"", name)}\"";
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}
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public override string TrimQuoteSqlName(string name)
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{
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var nametrim = name.Trim();
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if (nametrim.StartsWith("(") && nametrim.EndsWith(")"))
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return nametrim; //原生SQL
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return $"{nametrim.Trim('"').Replace("\".\"", ".").Replace(".\"", ".")}";
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}
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public override string[] SplitTableName(string name) => GetSplitTableNames(name, '"', '"', 2);
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public override string QuoteParamterName(string name) => $"@{name}";
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public override string IsNull(string sql, object value) => $"coalesce({sql}, {value})";
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public override string StringConcat(string[] objs, Type[] types) => $"{string.Join(" || ", objs)}";
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public override string Mod(string left, string right, Type leftType, Type rightType) => $"{left} % {right}";
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public override string Div(string left, string right, Type leftType, Type rightType) => $"{left} / {right}";
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public override string Now => "current_timestamp";
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public override string NowUtc => "(current_timestamp at time zone 'UTC')";
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public override string QuoteWriteParamterAdapter(Type type, string paramterName) => paramterName;
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protected override string QuoteReadColumnAdapter(Type type, Type mapType, string columnName) => columnName;
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static ConcurrentDictionary<Type, bool> _dicIsAssignableFromPostgisGeometry = new ConcurrentDictionary<Type, bool>();
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public override string GetNoneParamaterSqlValue(List<DbParameter> specialParams, string specialParamFlag, ColumnInfo col, Type type, object value)
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{
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if (value == null) return "NULL";
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if (type.IsNumberType()) return string.Format(CultureInfo.InvariantCulture, "{0}", value);
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if (_dicIsAssignableFromPostgisGeometry.GetOrAdd(type, t2 =>
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{
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var t2type = t2.IsArray ? t2.GetElementType() : t2;
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return typeof(PostgisGeometry).IsAssignableFrom(t2type)
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#if nts
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||
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typeof(NetTopologySuite.Geometries.Geometry).IsAssignableFrom(t2type)
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#endif
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;
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}))
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{
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var pam = AppendParamter(specialParams, $"p_{specialParams?.Count}{specialParamFlag}", null, type, value);
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return pam.ParameterName;
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}
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value = getParamterValue(type, value);
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var type2 = value.GetType();
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if (type2 == typeof(byte[])) return $"'\\x{CommonUtils.BytesSqlRaw(value as byte[])}'";
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if (type2 == typeof(TimeSpan) || type2 == typeof(TimeSpan?))
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{
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var ts = (TimeSpan)value;
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return $"'{Math.Min(24, (int)Math.Floor(ts.TotalHours))}:{ts.Minutes}:{ts.Seconds}'";
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}
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else if (value is Array)
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{
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var valueArr = value as Array;
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var eleType = type2.GetElementType();
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var len = valueArr.GetLength(0);
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var sb = new StringBuilder().Append("ARRAY[");
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for (var a = 0; a < len; a++)
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{
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var item = valueArr.GetValue(a);
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if (a > 0) sb.Append(",");
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sb.Append(GetNoneParamaterSqlValue(specialParams, specialParamFlag, col, eleType, item));
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}
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sb.Append("]");
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var dbinfo = _orm.CodeFirst.GetDbInfo(type);
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if (dbinfo != null) sb.Append("::").Append(dbinfo.dbtype);
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return sb.ToString();
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}
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else if (type2 == typeof(BitArray))
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{
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return $"'{(value as BitArray).To1010()}'";
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}
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else if (type2 == typeof(NpgsqlLine) || type2 == typeof(NpgsqlLine?))
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{
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var line = value.ToString();
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return line == "{0,0,0}" ? "'{0,-1,-1}'" : $"'{line}'";
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}
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else if (type2 == typeof((IPAddress Address, int Subnet)) || type2 == typeof((IPAddress Address, int Subnet)?))
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{
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var cidr = ((IPAddress Address, int Subnet))value;
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return $"'{cidr.Address}/{cidr.Subnet}'";
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}
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else if (dicGetParamterValue.ContainsKey(type2.FullName))
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{
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value = string.Concat(value);
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}
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return FormatSql("{0}", value, 1);
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}
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}
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}
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