diff --git a/comps/form/field/FieldInput.tsx b/comps/form/field/FieldInput.tsx
index ebefd78..90658a3 100755
--- a/comps/form/field/FieldInput.tsx
+++ b/comps/form/field/FieldInput.tsx
@@ -46,6 +46,7 @@ export const FieldInput: FC<{
 
           const props = found.component.props;
           let should_update = false;
+
           for (const [k, v] of Object.entries(item.component.props) as any) {
             if (props[k] && props[k].valueBuilt === v.valueBuilt) {
               continue;
@@ -88,9 +89,8 @@ export const FieldInput: FC<{
               : field.focused &&
                 "c-border-blue-700 c-outline c-outline-blue-700",
         css`
-          > div {
+          & > .field-inner {
             min-height: 35px;
-            line-height: 35px;
           }
         `
       )}
diff --git a/comps/form/field/raw/FieldLoading.tsx b/comps/form/field/raw/FieldLoading.tsx
index c10c5f2..e842e98 100755
--- a/comps/form/field/raw/FieldLoading.tsx
+++ b/comps/form/field/raw/FieldLoading.tsx
@@ -2,7 +2,7 @@ import { Skeleton } from "@/comps/ui/skeleton";
 
 export const FieldLoading = () => {
   return (
-    <div className="c-flex c-flex-col c-space-y-1 c-p-1 c-justify-center">
+    <div className="field-inner c-flex c-flex-col c-space-y-1 c-p-1 c-justify-center">
       <div className="c-flex c-space-x-1">
         <Skeleton
           className={css`
diff --git a/comps/form/field/type/TypeRelation.tsx b/comps/form/field/type/TypeRelation.tsx
index 11ac3b4..5903313 100755
--- a/comps/form/field/type/TypeRelation.tsx
+++ b/comps/form/field/type/TypeRelation.tsx
@@ -10,6 +10,10 @@ export type PropTypeRelation = {
   on_load: (opt: { value?: any }) => Promise<{ items: any[]; pk: string }>;
   label: (item: any, pk: string) => string;
   id_parent: string;
+  has_many: "checkbox" | "typeahead";
+  has_many_list: (opt: {
+    value?: any;
+  }) => Promise<{ value: string; label: string }[]>;
 };
 export const FieldTypeRelation: FC<{
   field: FieldLocal;
@@ -17,6 +21,79 @@ export const FieldTypeRelation: FC<{
   prop: PropTypeRelation;
   PassProp: any;
   child: any;
+}> = (props) => {
+  if (props.prop.type === "has-one") return <HasOne {...props} />;
+  return <HasMany {...props} />;
+};
+
+const HasMany: FC<{
+  field: FieldLocal;
+  fm: FMLocal;
+  prop: PropTypeRelation;
+  PassProp: any;
+  child: any;
+}> = ({ field, fm, prop, PassProp, child }) => {
+  const input = useLocal({
+    list: null as null | any[],
+    many: [] as { value: string; label: string }[],
+    pk: "",
+  });
+  const value = fm.data[field.name];
+  field.input = input;
+  field.prop = prop;
+
+  useEffect(() => {
+    if (!isEditor && input.list === null) {
+      field.status = "loading";
+      field.render();
+
+      const callback = (arg: { items: any[]; pk: string }) => {
+        input.list = arg.items;
+        input.pk = arg.pk;
+        field.status = "ready";
+        input.render();
+      };
+      const res = prop.on_load({ value });
+      if (res instanceof Promise) res.then(callback);
+      else callback(res);
+
+      const many_list_loaded = (arg: { value: string; label: string }[]) => {
+        input.many = arg;
+        input.render();
+      };
+      const many_res = prop.has_many_list({ value });
+      if (res instanceof Promise) many_res.then(many_list_loaded);
+      else many_list_loaded(res);
+    }
+  }, []);
+
+  if (isEditor) {
+    input.many = [
+      { value: "sample 1", label: "sample 1" },
+      { value: "sample 2", label: "sample 2" },
+    ];
+  }
+
+  return (
+    <div className="c-flex c-flex-col c-p-2 c-items-stretch">
+      {input.many.map((e, idx) => {
+        return (
+          <label key={idx} className="c-flex c-items-center c-space-x-1">
+            <input type="checkbox" value={e.value} />
+            <div className="c-flex-1">{e.label}</div>
+          </label>
+        );
+      })}
+    </div>
+  );
+};
+
+const HasOne: FC<{
+  field: FieldLocal;
+  fm: FMLocal;
+  prop: PropTypeRelation;
+  PassProp: any;
+  child: any;
 }> = ({ field, fm, prop, PassProp, child }) => {
   const input = useLocal({
     list: null as null | any[],
@@ -27,7 +104,7 @@ export const FieldTypeRelation: FC<{
   field.prop = prop;
 
   useEffect(() => {
-    if (input.list === null) {
+    if (!isEditor && input.list === null) {
       field.status = "loading";
       field.render();
 
diff --git a/comps/form/typings.ts b/comps/form/typings.ts
index e9bd024..8f9427f 100755
--- a/comps/form/typings.ts
+++ b/comps/form/typings.ts
@@ -22,6 +22,7 @@ export type FMProps = {
   label_mode: "vertical" | "horizontal" | "hidden";
   label_width: number;
   gen_fields: any;
+  gen_table: string;
 };
 
 export type FieldProp = {
diff --git a/gen/gen_form/gen_form.ts b/gen/gen_form/gen_form.ts
index 501e231..160ce32 100755
--- a/gen/gen_form/gen_form.ts
+++ b/gen/gen_form/gen_form.ts
@@ -61,7 +61,9 @@ export const gen_form = async (modify: (data: any) => void, data: any) => {
     result["body"] = data["body"];
     result.body.content.childs = [];
     for (const item of fields.filter((e) => !e.is_pk)) {
-      result.body.content.childs.push(await newField(item));
+      result.body.content.childs.push(
+        await newField(item, { parent_table: table })
+      );
     }
   }
   modify(result);
diff --git a/gen/gen_form/new_field.ts b/gen/gen_form/new_field.ts
index 9aeb80a..1897732 100755
--- a/gen/gen_form/new_field.ts
+++ b/gen/gen_form/new_field.ts
@@ -1,6 +1,7 @@
 import { createId } from "@paralleldrive/cuid2";
 import { GFCol, createItem, formatName } from "../utils";
 import { gen_relation } from "../gen_relation/gen_relation";
+import { FMLocal } from "@/comps/form/typings";
 export const newItem = (component: {
   id: string;
   props: Record<string, string>;
@@ -29,7 +30,7 @@ export type NewFieldArg = {
   };
 };
 
-export const newField = async (arg: GFCol) => {
+export const newField = async (arg: GFCol, opt: { parent_table: string }) => {
   const childs = [];
 
   let type = "text";
@@ -62,11 +63,18 @@ export const newField = async (arg: GFCol) => {
           label: [`() => {}`],
           gen_table: arg.relation.to.table,
           gen_fields: [value, value],
+          has_many_from:
+            arg.type === "has-many" ? arg.relation.from.table : undefined,
+          has_many_list: arg.type === "has-many" ? [`null`] : undefined,
           child: {},
         },
       },
     });
-    await gen_relation(() => {}, item.component.props);
+    await gen_relation(() => {}, item.component.props, {
+      id_parent: "",
+      type: arg.type as any,
+      parent_table: opt.parent_table,
+    });
     childs.push(item);
   }
 
diff --git a/gen/gen_relation/gen_relation.ts b/gen/gen_relation/gen_relation.ts
index 55e73cb..c2be375 100755
--- a/gen/gen_relation/gen_relation.ts
+++ b/gen/gen_relation/gen_relation.ts
@@ -1,4 +1,5 @@
 import { codeBuild } from "../master_detail/utils";
+import { gen_prop_fields } from "../prop/gen_prop_fields";
 import { GFCol, parseGenField } from "../utils";
 import { newField } from "./new_field";
 import { on_load } from "./on_load";
@@ -6,19 +7,42 @@ import { on_load } from "./on_load";
 export const gen_relation = async (
   modify: (data: any) => void,
   data: any,
-  arg: { id_parent: string }
+  arg: { id_parent: string; type: "has-many" | "has-one"; parent_table: string }
 ) => {
   const table = JSON.parse(data.gen_table.value);
   const raw_fields = JSON.parse(data.gen_fields.value) as (
     | string
     | { value: string; checked: string[] }
   )[];
-  const select = {} as any;
-  let pk: null | GFCol = null;
-  let pks: Record<string, string> = {};
 
   const fields = parseGenField(raw_fields);
+  if (arg.type === "has-one") {
+    await genHasOne(modify, data, arg, { table, fields });
+  } else {
+    await genHasMany(modify, data, arg, { table, fields });
+  }
+};
+
+const genHasMany = async (
+  modify: (data: any) => void,
+  data: any,
+  arg: {
+    id_parent: string;
+    type: "has-many" | "has-one";
+    parent_table: string;
+  },
+  pass: {
+    table: string;
+    fields: GFCol[];
+  }
+) => {
+  const { table, fields } = pass;
+
+  let pk: null | GFCol = null;
+  let pks: Record<string, string> = {};
+  const select = {} as any;
   const result = {} as any;
+
   for (const f of fields) {
     select[f.name] = true;
     if (f.relation) {
@@ -35,7 +59,119 @@ export const gen_relation = async (
     }
   }
 
-  if (arg.id_parent) {
+  if (arg && arg.id_parent) {
+    select[arg.id_parent] = true;
+  }
+
+  if (!pk) {
+    alert("Failed to generate! Primary Key not found. ");
+    return;
+  }
+
+  if (pk) {
+    const code = {} as any;
+    if (data["on_load"]) {
+      result["on_load"] = data["on_load"];
+      result["on_load"].value = on_load({
+        pk,
+        pks,
+        select,
+        table,
+        id_parent: arg.id_parent,
+      });
+      code.on_load = result["on_load"].value;
+    }
+
+    if (data["has_many_from"] && arg.parent_table) {
+      result["has_many_from"] = data["has_many_from"];
+      result["has_many_from"].value = `"${arg.parent_table}"`;
+      result["has_many_from"].valueBuilt = `"${arg.parent_table}"`;
+    }
+
+    if (data["has_many_list"] && arg.parent_table) {
+      const defs = parseGenField(
+        (await gen_prop_fields(arg.parent_table)).map((e: any) => e.value)
+      );
+      const pk = defs.find((e) => e.is_pk);
+
+      result["has_many_list"] = data["has_many_list"];
+      result["has_many_list"].value = `\
+async () => {
+  const result: { value: string; label: string }[] = [];
+  const list = await db.${arg.parent_table}.findMany({
+    select: { 
+      ${pk}: true,
+    },
+    where: { },
+  });
+  return result;
+}`;
+      code.has_many_list = result["has_many_list"].value;
+    }
+
+    if (data["label"]) {
+      result["label"] = data["label"];
+      result["label"].value = `\
+(item:any, pk:string) => {
+  return \`${Object.entries(select)
+    .filter(([k, v]) => {
+      if (typeof v !== "object" && k !== pk?.name && k !== arg.id_parent) {
+        return true;
+      }
+    })
+    .map(([name]) => {
+      return `\${item.${name}}`;
+    })
+    .join(" ")}\`
+}`;
+      code.on_load = result["on_load"].value;
+    }
+
+    const res = await codeBuild(code);
+    for (const [k, v] of Object.entries(res)) {
+      result[k].valueBuilt = v[1];
+    }
+
+    result["child"] = data["child"];
+    result.child.content.childs = fields.filter((e) => !e.is_pk).map(newField);
+  }
+
+  modify(result);
+};
+
+const genHasOne = async (
+  modify: (data: any) => void,
+  data: any,
+  arg: { id_parent: string; type: "has-many" | "has-one" },
+  pass: {
+    table: string;
+    fields: GFCol[];
+  }
+) => {
+  const { table, fields } = pass;
+
+  let pk: null | GFCol = null;
+  let pks: Record<string, string> = {};
+  const select = {} as any;
+  const result = {} as any;
+
+  for (const f of fields) {
+    select[f.name] = true;
+    if (f.relation) {
+      select[f.name] = {
+        select: {},
+      };
+      for (const r of f.relation.fields) {
+        select[f.name].select[r.name] = true;
+      }
+    }
+
+    if (f.is_pk) {
+      pk = f;
+    }
+  }
+
+  if (arg && arg.id_parent) {
     select[arg.id_parent] = true;
   }
 
diff --git a/gen/prop/gen_prop_fields.ts b/gen/prop/gen_prop_fields.ts
index bf34a14..310fb6f 100755
--- a/gen/prop/gen_prop_fields.ts
+++ b/gen/prop/gen_prop_fields.ts
@@ -1,4 +1,43 @@
 const cache = {} as Record<string, any>;
+const single = {} as Record<
+  string,
+  {
+    cols: Record<
+      string,
+      {
+        is_pk: boolean;
+        type: string;
+        optional: boolean;
+        db_type: string;
+        default?: any;
+      }
+    >;
+    rels: Record<
+      string,
+      {
+        type: "has-many" | "has-one";
+        to: {
+          table: string;
+          fields: string[];
+        };
+        from: {
+          table: string;
+          fields: string[];
+        };
+      }
+    >;
+  }
+>;
+
+const load_single = async (table: string) => {
+  if (!single[table]) {
+    single[table] = {
+      cols: await db._schema.columns(table),
+      rels: await db._schema.rels(table),
+    };
+  }
+  return single[table];
+};
 
 export const gen_prop_fields = async (gen_table: string) => {
   if (cache[gen_table]) return cache[gen_table];
@@ -9,27 +48,10 @@ export const gen_prop_fields = async (gen_table: string) => {
     options?: any[];
     checked?: boolean;
   }[] = [];
-  const fields = await db._schema.columns(gen_table);
-  for (const [k, v] of Object.entries(fields)) {
-    result.push({
-      value: JSON.stringify({
-        name: k,
-        is_pk: v.is_pk,
-        type: v.db_type || v.type,
-        optional: v.optional,
-      }),
-      label: k,
-      checked: v.is_pk,
-    });
-  }
-  const rels = await db._schema.rels(gen_table);
-  for (const [k, v] of Object.entries(rels)) {
-    let options = [];
-    const to = v.to;
-    const from = v.from;
-    const fields = await db._schema.columns(v.to.table);
-    for (const [k, v] of Object.entries(fields)) {
-      options.push({
+  const { cols, rels } = await load_single(gen_table);
+  if (cols) {
+    for (const [k, v] of Object.entries(cols) as any) {
+      result.push({
         value: JSON.stringify({
           name: k,
           is_pk: v.is_pk,
@@ -40,22 +62,125 @@ export const gen_prop_fields = async (gen_table: string) => {
         checked: v.is_pk,
       });
     }
-    result.push({
-      value: JSON.stringify({
-        name: k,
-        is_pk: false,
-        type: v.type,
-        optional: true,
-        relation: { from, to },
-      }),
-      label: k,
-      options,
-    });
   }
-
-  if (!cache[gen_table]) {
-    cache[gen_table] = result;
+  if (rels) {
+    for (const [k, v] of Object.entries(rels)) {
+      let options = [];
+      const to = v.to;
+      const from = v.from;
+      const { cols, rels } = await load_single(v.to.table);
+      if (cols) {
+        for (const [k, v] of Object.entries(cols)) {
+          options.push({
+            value: JSON.stringify({
+              name: k,
+              is_pk: v.is_pk,
+              type: v.db_type || v.type,
+              optional: v.optional,
+            }),
+            label: k,
+            checked: v.is_pk,
+          });
+        }
+      }
+      if (rels) {
+        for (const [k, v] of Object.entries(rels)) {
+          let sub_opt = [];
+          const to = v.to;
+          const from = v.from;
+          const { cols } = await load_single(v.to.table);
+          for (const [k, v] of Object.entries(cols)) {
+            sub_opt.push({
+              value: JSON.stringify({
+                name: k,
+                is_pk: v.is_pk,
+                type: v.db_type || v.type,
+                optional: v.optional,
+              }),
+              label: k,
+              checked: v.is_pk,
+            });
+          }
+          options.push({
+            value: JSON.stringify({
+              name: k,
+              is_pk: false,
+              type: v.type,
+              optional: true,
+              relation: { from, to },
+            }),
+            label: k,
+            options: sub_opt,
+          });
+        }
+      }
+      result.push({
+        value: JSON.stringify({
+          name: k,
+          is_pk: false,
+          type: v.type,
+          optional: true,
+          relation: { from, to },
+        }),
+        label: k,
+        options,
+      });
+    }
   }
 
   return result;
 };
+
+// const result: {
+//   label: string;
+//   value: string;
+//   options?: any[];
+//   checked?: boolean;
+// }[] = [];
+// const fields = await db._schema.columns(gen_table);
+// for (const [k, v] of Object.entries(fields)) {
+//   result.push({
+//     value: JSON.stringify({
+//       name: k,
+//       is_pk: v.is_pk,
+//       type: v.db_type || v.type,
+//       optional: v.optional,
+//     }),
+//     label: k,
+//     checked: v.is_pk,
+//   });
+// }
+// const rels = await db._schema.rels(gen_table);
+// for (const [k, v] of Object.entries(rels)) {
+//   let options = [];
+//   const to = v.to;
+//   const from = v.from;
+//   const fields = await db._schema.columns(v.to.table);
+//   for (const [k, v] of Object.entries(fields)) {
+//     options.push({
+//       value: JSON.stringify({
+//         name: k,
+//         is_pk: v.is_pk,
+//         type: v.db_type || v.type,
+//         optional: v.optional,
+//       }),
+//       label: k,
+//       checked: v.is_pk,
+//     });
+//   }
+//   result.push({
+//     value: JSON.stringify({
+//       name: k,
+//       is_pk: false,
+//       type: v.type,
+//       optional: true,
+//       relation: { from, to },
+//     }),
+//     label: k,
+//     options,
+//   });
+// }
+
+// if (!cache[gen_table]) {
+//   cache[gen_table] = result;
+// }
diff --git a/gen/utils.ts b/gen/utils.ts
index ae5343d..9444251 100755
--- a/gen/utils.ts
+++ b/gen/utils.ts
@@ -60,7 +60,10 @@ type SimplifiedItem = {
   name?: string;
   component?: {
     id: string;
-    props: Record<string, string | SimplifiedItem | [any] | [any, any]>;
+    props: Record<
+      string,
+      string | SimplifiedItem | [any] | [any, any] | undefined
+    >;
   };
   childs?: SimplifiedItem[];
   adv?: {
@@ -80,6 +83,7 @@ export const createItem = (arg: SimplifiedItem): any => {
 
     if (arg.component.props) {
       for (const [k, v] of Object.entries(arg.component.props)) {
+        if (v === undefined) continue;
         if (typeof v === "object") {
           if (Array.isArray(v) && v.length === 1) {
             component.props[k] = {