json-sql-enhanced/lib/dialects/postgresql/operators/comparison.js

Node.js library for mapping MongoDB-style query objects to SQL queries with enhanced operators and multi-dialect support

'use strict';

module.exports = function (dialect) {
  const buildComparisonCondition = function (field, operator, value) {
    return [field, operator, value].join(' ');
  };

  dialect.operators.comparison.add('$jsonContains', {
    defaultFetchingOperator: '$json',
    fn(field, value) {
      return buildComparisonCondition(field, '@>', value);
    },
  });

  dialect.operators.comparison.add('$jsonIn', {
    defaultFetchingOperator: '$json',
    fn(field, value) {
      return buildComparisonCondition(field, '<@', value);
    },
  });

  dialect.operators.comparison.add('$jsonHas', {
    defaultFetchingOperator: '$value',
    fn(field, value) {
      return buildComparisonCondition(field, '?', value);
    },
  });

  dialect.operators.comparison.add('$jsonHasAny', {
    defaultFetchingOperator: '$value',
    fn(field, value) {
      return buildComparisonCondition(field, '?|', value);
    },
  });

  dialect.operators.comparison.add('$jsonHasAll', {
    defaultFetchingOperator: '$value',
    fn(field, value) {
      return buildComparisonCondition(field, '?&', value);
    },
  });

  dialect.operators.comparison.add('$ilike', {
    inversedOperator: '$nilike',
    defaultFetchingOperator: '$value',
    fn(field, value) {
      return buildComparisonCondition(field, 'ilike', value);
    },
  });

  dialect.operators.comparison.add('$nilike', {
    inversedOperator: '$ilike',
    defaultFetchingOperator: '$value',
    fn(field, value) {
      return buildComparisonCondition(field, 'not ilike', value);
    },
  });

  dialect.operators.comparison.add('$arrayContains', {
    defaultFetchingOperator: '$array',
    fn(field, value) {
      return buildComparisonCondition(field, '@>', value);
    },
  });

  dialect.operators.comparison.add('$arrayIn', {
    defaultFetchingOperator: '$array',
    fn(field, value) {
      return buildComparisonCondition(field, '<@', value);
    },
  });

  dialect.operators.comparison.add('$arrayOverlap', {
    defaultFetchingOperator: '$array',
    fn(field, value) {
      return buildComparisonCondition(field, '&&', value);
    },
  });
};