parse boolean in convertQueryParam instead of parsing in database

packages/core/database/lib/fields.js

@@ -3,7 +3,6 @@
 const _ = require('lodash/fp');
 const dateFns = require('date-fns');
 const { InvalidTimeError, InvalidDateError, InvalidDateTimeError } = require('./errors');
-const { parseBoolean } = require('./utils/boolean');
 
 class Field {
   constructor(config) {
@@ -42,7 +41,17 @@ class JSONField extends Field {
 
 class BooleanField extends Field {
   toDB(value) {
-    return parseBoolean(value);
+    if (typeof value === 'boolean') return value;
+
+    if (['true', 't', '1', 1].includes(value)) {
+      return true;
+    }
+
+    if (['false', 'f', '0', 0].includes(value)) {
+      return false;
+    }
+
+    return Boolean(value);
   }
 
   fromDB(value) {

packages/core/database/lib/query/helpers/where.js

@@ -3,7 +3,6 @@
 const _ = require('lodash/fp');
 
 const types = require('../../types');
-const { parseBoolean } = require('../../utils/boolean');
 const { createField } = require('../../fields');
 const { createJoin } = require('./join');
 const { toColumnName } = require('./transform');
@@ -248,7 +247,7 @@ const applyOperator = (qb, column, operator, value) => {
       break;
     }
     case '$null': {
-      if (parseBoolean(value)) {
+      if (value) {
         qb.whereNull(column);
       } else {
         qb.whereNotNull(column);
@@ -256,7 +255,7 @@ const applyOperator = (qb, column, operator, value) => {
       break;
     }
     case '$notNull': {
-      if (parseBoolean(value)) {
+      if (value) {
         qb.whereNotNull(column);
       } else {
         qb.whereNull(column);

packages/core/database/lib/utils/boolean.js

@@ -1,19 +0,0 @@
-'use strict';
-
-const parseBoolean = value => {
-  if (typeof value === 'boolean') return value;
-
-  if (['true', 't', '1', 1].includes(value)) {
-    return true;
-  }
-
-  if (['false', 'f', '0', 0].includes(value)) {
-    return false;
-  }
-
-  return Boolean(value);
-};
-
-module.exports = {
-  parseBoolean,
-};

packages/core/utils/lib/convert-query-params.js

@@ -4,10 +4,11 @@
  * Converts the standard Strapi REST query params to a more usable format for querying
  * You can read more here: https://docs.strapi.io/developer-docs/latest/developer-resources/database-apis-reference/rest-api.html#filters
  */
-const { has, isEmpty, isObject, cloneDeep } = require('lodash/fp');
+const { has, isEmpty, isObject, cloneDeep, get } = require('lodash/fp');
 const _ = require('lodash');
 const parseType = require('./parse-type');
 const contentTypesUtils = require('./content-types');
+const { ApplicationError } = require('./errors');
 
 const { PUBLISHED_AT_ATTRIBUTE } = contentTypesUtils.constants;
 
@@ -228,10 +229,10 @@ const convertFiltersQueryParams = (filters, schema) => {
   // Don't mutate the original object
   const filtersCopy = cloneDeep(filters);
 
-  return sanitizeFilters(filtersCopy, schema);
+  return convertAndSanitizeFilters(filtersCopy, schema);
 };
 
-const sanitizeFilters = (filters, schema) => {
+const convertAndSanitizeFilters = (filters, schema) => {
   if (!isObject(filters)) {
     return filters;
   }
@@ -240,7 +241,7 @@ const sanitizeFilters = (filters, schema) => {
     return (
       filters
         // Sanitize each filter
-        .map(filter => sanitizeFilters(filter, schema))
+        .map(filter => convertAndSanitizeFilters(filter, schema))
         // Filter out empty filters
         .filter(filter => !isObject(filter) || !isEmpty(filter))
     );
@@ -250,39 +251,52 @@ const sanitizeFilters = (filters, schema) => {
 
   // Here, `key` can either be an operator or an attribute name
   for (const [key, value] of Object.entries(filters)) {
-    const attribute = schema.attributes[key];
+    const attribute = get('key', schema.attributes);
 
     // Handle attributes
     if (attribute) {
-      // Always remove password attributes from filters object
-      if (attribute.type === 'password') {
-        removeOperator(key);
-      }
-
       // Relations
       if (attribute.type === 'relation') {
-        filters[key] = sanitizeFilters(value, strapi.getModel(attribute.target));
+        filters[key] = convertAndSanitizeFilters(value, strapi.getModel(attribute.target));
       }
 
       // Components
       else if (attribute.type === 'component') {
-        filters[key] = sanitizeFilters(value, strapi.getModel(attribute.component));
+        filters[key] = convertAndSanitizeFilters(value, strapi.getModel(attribute.component));
       }
 
       // Media
       else if (attribute.type === 'media') {
-        filters[key] = sanitizeFilters(value, strapi.getModel('plugin::upload.file'));
+        filters[key] = convertAndSanitizeFilters(value, strapi.getModel('plugin::upload.file'));
       }
 
       // Dynamic Zones
       else if (attribute.type === 'dynamiczone') {
         removeOperator(key);
       }
+
+      // Scalar attributes
+      else {
+        // Always remove password attributes from filters object
+        if (attribute.type === 'password') {
+          removeOperator(key);
+        } else {
+          filters[key] = convertAndSanitizeFilters(value);
+        }
+      }
     }
 
     // Handle operators
-    else if (isObject(value)) {
+    else {
-      filters[key] = sanitizeFilters(value, schema);
+      if (isObject(value)) {
+        filters[key] = convertAndSanitizeFilters(value, schema);
+      } else if (['$null', '$notNull'].includes(key)) {
+        try {
+          filters[key] = parseType({ type: 'boolean', value: filters[key], forceCast: true });
+        } catch (e) {
+          throw new ApplicationError(e.message);
+        }
+      }
     }
 
     // Remove empty objects & arrays