74 lines
1.8 KiB
JavaScript
74 lines
1.8 KiB
JavaScript
import { _ } from 'meteor/underscore';
|
|
import { Template } from 'meteor/templating';
|
|
|
|
/**
|
|
* Global Blaze UI helpers to work with logical operations
|
|
*/
|
|
|
|
// Convert any value into a boolean value
|
|
Template.registerHelper('bool', value => {
|
|
return !!value;
|
|
});
|
|
|
|
// Check if two values are identical
|
|
Template.registerHelper('eq', (a, b) => {
|
|
return a === b;
|
|
});
|
|
|
|
// Check if two values are different
|
|
Template.registerHelper('ne', (a, b) => {
|
|
return a !== b;
|
|
});
|
|
|
|
// Check if the first value is greater than the second one
|
|
Template.registerHelper('gt', (a, b) => {
|
|
return a > b;
|
|
});
|
|
|
|
// Check if the first value is lesser than the second one
|
|
Template.registerHelper('lt', (a, b) => {
|
|
return a < b;
|
|
});
|
|
|
|
// Check if the first value is greater than or equals the second one
|
|
Template.registerHelper('gte', (a, b) => {
|
|
return a >= b;
|
|
});
|
|
|
|
// Check if the first value is lesser than or equals the second one
|
|
Template.registerHelper('lte', (a, b) => {
|
|
return a <= b;
|
|
});
|
|
|
|
// Get the boolean negation for the given value
|
|
Template.registerHelper('not', value => {
|
|
return !value;
|
|
});
|
|
|
|
// Check if all the given values are true
|
|
Template.registerHelper('and', (...values) => {
|
|
let result = true;
|
|
_.each(_.initial(values, 1), value => {
|
|
return !value && (result = false);
|
|
});
|
|
return result;
|
|
});
|
|
|
|
// Check if one of the given values is true
|
|
Template.registerHelper('or', (...values) => {
|
|
let result = false;
|
|
_.each(_.initial(values, 1), value => {
|
|
return value && (result = true);
|
|
});
|
|
return result;
|
|
});
|
|
|
|
// Return the second parameter if the first is true or the third if it's false
|
|
Template.registerHelper('valueIf', (condition, valueIfTrue, valueIfFalse) => {
|
|
if (condition) {
|
|
return valueIfTrue;
|
|
}
|
|
|
|
return valueIfFalse;
|
|
});
|