Method Overview
Name | Return Type | Summary | Object |
---|---|---|---|
Promise<WhereClause> | Parses the given where clause string and returns an instance of WhereClause when resolved. more details | sql |
Method Details
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parseWhereClause(clause, fieldsIndex){Promise<WhereClause>}
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Parses the given where clause string and returns an instance of WhereClause when resolved. The
WhereClause
object can be used repeatedly against different features, to test if they individually meet the condition. The parser does not parse a whole SQL statement (ie.SELECT X… WHERE…
). It only parses the expression after thewhere
token.Parametersclause StringThe SQL where clause expression.
fieldsIndex FieldsIndexThe fields index of the layer. The fields index is used to match the fields found in the where clause against the service, to fix casing for example.
ReturnsType Description Promise<WhereClause> Parses a string where clause and returns a promise that resolves to an object with the WhereClause specification. Examplesql.parseWhereClause("POPULATION > 100000", layer.fieldsIndex) .then(function(clause){ let testResult = clause.testFeature(new Graphic({ attributes: { POPULATION: 300000 } }); console.log(testResult); // prints true });