fix: logic

.idea/watcherTasks.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectTasksOptions">
+    <TaskOptions isEnabled="true">
+      <option name="arguments" value="run --disable=typecheck $FileDir$" />
+      <option name="checkSyntaxErrors" value="true" />
+      <option name="description" />
+      <option name="exitCodeBehavior" value="ERROR" />
+      <option name="fileExtension" value="go" />
+      <option name="immediateSync" value="false" />
+      <option name="name" value="golangci-lint" />
+      <option name="output" value="" />
+      <option name="outputFilters">
+        <array />
+      </option>
+      <option name="outputFromStdout" value="false" />
+      <option name="program" value="golangci-lint" />
+      <option name="runOnExternalChanges" value="false" />
+      <option name="scopeName" value="Project Files" />
+      <option name="trackOnlyRoot" value="true" />
+      <option name="workingDir" value="$ProjectFileDir$" />
+      <envs>
+        <env name="GOROOT" value="$GOROOT$" />
+        <env name="GOPATH" value="$GOPATH$" />
+        <env name="PATH" value="$GoBinDirs$" />
+      </envs>
+    </TaskOptions>
+  </component>
+</project>

relationsCheck/checkBelongsTo.go

@@ -5,13 +5,13 @@ import (
 )
 
 func IsBelongsTo(field common.Field, model common.Model, relatedModel common.Model) bool {
-	foreignKey := field.Tags.GetParamOr("foreignKey", "Id")
-	references := field.Tags.GetParamOr("references", relatedModel.Name+"Id")
+	references := field.Tags.GetParamOr("references", "Id")
+	foreignKey := field.Tags.GetParamOr("foreignKey", field.Name+"Id")
 
-	if !model.HasField(references) {
+	if !model.HasField(foreignKey) {
 		return false
 	}
-	if !relatedModel.HasField(foreignKey) {
+	if !relatedModel.HasField(references) {
 		return false
 	}
 

relationsCheck/checkHasOne.go

@@ -1 +1,18 @@
 package relationsCheck
+
+import "gormlint/common"
+
+func IsHasOne(field common.Field, model common.Model, relatedModel common.Model) bool {
+	foreignKey := field.Tags.GetParamOr("foreignKey", model.Name+"Id")
+	references := field.Tags.GetParamOr("references", "Id")
+
+	if !relatedModel.HasField(foreignKey) {
+		return false
+	}
+
+	if !model.HasField(references) {
+		return false
+	}
+
+	return true
+}

relationsCheck/relationsCheck.go

@@ -117,10 +117,14 @@ func CheckOneToMany(pass *analysis.Pass, models map[string]common.Model) {
 				fmt.Printf("Found 1:M relation in model `%s` with model `%s`\n", model.Name, *baseType)
 			}
 
+			foundBelongsTo := IsBelongsTo(field, model, *relatedModel)
+			hasOne := IsHasOne(field, model, *relatedModel)
+
 			if !foundOneToMany {
-				foundBelongsTo := IsBelongsTo(field, model, *relatedModel)
 				if foundBelongsTo {
 					fmt.Printf("Found belongs to relation in model `%s` with model `%s`\n", model.Name, *baseType)
+				} else if hasOne {
+					fmt.Printf("`%s` has one `%s` \n", model.Name, relatedModel.Name)
 				} else {
 					pass.Reportf(field.Pos, "Invalid relation in field `%s`", field.Name)
 				}

tests/testdata/src/relations_check/negative.go

@@ -61,3 +61,17 @@ type ShoppingCart struct {
 	Id              uint `gorm:"primaryKey"`
 	SerializedItems string
 }
+
+// Has one
+
+type Hotel struct {
+	Id uint `gorm:"primaryKey"`
+	Office
+}
+
+type Office struct {
+	Id      uint `gorm:"primaryKey"`
+	Name    string
+	Address string
+	HotelId uint
+}