Adds case insensitive filter

src/augment/input-values.js

@@ -408,6 +408,7 @@ const buildPropertyFilters = ({
           'in',
           'not_in',
           'contains',
+          'contains_i',
           'not_contains',
           'starts_with',
           'not_starts_with',

src/translate.js

@@ -2447,9 +2447,12 @@ const translateFilterArgument = ({
     innerSchemaType = schema.getType(typeName);
   }
   // build path for parameter data for current filter field
-  const parameterPath = `${
-    parentParamPath ? parentParamPath : filterParam
-  }.${fieldName}`;
+  const parameterPath = buildParamaterPathExpression({
+    parentParamPath,
+    filterParam,
+    fieldName,
+    filterOperationType
+  });
   // short-circuit evaluation: predicate used to skip a field
   // if processing a list of objects that possibly contain different arguments
   const nullFieldPredicate = decideNullSkippingPredicate({
@@ -2504,6 +2507,7 @@ const parseFilterArgumentName = fieldName => {
     '_in',
     '_not_in',
     '_contains',
+    '_contains_i',
     '_not_contains',
     '_starts_with',
     '_not_starts_with',
@@ -2555,6 +2559,24 @@ const parseFilterArgumentName = fieldName => {
   };
 };
 
+const buildParamaterPathExpression = ({
+  parentParamPath,
+  filterParam,
+  fieldName,
+  filterOperationType
+}) => {
+  // build path for parameter data for current filter field
+  const parameterPath = `${
+    parentParamPath ? parentParamPath : filterParam
+  }.${fieldName}`;
+  // may need to call expression on path value depending on filter type
+  if (filterOperationType.slice(-2) === '_i') {
+    // case insensitive
+    return `toLower(${parameterPath})`;
+  }
+  return parameterPath;
+};
+
 const translateScalarFilter = ({
   isListFilterArgument,
   filterOperationField,
@@ -2638,6 +2660,8 @@ const buildOperatorExpression = ({
       return `NOT ${propertyPath} IN`;
     case 'contains':
       return `${propertyPath} CONTAINS`;
+    case 'contains_i':
+      return `toLower(${propertyPath}) CONTAINS`;
     case 'not_contains':
       return `NOT ${propertyPath} CONTAINS`;
     case 'starts_with':

test/helpers/testSchema.js

@@ -55,7 +55,7 @@ export const testSchema = `
     releases: [DateTime]
     customField: String @neo4j_ignore
   }
-  
+
   extend type Movie {
     currentUserId(strArg: String): String
       @cypher(
@@ -112,6 +112,7 @@ export const testSchema = `
     userId_in: [ID!]
     userId_not_in: [ID!]
     userId_contains: ID
+    userId_contains_i: ID
     userId_not_contains: ID
     userId_starts_with: ID
     userId_not_starts_with: ID
@@ -122,6 +123,7 @@ export const testSchema = `
     name_in: [String!]
     name_not_in: [String!]
     name_contains: String
+    name_contains_i: String
     name_not_contains: String
     name_starts_with: String
     name_not_starts_with: String
@@ -403,6 +405,7 @@ export const testSchema = `
     id_in: [ID!]
     id_not_in: [ID!]
     id_contains: ID
+    id_contains_i: ID
     id_not_contains: ID
     id_starts_with: ID
     id_not_starts_with: ID
@@ -413,6 +416,7 @@ export const testSchema = `
     type_in: [String!]
     type_not_in: [String!]
     type_contains: String
+    type_contains_i: String
     type_not_contains: String
     type_starts_with: String
     type_not_starts_with: String
@@ -423,6 +427,7 @@ export const testSchema = `
     make_in: [String!]
     make_not_in: [String!]
     make_contains: String
+    make_contains_i: String
     make_not_contains: String
     make_starts_with: String
     make_not_starts_with: String
@@ -529,7 +534,7 @@ export const testSchema = `
     query: QueryA
     subscription: SubscriptionC
   }
-  
+
   extend schema {
     mutation: Mutation
   }