forEachResultTable
The forEachResultTable
method takes a function that it will then call for each result Table
in the Queries
object.
forEachResultTable(tableCallback: TableCallback): void
Type | Description | |
---|---|---|
tableCallback | TableCallback | The function that should be called for every query's result |
returns | void | This has no return value. |
This method is useful for iterating over all the result Tables
of the queries in a functional style. The tableCallback
parameter is a TableCallback
function that will be called with the Id
of each result Table
, and with a function that can then be used to iterate over each Row
of the result Table
, should you wish.
This example iterates over each query's result Table
in a Queries
object.
const store = createStore().setTable('pets', {
fido: {species: 'dog', color: 'brown'},
felix: {species: 'cat', color: 'black'},
cujo: {species: 'dog', color: 'black'},
});
const queries = createQueries(store)
.setQueryDefinition('dogColors', 'pets', ({select, where}) => {
select('color');
where('species', 'dog');
})
.setQueryDefinition('catColors', 'pets', ({select, where}) => {
select('color');
where('species', 'cat');
});
queries.forEachResultTable((queryId, forEachRow) => {
console.log(queryId);
forEachRow((rowId) => console.log(`- ${rowId}`));
});
// -> 'dogColors'
// -> '- fido'
// -> '- cujo'
// -> 'catColors'
// -> '- felix'
v2.0.0