97 lines
2.2 KiB
JavaScript
97 lines
2.2 KiB
JavaScript
var pg = require('./pg');
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function json() {}
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json.prototype = new pg('json');
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var p = json.prototype;
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p._contentType = "application/json; charset=utf-8";
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var typeNames = {
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16: 'boolean', // bool
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17: 'string', // bytea
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20: 'number', // int8
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21: 'number', // int2
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23: 'number', // int4
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25: 'string', // text
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26: 'number', // oid
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114: 'object', // JSON
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700: 'number', // float4
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701: 'number', // float8
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1000: 'boolean[]', // _bool
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1015: 'string[]', // _varchar
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1042: 'string', // bpchar
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1043: 'string', // varchar
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1005: 'number[]', // _int2
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1007: 'number[]', // _int4
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1014: 'string[]', // _bpchar
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1016: 'number[]', // _int8
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1021: 'number[]', // _float4
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1022: 'number[]', // _float8
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1008: 'string[]', // _regproc
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1009: 'string[]', // _text
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1114: 'date', // timestamp without timezone
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1182: 'date', // date
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1184: 'date', // timestamp
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1186: 'string', // interval
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1231: 'number[]', // _numeric
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1700: 'number', // numeric
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};
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p.formatResultFields = function(flds) {
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var nfields = {};
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for (var i=0; i<flds.length; ++i) {
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var f = flds[i];
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var cname = this.client.typeName(f.dataTypeID);
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var tname;
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if ( ! cname ) {
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tname = 'unknown(' + f.dataTypeID + ')';
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} else {
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if ( cname.match('bool') ) {
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tname = 'boolean';
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}
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else if ( cname.match(/int|float|numeric/) ) {
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tname = 'number';
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}
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else if ( cname.match(/text|char|unknown/) ) {
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tname = 'string';
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}
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else if ( cname.match(/date|time/) ) {
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tname = 'date';
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}
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else {
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tname = cname;
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}
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if ( tname && cname.match(/^_/) ) {
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tname += '[]';
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}
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}
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//console.log('cname:'+cname+' tname:'+tname);
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nfields[f.name] = { type: tname };
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}
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return nfields;
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}
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p.transform = function(result, options, callback) {
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var j = {
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time: options.total_time,
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fields: this.formatResultFields(result.fields),
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total_rows: result.rowCount,
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rows: result.rows
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}
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if ( result.notices ) {
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for (var i=0; i<result.notices.length; ++i) {
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var m = result.notices[i];
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var l = m.severity.toLowerCase() + 's';
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if ( ! j[l] ) j[l] = [];
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j[l].push(m.message);
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}
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}
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callback(null, j);
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};
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module.exports = json;
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