fix php codegen (#93)

* fix php codegen

* Update micronaut generator

* bump version prior to merge

Co-authored-by: Eric Durand-Tremblay <[email protected]>

Author: etremblay

gradle/openapi-sdk/build.gradle.kts

@@ -1,6 +1,6 @@
 import org.apache.tools.ant.taskdefs.Patch
 
-version = "0.0.15-SNAPSHOT"
+version = "0.0.16-SNAPSHOT"
 
 val openApiPatchesSourceDirectory = layout.projectDirectory.dir("src/patches")
 val openApiTemplatesDirectory = layout.buildDirectory.dir("tmp/openapi-templates")
@@ -16,7 +16,7 @@ dependencies {
 
     compileOnly("org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.21")
     implementation("org.openapitools:openapi-generator-gradle-plugin:$openApiVersion")
-    implementation("com.equisoft.openapi.generator.micronaut:micronaut-project-openapi-generator:0.2.1")
+    implementation("com.equisoft.openapi.generator.micronaut:micronaut-project-openapi-generator:0.3.0")
 
     openApiGenerator("org.openapitools:openapi-generator:$openApiVersion")
 }

gradle/openapi-sdk/src/main/java/org/openapitools/codegen/languages/AbstractPhpCodegen.java

@@ -329,7 +329,9 @@ public String getTypeDeclaration(Schema p) {
         } else if (p instanceof ComposedSchema) {
             // Support nullable defined using oneOf construct
             ComposedSchema composedSchema = (ComposedSchema)p;
-            if (Boolean.TRUE.equals(p.getNullable()) || ModelUtils.isNullableComposedSchema(composedSchema)) {
+            Boolean isNullable = Boolean.TRUE.equals(p.getNullable())
+                || ModelUtils.isNullableComposedSchema(composedSchema);
+            if (composedSchema.getOneOf() != null && isNullable) {
                 Schema inner = composedSchema
                     .getOneOf()
                     .stream()