using ExportMap.cs;
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using ExportMap.Models;
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using Npgsql;
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using System;
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using System.Collections.Generic;
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using System.Data.Common;
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using System.Linq;
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using System.Reflection;
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using System.Web;
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namespace ExportMap.db
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{
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public class PubDBHelper
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{
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private static List<string> imgList = new List<string>() { "tif", "tiff", "img", "mpt" };
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private static string insertPublishSql = "insert into lf.sys_publish(name, url, path, type, status, dirid, depid, min, max, json, create_user, geom, bak) values (@name, @url, @path, @type, @status, @dirid, @depid, @min, @max, @json, @create_user, {0}, @bak) returning id";
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private static string insertMetaPubSql = "insert into lf.sys_meta_pub (metaid, pubid, create_user) select {0}, {1}, {2} from (select 1) temp where not exists (select 1 from lf.sys_meta_pub where metaid = {0} and pubid = {1})";
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// 模型-@cnName，model-@enName，自动发布模型-@name，http:// - @url，Tileset-@serve，1-@user，7-@pubid
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private static string insertLayerSql = "insert into lf.sys_layer (pid, cn_name, en_name, url, type, level, order_num, is_show, create_user, data_type, serve_type, pubid, elev) values ((select coalesce(id, 0) from lf.sys_layer where cn_name = @name limit 1), @cnName, @enName, @url, 2, (select coalesce(level, 0) + 1 from lf.sys_layer where cn_name = @name limit 1), (select coalesce(max(order_num), 0) + 1 from lf.sys_layer where pid = (select id from lf.sys_layer where cn_name = @name limit 1)), 0, @user, @name, @serve, @pubid, @elev);";
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private static string updateMetaSql = "update lf.sys_meta set path = @path where id = @id";
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/// <summary>
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/// 是/否发布过
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/// </summary>
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public static bool IsPublish(int metaid)
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{
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string sql = "select count(*) from lf.sys_meta_pub a inner join lf.sys_publish b on a.pubid = b.id where a.metaid = " + metaid;
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object obj = Tool.DBHelper.GetScalar(sql);
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int count = obj == null ? 0 : Convert.ToInt32(obj);
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return count > 0;
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}
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/// <summary>
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/// 是/否发布过
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/// </summary>
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public static bool IsPublish(string dirid)
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{
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string sql = "select count(*) from lf.sys_meta_pub a inner join lf.sys_publish b on a.pubid = b.id where b.type = 'DOM' and b.dirid = @dirid";
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DbParameter dp = new NpgsqlParameter("@dirid", dirid);
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object obj = Tool.DBHelper.GetScalar(sql, dp);
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int count = obj == null ? 0 : Convert.ToInt32(obj);
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return count > 0;
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}
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/// <summary>
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/// 插入元数据-数据发布表记录
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/// </summary>
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public static int InsertMetaPub(int metaid, int pubid, int userId)
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{
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string sql = string.Format(insertMetaPubSql, metaid, pubid, userId);
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return Tool.DBHelper.ExecuteNonQuery(sql);
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}
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/// <summary>
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/// 插入数据发布表记录
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/// </summary>
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public static int InsertPublish(SysPublish sys)
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{
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List<DbParameter> list = Tool.GetParams<SysPublish>(insertPublishSql, sys);
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string sql = string.Format(insertPublishSql, sys.geom == null ? "null" : sys.geom);
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object obj = Tool.DBHelper.GetScalar(sql, list.ToArray());
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return obj == null ? 0 : Convert.ToInt32(obj);
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}
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/// <summary>
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/// 插入图层表记录
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/// </summary>
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public static int InsertLayer(SysPublish sys, SysMeta meta, double elev = 0)
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{
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bool isImg = imgList.Contains(meta.type);
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string cnName = meta.name.Split(new char[] { '.' })[0];
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string name = isImg ? "影像" : "自动发布模型";
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string serve = isImg ? (meta.type.Equals("mpt") ? "Mpt" : "TMS") : "Tileset";
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List<DbParameter> list = new List<DbParameter>();
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list.Add(new NpgsqlParameter("@cnName", cnName));
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list.Add(new NpgsqlParameter("@enName", meta.name));
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list.Add(new NpgsqlParameter("@name", name));
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list.Add(new NpgsqlParameter("@url", sys.url));
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list.Add(new NpgsqlParameter("@serve", serve));
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list.Add(new NpgsqlParameter("@pubid", sys.id));
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list.Add(new NpgsqlParameter("@user", sys.create_user));
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list.Add(new NpgsqlParameter("@elev", elev));
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int rows = Tool.DBHelper.ExecuteNonQuery(insertLayerSql, list.ToArray());
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return rows;
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}
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/// <summary>
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/// 更新元数据文件路径
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/// </summary>
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public static int UpdateMetaPath(SysMeta meta)
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{
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List<DbParameter> list = new List<DbParameter>();
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list.Add(new NpgsqlParameter("@id", meta.id));
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list.Add(new NpgsqlParameter("@path", meta.path));
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int rows = Tool.DBHelper.ExecuteNonQuery(updateMetaSql, list.ToArray());
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return rows;
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}
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/// <summary>
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/// 获取参数列表
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/// </summary>
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public static List<DbParameter> GetParams<T>(string sql, T t)
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{
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List<DbParameter> list = new List<DbParameter>();
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Type tType = typeof(T);
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BindingFlags flags = BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.Instance;
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int start = sql.IndexOf("@");
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while (start != -1)
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{
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int end = sql.IndexOf(",", start);
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if (end == -1) end = sql.IndexOf(")", start);
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if (end == -1) end = sql.IndexOf(" ", start);
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if (end == -1) end = sql.Length;
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string name = sql.Substring(start + 1, end - start - 1);
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PropertyInfo pi = tType.GetProperty(name, flags);
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if (pi != null)
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{
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object value = pi.GetValue(t, null);
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DbParameter dp = new NpgsqlParameter("@" + name, value);
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list.Add(dp);
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}
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start = sql.IndexOf("@", end);
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}
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return list;
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}
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}
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}
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