db._svc.QueryOpService

Funcationality around queries, query clauses and conditions

query.init()

Initialize service from QueryOp objects in the DB

Returns

Promise – resolving when init complete

getQueryOpList(forType)

Look up relevant QueryOps for a given type

Arguments

  • forType (string) – field type

Returns

Array.<QueryOp> –

satisfiesCondition(modelObj, condition)

Evaluate a query condition against a model object

Arguments

  • modelObj (BusinessObject) – object to evaluate against

  • condition (object) – the query condition

Returns

true iff modelObj satisifes query condition

applyNoonianContext(queryObj, context)
Search for any $noonian_context objects within the queryObj, replace with values from actual context.

Keys mapping to an object such as {$noonian_context:’dotted.spec.string’} will be mapped to context.dotted.spec.string Mutates queryObj!

Arguments

  • queryObj (object) –

  • context (object) –

Returns

null –

queryToMongo(queryObj, boMetaData)

Process any custom query operators to create a query for mongodb Mutates queryObj!

Arguments

  • queryObj (object) –

  • boMetaData (object) –

Returns

null –

stringifyQuery(queryObj, boMetaData, fieldLabels, noonianContext)

Convert query object to human-readable string

Arguments

  • queryObj (object) –

  • boMetaData (object) – bo_meta_data of object to which queryObj applies

  • fieldLabels (object) – map field name to label

  • noonianContext (object) – context to apply to labels

Returns

string –