Feature flag snake-case-field (#176)

Cargo.toml

@@ -24,7 +24,7 @@ thiserror = { version = "1.0.44" }
 fnv = { version = "1.0.7" }
 
 [features]
-default = []
+default = ["camel-case-field"]
 with-json = ["sea-orm/with-json"]
 with-chrono = ["sea-orm/with-chrono", "async-graphql/chrono"]
 with-time = ["sea-orm/with-time", "async-graphql/time"]
@@ -34,3 +34,5 @@ with-bigdecimal = ["sea-orm/with-bigdecimal", "async-graphql/bigdecimal"]
 with-postgres-array = ["sea-orm/postgres-array"]
 # with-ipnetwork = ["sea-orm/with-ipnetwork"]
 # with-mac_address = ["sea-orm/with-mac_address"]
+snake-case-field = []
+camel-case-field = []

src/enumerations/active_enum.rs

@@ -1,5 +1,5 @@
 use async_graphql::dynamic::Enum;
-use heck::ToUpperCamelCase;
+use heck::{ToSnakeCase, ToUpperCamelCase};
 use sea_orm::{ActiveEnum, DynIden, Value};
 
 use crate::BuilderContext;
@@ -19,7 +19,11 @@ impl std::default::Default for ActiveEnumConfig {
                 format!("{}Enum", name.to_upper_camel_case())
             }),
             variant_name: Box::new(|_enum_name: &str, variant: &str| -> String {
-                variant.to_upper_camel_case().to_ascii_uppercase()
+                if cfg!(feature = "snake-case-field") {
+                    variant.to_snake_case()
+                } else {
+                    variant.to_upper_camel_case().to_ascii_uppercase()
+                }
             }),
         }
     }

src/inputs/active_enum_filter_input.rs

@@ -1,7 +1,7 @@
 use std::collections::BTreeSet;
 
 use async_graphql::dynamic::ObjectAccessor;
-use heck::ToUpperCamelCase;
+use heck::{ToSnakeCase, ToUpperCamelCase};
 use sea_orm::{ActiveEnum, ColumnTrait, ColumnType, Condition, DynIden, EntityTrait};
 
 use crate::{ActiveEnumBuilder, BuilderContext, FilterInfo, FilterOperation, SeaResult};
@@ -88,10 +88,12 @@ where
 
     let extract_variant = move |input: &str| -> String {
         let variant = variants.iter().find(|variant| {
-            let variant = variant
-                .to_string()
-                .to_upper_camel_case()
-                .to_ascii_uppercase();
+            let variant = variant.to_string();
+            let variant = if cfg!(feature = "snake-case-field") {
+                variant.to_snake_case()
+            } else {
+                variant.to_upper_camel_case().to_ascii_uppercase()
+            };
             variant.eq(input)
         });
         variant.unwrap().to_string()

src/mutation/entity_create_batch_mutation.rs

@@ -19,7 +19,14 @@ pub struct EntityCreateBatchMutationConfig {
 impl std::default::Default for EntityCreateBatchMutationConfig {
     fn default() -> Self {
         EntityCreateBatchMutationConfig {
-            mutation_suffix: "CreateBatch".into(),
+            mutation_suffix: {
+                if cfg!(feature = "snake-case-field") {
+                    "_create_batch"
+                } else {
+                    "CreateBatch"
+                }
+                .into()
+            },
             data_field: "data".into(),
         }
     }

src/mutation/entity_create_one_mutation.rs

@@ -19,7 +19,14 @@ pub struct EntityCreateOneMutationConfig {
 impl std::default::Default for EntityCreateOneMutationConfig {
     fn default() -> Self {
         EntityCreateOneMutationConfig {
-            mutation_suffix: "CreateOne".into(),
+            mutation_suffix: {
+                if cfg!(feature = "snake-case-field") {
+                    "_create_one"
+                } else {
+                    "CreateOne"
+                }
+                .into()
+            },
             data_field: "data".into(),
         }
     }

src/mutation/entity_delete_mutation.rs

@@ -20,7 +20,14 @@ pub struct EntityDeleteMutationConfig {
 impl std::default::Default for EntityDeleteMutationConfig {
     fn default() -> Self {
         Self {
-            mutation_suffix: "Delete".into(),
+            mutation_suffix: {
+                if cfg!(feature = "snake-case-field") {
+                    "_delete"
+                } else {
+                    "Delete"
+                }
+                .into()
+            },
             filter_field: "filter".into(),
         }
     }

src/mutation/entity_update_mutation.rs

@@ -24,7 +24,14 @@ pub struct EntityUpdateMutationConfig {
 impl std::default::Default for EntityUpdateMutationConfig {
     fn default() -> Self {
         Self {
-            mutation_suffix: "Update".into(),
+            mutation_suffix: {
+                if cfg!(feature = "snake-case-field") {
+                    "_update"
+                } else {
+                    "Update"
+                }
+                .into()
+            },
             data_field: "data".into(),
             filter_field: "filter".into(),
         }

src/outputs/connection_object.rs

@@ -42,8 +42,22 @@ impl std::default::Default for ConnectionObjectConfig {
             type_name: Box::new(|object_name: &str| -> String {
                 format!("{object_name}Connection")
             }),
-            page_info: "pageInfo".into(),
-            pagination_info: "paginationInfo".into(),
+            page_info: {
+                if cfg!(feature = "snake-case-field") {
+                    "page_info"
+                } else {
+                    "pageInfo"
+                }
+                .into()
+            },
+            pagination_info: {
+                if cfg!(feature = "snake-case-field") {
+                    "pagination_info"
+                } else {
+                    "paginationInfo"
+                }
+                .into()
+            },
             edges: "edges".into(),
             nodes: "nodes".into(),
         }

src/outputs/entity_object.rs

@@ -1,6 +1,6 @@
 use async_graphql::dynamic::{Field, FieldFuture, Object};
 use async_graphql::{Error, Value};
-use heck::{ToLowerCamelCase, ToUpperCamelCase};
+use heck::{ToLowerCamelCase, ToSnakeCase, ToUpperCamelCase};
 use sea_orm::{ColumnTrait, ColumnType, EntityName, EntityTrait, IdenStatic, Iterable, ModelTrait};
 
 /// The configuration structure for EntityObjectBuilder
@@ -20,7 +20,11 @@ impl std::default::Default for EntityObjectConfig {
                 entity_name.to_upper_camel_case()
             }),
             column_name: Box::new(|_entity_name: &str, column_name: &str| -> String {
-                column_name.to_lower_camel_case()
+                if cfg!(feature = "snake-case-field") {
+                    column_name.to_snake_case()
+                } else {
+                    column_name.to_lower_camel_case()
+                }
             }),
             basic_type_suffix: "Basic".into(),
         }

src/outputs/page_info_object.rs

@@ -30,10 +30,38 @@ impl std::default::Default for PageInfoObjectConfig {
     fn default() -> Self {
         PageInfoObjectConfig {
             type_name: "PageInfo".into(),
-            has_previous_page: "hasPreviousPage".into(),
-            has_next_page: "hasNextPage".into(),
-            start_cursor: "startCursor".into(),
-            end_cursor: "endCursor".into(),
+            has_previous_page: {
+                if cfg!(feature = "snake-case-field") {
+                    "has_previous_page"
+                } else {
+                    "hasPreviousPage"
+                }
+                .into()
+            },
+            has_next_page: {
+                if cfg!(feature = "snake-case-field") {
+                    "has_next_page"
+                } else {
+                    "hasNextPage"
+                }
+                .into()
+            },
+            start_cursor: {
+                if cfg!(feature = "snake-case-field") {
+                    "start_cursor"
+                } else {
+                    "startCursor"
+                }
+                .into()
+            },
+            end_cursor: {
+                if cfg!(feature = "snake-case-field") {
+                    "end_cursor"
+                } else {
+                    "endCursor"
+                }
+                .into()
+            },
         }
     }
 }

src/query/entity_object_relation.rs

@@ -3,7 +3,7 @@ use async_graphql::{
     dynamic::{Field, FieldFuture, FieldValue, InputValue, TypeRef},
     Error,
 };
-use heck::ToSnakeCase;
+use heck::{ToLowerCamelCase, ToSnakeCase};
 use sea_orm::{EntityTrait, Iden, ModelTrait, RelationDef};
 
 use crate::{
@@ -30,6 +30,11 @@ impl EntityObjectRelationBuilder {
         <R as sea_orm::EntityTrait>::Model: Sync,
         <<R as sea_orm::EntityTrait>::Column as std::str::FromStr>::Err: core::fmt::Debug,
     {
+        let name = if cfg!(feature = "snake-case-field") {
+            name.to_snake_case()
+        } else {
+            name.to_lower_camel_case()
+        };
         let context: &'static BuilderContext = self.context;
         let entity_object_builder = EntityObjectBuilder { context };
         let connection_object_builder = ConnectionObjectBuilder { context };

src/query/entity_object_via_relation.rs

@@ -3,7 +3,7 @@ use async_graphql::{
     dynamic::{Field, FieldFuture, FieldValue, InputValue, TypeRef},
     Error,
 };
-use heck::ToSnakeCase;
+use heck::{ToLowerCamelCase, ToSnakeCase};
 use sea_orm::{
     ColumnTrait, Condition, DatabaseConnection, EntityTrait, Iden, ModelTrait, QueryFilter, Related,
 };
@@ -33,6 +33,11 @@ impl EntityObjectViaRelationBuilder {
         <<T as sea_orm::EntityTrait>::Column as std::str::FromStr>::Err: core::fmt::Debug,
         <<R as sea_orm::EntityTrait>::Column as std::str::FromStr>::Err: core::fmt::Debug,
     {
+        let name = if cfg!(feature = "snake-case-field") {
+            name.to_snake_case()
+        } else {
+            name.to_lower_camel_case()
+        };
         let context: &'static BuilderContext = self.context;
         let to_relation_definition = <T as Related<R>>::to();
         let (via_relation_definition, is_via_relation) = match <T as Related<R>>::via() {

src/query/entity_query_field.rs

@@ -2,7 +2,7 @@ use async_graphql::{
     dynamic::{Field, FieldFuture, FieldValue, InputValue, TypeRef},
     Error,
 };
-use heck::ToLowerCamelCase;
+use heck::{ToLowerCamelCase, ToSnakeCase};
 use sea_orm::{DatabaseConnection, EntityTrait, QueryFilter};
 
 use crate::{
@@ -27,10 +27,21 @@ impl std::default::Default for EntityQueryFieldConfig {
     fn default() -> Self {
         EntityQueryFieldConfig {
             type_name: Box::new(|object_name: &str| -> String {
-                object_name.to_lower_camel_case()
+                if cfg!(feature = "snake-case-field") {
+                    object_name.to_snake_case()
+                } else {
+                    object_name.to_lower_camel_case()
+                }
             }),
             filters: "filters".into(),
-            order_by: "orderBy".into(),
+            order_by: {
+                if cfg!(feature = "snake-case-field") {
+                    "order_by"
+                } else {
+                    "orderBy"
+                }
+                .into()
+            },
             pagination: "pagination".into(),
         }
     }