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327 lines (308 loc) · 14.2 KB
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namespace APIJSON.NET
{
using APIJSON.NET.Services;
using Microsoft.Extensions.Options;
using Newtonsoft.Json.Linq;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Linq;
using AspectCore.Extensions.Reflection;
using System.Text.RegularExpressions;
public class SelectTable
{
private readonly IIdentityService _identitySvc;
private readonly ITableMapper _tableMapper;
private readonly DbContext db;
public SelectTable(IIdentityService identityService, ITableMapper tableMapper, DbContext _db)
{
_identitySvc = identityService;
_tableMapper = tableMapper;
db = _db;
}
/// <summary>
/// 判断表名是否正确
/// </summary>
/// <param name="table"></param>
/// <returns></returns>
public bool IsTable(string table)
{
return db.Db.DbMaintenance.GetTableInfoList().Any(it => it.Name.Equals(table, StringComparison.CurrentCultureIgnoreCase));
}
/// <summary>
/// 判断表的列名是否正确
/// </summary>
/// <param name="table"></param>
/// <param name="col"></param>
/// <returns></returns>
public bool IsCol(string table, string col)
{
return db.Db.DbMaintenance.GetColumnInfosByTableName(table).Any(it => it.DbColumnName.Equals(col, StringComparison.CurrentCultureIgnoreCase));
}
/// <summary>
/// 动态调用方法
/// </summary>
/// <param name="funcname"></param>
/// <param name="param"></param>
/// <param name="types"></param>
/// <returns></returns>
public object ExecFunc(string funcname,object[] param, Type[] types)
{
var method = typeof(FuncList).GetMethod(funcname);
var reflector = method.GetReflector();
var result = reflector.Invoke(new FuncList(), param);
return result;
}
public (dynamic,int) GetTableData(string subtable, int page, int count, string json, JObject dd)
{
var role = _identitySvc.GetSelectRole(subtable);
if (!role.Item1)//没有权限返回异常
{
throw new Exception(role.Item2);
}
string selectrole = role.Item2;
subtable = _tableMapper.GetTableName(subtable);
JObject values = JObject.Parse(json);
page = values["page"] == null ? page : int.Parse(values["page"].ToString());
count = values["count"] == null ? count : int.Parse(values["count"].ToString());
values.Remove("page");
values.Remove("count");
var tb = sugarQueryable(subtable, selectrole, values, dd);
if (count > 0)
{
int total = 0;
return (tb.ToPageList(page, count,ref total),total);
}
else
{
return (tb.ToList(),tb.Count());
}
}
public dynamic GetFirstData(string subtable, string json, JObject dd)
{
var role = _identitySvc.GetSelectRole(subtable);
if (!role.Item1)//没有权限返回异常
{
throw new Exception(role.Item2);
}
string selectrole = role.Item2;
subtable = _tableMapper.GetTableName(subtable);
JObject values = JObject.Parse(json);
values.Remove("page");
values.Remove("count");
var tb = sugarQueryable(subtable, selectrole, values, dd).First();
var dic = (IDictionary<string, object>)tb;
foreach (var item in values.Properties().Where(it => it.Name.EndsWith("()")))
{
if (item.Value.IsValue())
{
string func = item.Value.ToString().Substring(0, item.Value.ToString().IndexOf("("));
string param = item.Value.ToString().Substring(item.Value.ToString().IndexOf("(") + 1).TrimEnd(')') ;
var types = new List<Type>();
var paramss = new List<object>();
foreach (var va in param.Split(","))
{
types.Add(typeof(object));
paramss.Add(tb.Where(it => it.Key.Equals(va)).Select(i => i.Value));
}
dic[item.Name] =ExecFunc(func, paramss.ToArray(), types.ToArray());
}
}
return tb;
}
private ISugarQueryable<ExpandoObject> sugarQueryable(string subtable, string selectrole, JObject values, JObject dd)
{
if (!IsTable(subtable))
{
throw new Exception($"表名{subtable}不正确！");
}
var tb = db.Db.Queryable(subtable, "tb");
if (values["@column"].IsValue())
{
var str = new System.Text.StringBuilder(100);
foreach (var item in values["@column"].ToString().Split(","))
{
string[] ziduan = item.Split(":");
if (ziduan.Length > 1)
{
if (IsCol(subtable,ziduan[0]) &&_identitySvc.ColIsRole(ziduan[0], selectrole.Split(",")))
{
str.Append(ziduan[0] + " as " + ziduan[1] + ",");
}
}
else
{
if (IsCol(subtable, item) && _identitySvc.ColIsRole(item, selectrole.Split(",")))
{
str.Append(item + ",");
}
}
}
if (string.IsNullOrEmpty(str.ToString()))
{
throw new Exception($"表名{subtable}没有可查询的字段！");
}
tb.Select(str.ToString().TrimEnd(','));
}
else
{
tb.Select(selectrole);
}
List<IConditionalModel> conModels = new List<IConditionalModel>();
if (values["identity"].IsValue())
{
conModels.Add(new ConditionalModel() { FieldName = values["identity"].ToString(), ConditionalType = ConditionalType.Equal, FieldValue = _identitySvc.GetUserIdentity() });
}
foreach (var va in values)
{
string vakey = va.Key.Trim();
if (vakey.EndsWith("$"))//模糊查询
{
if (IsCol(subtable,vakey.TrimEnd('$')))
{
conModels.Add(new ConditionalModel() { FieldName = vakey.TrimEnd('$'), ConditionalType = ConditionalType.Like, FieldValue = va.Value.ToString() });
}
}
else if (vakey.EndsWith("{}"))//逻辑运算
{
string field = vakey.TrimEnd("{}".ToCharArray());
if (va.Value.HasValues)
{
conModels.Add(new ConditionalModel() { FieldName = field, ConditionalType = field.EndsWith("!") ? ConditionalType.NotIn : ConditionalType.In, FieldValue = va.Value.ToString() });
}
else
{
var ddt = new List<KeyValuePair<WhereType, ConditionalModel>>();
foreach (var and in va.Value.ToString().Split(','))
{
var model = new ConditionalModel();
model.FieldName = field;
if (and.StartsWith(">="))
{
model.ConditionalType = ConditionalType.GreaterThanOrEqual;
model.FieldValue = and.TrimStart(">=".ToCharArray());
}
else if (and.StartsWith("<="))
{
model.ConditionalType = ConditionalType.LessThanOrEqual;
model.FieldValue = and.TrimStart("<=".ToCharArray());
}
else if (and.StartsWith(">"))
{
model.ConditionalType = ConditionalType.GreaterThan;
model.FieldValue = and.TrimStart('>');
}
else if (and.StartsWith("<"))
{
model.ConditionalType = ConditionalType.LessThan;
model.FieldValue = and.TrimStart('<');
}
ddt.Add(new KeyValuePair<WhereType, ConditionalModel>((field.EndsWith("&") ? WhereType.And : WhereType.Or), model));
}
conModels.Add(new ConditionalCollections() { ConditionalList = ddt });
}
}
else if (vakey.EndsWith("@") && dd != null) // 关联上一个table
{
string[] str = va.Value.ToString().Split("/");
string value = string.Empty;
if (str.Length == 3)
{
value = dd[str[1]][str[2]].ToString();
}
else if (str.Length == 2)
{
value = dd[str[0]][str[1]].ToString();
}
conModels.Add(new ConditionalModel() { FieldName = vakey.TrimEnd('@'), ConditionalType = ConditionalType.Equal, FieldValue = value });
}
else if (IsCol(subtable,vakey)) //其他where条件
{
conModels.Add(new ConditionalModel() { FieldName = vakey, ConditionalType = ConditionalType.Equal, FieldValue = va.Value.ToString() });
}
}
tb.Where(conModels);
//排序
if (values["@order"].IsValue())
{
foreach (var item in values["@order"].ToString().Split(","))
{
if (IsCol(subtable,item.Replace("-", "")))
{
if (item.EndsWith("-"))
{
tb.OrderBy($"{item.Replace("-", " desc")}");
}
else
{
tb.OrderBy($"{item.ToString()}");
}
}
}
}
if (values["@group"].IsValue())
{
var str = new System.Text.StringBuilder(100);
foreach (var and in values["@group"].ToString().Split(','))
{
if (IsCol(subtable, and))
{
str.Append(and + ",");
}
}
tb.GroupBy(str.ToString().TrimEnd(','));
}
if (values["@having"].IsValue())
{
List<IConditionalModel> hw = new List<IConditionalModel>();
JArray jArray = JArray.Parse(values["@having"].ToString());
foreach (var item in jArray)
{
string and = item.ToString();
var model = new ConditionalModel();
if (and.Contains(">="))
{
model.FieldName = and.Split(new string[] { ">=" }, StringSplitOptions.RemoveEmptyEntries)[0];
model.ConditionalType = ConditionalType.GreaterThanOrEqual;
model.FieldValue = and.Split(new string[] { ">=" }, StringSplitOptions.RemoveEmptyEntries)[1];
}
else if (and.Contains("<="))
{
model.FieldName = and.Split(new string[] { "<=" }, StringSplitOptions.RemoveEmptyEntries)[0];
model.ConditionalType = ConditionalType.LessThanOrEqual;
model.FieldValue = and.Split(new string[] { "<=" }, StringSplitOptions.RemoveEmptyEntries)[1];
}
else if (and.Contains(">"))
{
model.FieldName = and.Split(new string[] { ">" }, StringSplitOptions.RemoveEmptyEntries)[0];
model.ConditionalType = ConditionalType.GreaterThan;
model.FieldValue = and.Split(new string[] { ">" }, StringSplitOptions.RemoveEmptyEntries)[1];
}
else if (and.Contains("<"))
{
model.FieldName = and.Split(new string[] { "<" }, StringSplitOptions.RemoveEmptyEntries)[0];
model.ConditionalType = ConditionalType.LessThan;
model.FieldValue = and.Split(new string[] { "<" }, StringSplitOptions.RemoveEmptyEntries)[1];
}
else if (and.Contains("!="))
{
model.FieldName = and.Split(new string[] { "!=" }, StringSplitOptions.RemoveEmptyEntries)[0];
model.ConditionalType = ConditionalType.NoEqual;
model.FieldValue = and.Split(new string[] { "!=" }, StringSplitOptions.RemoveEmptyEntries)[1];
}
else if (and.Contains("="))
{
model.FieldName = and.Split(new string[] { "=" }, StringSplitOptions.RemoveEmptyEntries)[0];
model.ConditionalType = ConditionalType.Equal;
model.FieldValue = and.Split(new string[] { "=" }, StringSplitOptions.RemoveEmptyEntries)[1];
}
hw.Add(model);
}
var d=db.Db.Context.Utilities.ConditionalModelToSql(hw);
tb.Having(d.Key,d.Value);
}
return tb;
}
}
}