Question

我尝试在我的postgre数据库中添加MultiPolygon几何，所以我使用了以下SQL语句：

'INSERT INTO potentiel_foncier_ccry (nature, geom, nbr_lgmt)  VALUES  ('+ mysql.escape(nature)+', ST_GeomFromText(MULTIPOLYGON((("'+mysql.escape(geom)+')))",2154),"'+ mysql.escape(logement) +'")'

但是失败了，我有这个错误：

error: syntax error at end of input

我的几何图形如下：

出什么问题了？预先谢谢

PS：我使用Nodejs进行编码

Answer 1

如果您通过OpenLayers应用程序执行此操作，则可以转换格式

var geom = [[[[101, 201],
              [102, 202],
              [103, 203],
              [101, 201]]]];

var wkt = new ol.format.WKT().writeGeometry(new ol.geom.MultiPolygon(geom));

console.log(wkt);  // 'MULTIPOLYGON(((101 201,102 202,103 203,101 201)))'

假设SQL的其余部分正确，您仍然需要ST_GeomFromText和2154：

var geom1 = [[[[101, 201],
               [102, 202],
               [103, 203],
               [101, 201]]]];

var wkt = new ol.format.WKT().writeGeometry(new ol.geom.MultiPolygon(geom1));

var geom2 = "ST_GeomFromText('" + wkt + "'),2154)"

 'INSERT INTO potentiel_foncier_ccry (nature, geom, nbr_lgmt) VALUES ('+ mysql.escape(nature)+', '+geom2+','+ mysql.escape(logement) +')'

Answer 2

（声誉极低，无法评论）看着postgis examples，MultiPolygon应该看起来像这样（只有圆括号）：

SELECT ST_GeomFromText（'MULTIPOLYGON（（（（-。71.1031880899493 42.3152774590236， -71.1031627617667 42.3152960829043，-71.102923838298 42.3149156848307， -71.1023097974109 42.3151969047397，-71.1019285062273 42.3147384934248， -71.102505233663 42.3144722937587，-71.10277487471 42.3141658254797， -71.103113945163 42.3142739188902，-71.10324876416 42.31402489987， -71.1033002961013 42.3140393340215，-71.1033488797549 42.3139495090772， -71.103396240451 42.3138632439557，-71.1041521907712 42.3141153348029， -71.1041411411543 42.3141545014533，-71.1041287795912 42.3142114839058， -71.1041188134329 42.3142693656241，-71.1041112482575 42.3143272556118， -71.1041072845732 42.3143851580048，-71.1041057218871 42.3144430686681， -71.1041065602059 42.3145009876017，-71.1041097995362 42.3145589148055， -71.1041166403905 42.3146168544148，-71.1041258822717 42.3146748022936， -71.1041375307579 42.3147318674446，-71.1041492906949 42.3147711126569， -71.1041598612795 42.314808571739，-71.1042515013869 42.3151287620809， -71.1041173835118 42.3150739481917，-71.1040809891419 42.3151344119048， -71.1040438678912 42.3151191367447，-71.1040194562988 42.3151832057859， -71.1038734225584 42.3151140942995，-71.1038446938243 42.3151006300338， -71.1038315271889 42.315094347535，-71.1037393329282 42.315054824985， -71.1035447555574 42.3152608696313，-71.1033436658644 42.3151648370544， -71.1032580383161 42.3152269126061，-71.103223066939 42.3152517403219， -71.1031880899493 42.3152774590236）），（（（-71.1043632495873 42.315113108546，-71.1043583974082 42.3151211109857， -71.1043443253471 42.3150676015829，-71.1043850704575 42.3150793250568，-71.1043632495873 42.315113108546）））'，4326）;

您确定mysql.escape（geom）创建了这种语法吗？

添加MultiPolygon几何体时的语法错误

2 个答案: