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Implements lowBoundary and highBoundary #229

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Implements lowBoundary and highBoundary #229

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74f6bb5
Implements lowBoundary and highBoundary
SenecaDmitriiSemenov Apr 16, 2024
611df3c
Solved issue with determining date and dateTime
Diferti May 3, 2024
ad02990
Updated leap year logic, added tests for it
Diferti May 10, 2024
a81e645
Preliminary code for decimal
Diferti May 16, 2024
618dc18
Fixed 0 precesion for highBoundary
Diferti May 17, 2024
733c865
Merge branch 'FHIR:master' into boundary
Diferti Jun 20, 2024
3f482f0
Changed tests for review feedback
Diferti Jun 20, 2024
e684aa5
Merge branch 'boundary' of personal:Diferti/sql-on-fhir-v2 into boundary
Diferti Jun 20, 2024
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123 changes: 122 additions & 1 deletion sof-js/src/path.js
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Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
import { default as fhirpath } from 'fhirpath'
import fhir_r4_model from 'fhirpath/fhir-context/r4'
import { FP_DateTime, FP_Time } from 'fhirpath/src/types';
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Note: these are not exported, but could be


const identity = (ctx, v) => [v]

Expand All @@ -24,6 +26,123 @@ function getReferenceKey(nodes, opts) {
})
}

function checkDate (date, type) {
let [year, month, day] = date.split('-');
if (type == "low") {
if (!day) {
day = '01'
}
if (!month) {
month = '01'
}
} else {
if (!month) {
month = '12';
day = '31';
}
if (!day) {
if (month == "02") {
(year % 4 || !(year % 100) && year % 400) ? day = '28' : day = '29';
}
else if (["04", "06", "09", "11"].includes(month)) {
day = '30';
}
else {
day = '31';
}
}
}
return `${year}-${month}-${day}`;
}

function lowBoundary(nodes) {
return nodes.flatMap((node) => {
if (node == null) {
return null;
}
const { name: type } = node.getTypeInfo();
if (type === "decimal") {
let integer = (node.data.toString().split(".")[0] || "").length;
let precision = (node.data.toString().split(".")[1] || "").length;
return (integer > 8 || precision > 8) ? null : parseFloat(node.data.toFixed(8));
}
else if (type === "time") {
const picoSeconds = (node.data.split(".")[1] || "").padEnd(9, 0);
const time = new FP_Time(node.data.split(".")[0])._dateAtPrecision(2);
return time.toISOString().split("T")[1].slice(0, -4).concat(picoSeconds);
}
else if(type === "date") {
return checkDate(node.data, "low");
}
else if (type === 'dateTime') {
var timeHMS, timeZone, picoSeconds;
var [date, time] = node.data.split("T");
if (date) var dateObj = checkDate(date, "low");
if (time) {
var matchResult = time.match(/(\d{2}:\d{2}(?::\d{2})?)(?:\.(\d+))?(Z|[\+\-]\d{2}:\d{2})?/);
if (matchResult) {
[, timeHMS, picoSeconds, timeZone] = matchResult;
}
}
if (timeHMS) dateObj = date.concat("T", timeHMS);
const dateTime = new FP_DateTime(dateObj)._dateAtPrecision(5);
const newDate = dateTime.toISOString().split("T")[0];
if (picoSeconds == undefined) picoSeconds = "0";
const newTime = dateTime.toISOString().split("T")[1].slice(0, -4).concat(picoSeconds.padEnd(9, 0));
return newDate.concat("T", newTime, (timeZone == undefined) ? timeZone = "+14:00" : timeZone);
}
return [node];
})
}

function highBoundary(nodes) {
return nodes.flatMap((node) => {
if (node == null) {
return null;
}
const { name: type } = node.getTypeInfo();
if (type === "decimal") {
let integer = (node.data.toString().split(".")[0] || "").length;
let precision = (node.data.toString().split(".")[1] || "").length;
return (integer > 8 || precision > 8)
? null
: parseFloat(node.data.toString().split(".")[0] + '.' + (node.data.toString().split(".")[1] || "0").padEnd(8, 9));
}
else if (type === "time") {
const hasSeconds = node.data.split(":").length == 3;
const picoSeconds = (node.data.split(".")[1] || "").padEnd(9, 9);
const time = new FP_Time(node.data.split(".")[0])._dateAtPrecision(2);
if (!hasSeconds) time.setSeconds(59);
return time.toISOString().split("T")[1].slice(0, -4).concat(picoSeconds);
}
else if (type === "date") {
return checkDate(node.data, "high");
}
else if (type === "dateTime") {
var timeHMS, timeZone, picoSeconds;
var [date, time] = node.data.split("T");
if (date) var dateObj = checkDate(date, "high");
if (time) {
var matchResult = time.match(/(\d{2}:\d{2}(?::\d{2})?)(?:\.(\d+))?(Z|[\+\-]\d{2}:\d{2})?/);
if (matchResult) {
[, timeHMS, picoSeconds, timeZone] = matchResult;
}
var [hours, minutes, seconds] = timeHMS.split(":");
}
if (timeHMS) dateObj = date.concat("T", timeHMS);
const dateTime = new FP_DateTime(dateObj)._dateAtPrecision(5);
const newDate = dateTime.toISOString().split("T")[0];
if (hours == undefined) dateTime.setHours(23);
if (minutes == undefined) dateTime.setMinutes(59);
if (seconds == undefined) dateTime.setSeconds(59);
if (picoSeconds == undefined) picoSeconds = "9";
const newTime = dateTime.toISOString().split("T")[1].slice(0, -4).concat(picoSeconds.padEnd(9, 9));
return newDate.concat("T", newTime, (timeZone == undefined) ? timeZone = "-12:00" : timeZone);
}
return [node];
})
}

function ofType(ctx, nodes, a1, a2, a3) {
console.log('of type nodes', nodes, a1, a2, a3)
return 'ups'
Expand Down Expand Up @@ -52,6 +171,8 @@ let fhirpath_options = {
getResourceKey: { fn: getResourceKey, arity: { 0: [] } },
getReferenceKey: { fn: getReferenceKey, arity: { 0: [], 1: ['TypeSpecifier'] } },
identity: { fn: (nodes) => nodes, arity: { 0: [] } },
lowBoundary: { fn: lowBoundary, arity: { 0: [] }, nullable: true, internalStructures: true},
highBoundary: { fn: highBoundary, arity: { 0: [] }, nullable: true, internalStructures: true},
}
}

Expand All @@ -72,7 +193,7 @@ function process_constants(constants) {
}

export function fhirpath_evaluate(data, path, constants = []) {
return fhirpath.evaluate(data, rewrite_path(path), process_constants(constants), null, fhirpath_options);
return fhirpath.evaluate(data, rewrite_path(path), process_constants(constants), fhir_r4_model, fhirpath_options);
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Note: if we don't use model, TypeInfo for Resources will not work.

Question: should we use R4 in reference?

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I guess we can. Do we need it to tell date and dateTime apart?

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Yes, to determine date and dateTime, it is important to use the model

}

export function fhirpath_validate(path) {
Expand Down
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