Allow input and display of floats for Number fields (#7340)

### Description

- We added a decimal field for a Number Field type in the settings
- We updated the Number Field type create a form with decimals input
- We are not implementing the dropdown present on the Figma because it
seems not related

### Demo


<https://www.loom.com/share/18a8d4b712a14f6d8b66806764f8467f?sid=3fc79b46-ae32-46e3-8635-d0eee02e53b2>

Fixes #6987

---------

Co-authored-by: gitstart-twenty <gitstart-twenty@users.noreply.github.com>
Co-authored-by: Marie Stoppa <marie.stoppa@essec.edu>

packages/twenty-front/src/modules/object-metadata/hooks/__mocks__/useFieldMetadataItem.ts

@@ -51,6 +51,7 @@ export const queries = {
         ${baseFields}
         defaultValue
         options
+        settings
       }
     }
   `,

packages/twenty-front/src/modules/object-metadata/types/FieldMetadataItem.ts

@@ -17,7 +17,7 @@ export type FieldMetadataItemOption = {
 
 export type FieldMetadataItem = Omit<
   Field,
-  '__typename' | 'defaultValue' | 'options' | 'settings' | 'relationDefinition'
+  '__typename' | 'defaultValue' | 'options' | 'relationDefinition'
 > & {
   __typename?: string;
   defaultValue?: any;

packages/twenty-front/src/modules/object-metadata/utils/formatFieldMetadataItemAsFieldDefinition.ts

@@ -54,5 +54,6 @@ export const formatFieldMetadataItemAsFieldDefinition = ({
       metadata: fieldDefintionMetadata,
       type: field.type,
     }),
+    settings: field.settings,
   };
 };

packages/twenty-front/src/modules/object-record/record-board/record-board-card/components/RecordBoardCard.tsx

@@ -338,6 +338,7 @@ export const RecordBoardCard = ({
                         metadata: fieldDefinition.metadata,
                         type: fieldDefinition.type,
                       }),
+                      settings: fieldDefinition.settings,
                     },
                     useUpdateRecord: useUpdateOneRecordHook,
                     hotkeyScope: InlineCellHotkeyScope.InlineCell,

packages/twenty-front/src/modules/object-record/record-field/meta-types/display/components/NumberFieldDisplay.tsx

@@ -2,7 +2,11 @@ import { useNumberFieldDisplay } from '@/object-record/record-field/meta-types/h
 import { NumberDisplay } from '@/ui/field/display/components/NumberDisplay';
 
 export const NumberFieldDisplay = () => {
-  const { fieldValue } = useNumberFieldDisplay();
-
-  return <NumberDisplay value={fieldValue} />;
+  const { fieldValue, fieldDefinition } = useNumberFieldDisplay();
+  return (
+    <NumberDisplay
+      value={fieldValue}
+      decimals={fieldDefinition.settings?.decimals}
+    />
+  );
 };

packages/twenty-front/src/modules/object-record/record-field/meta-types/hooks/useNumberField.ts

@@ -5,10 +5,11 @@ import { useRecordFieldInput } from '@/object-record/record-field/hooks/useRecor
 import { FieldNumberValue } from '@/object-record/record-field/types/FieldMetadata';
 import { recordStoreFamilySelector } from '@/object-record/record-store/states/selectors/recordStoreFamilySelector';
 import { FieldMetadataType } from '~/generated-metadata/graphql';
+
 import {
-  canBeCastAsIntegerOrNull,
-  castAsIntegerOrNull,
-} from '~/utils/cast-as-integer-or-null';
+  canBeCastAsNumberOrNull,
+  castAsNumberOrNull,
+} from '~/utils/cast-as-number-or-null';
 
 import { FieldContext } from '../../contexts/FieldContext';
 import { usePersistField } from '../../hooks/usePersistField';
@@ -32,11 +33,11 @@ export const useNumberField = () => {
   const persistField = usePersistField();
 
   const persistNumberField = (newValue: string) => {
-    if (!canBeCastAsIntegerOrNull(newValue)) {
+    if (!canBeCastAsNumberOrNull(newValue)) {
       return;
     }
 
-    const castedValue = castAsIntegerOrNull(newValue);
+    const castedValue = castAsNumberOrNull(newValue);
 
     persistField(castedValue);
   };

packages/twenty-front/src/modules/object-record/record-field/types/FieldDefinition.ts

@@ -16,4 +16,7 @@ export type FieldDefinition<T extends FieldMetadata> = {
   infoTooltipContent?: string;
   defaultValue?: any;
   editButtonIcon?: IconComponent;
+  settings?: {
+    decimals?: number;
+  };
 };

packages/twenty-front/src/modules/object-record/record-field/validation-schemas/numberFieldDefaultValueSchema.ts

@@ -0,0 +1,5 @@
+import { z } from 'zod';
+
+export const numberFieldDefaultValueSchema = z.object({
+  decimals: z.number().nullable(),
+});

packages/twenty-front/src/modules/settings/data-model/fields/forms/components/SettingsDataModelFieldSettingsFormCard.tsx

@@ -11,6 +11,8 @@ import { settingsDataModelFieldCurrencyFormSchema } from '@/settings/data-model/
 import { SettingsDataModelFieldCurrencySettingsFormCard } from '@/settings/data-model/fields/forms/currency/components/SettingsDataModelFieldCurrencySettingsFormCard';
 import { settingsDataModelFieldDateFormSchema } from '@/settings/data-model/fields/forms/date/components/SettingsDataModelFieldDateForm';
 import { SettingsDataModelFieldDateSettingsFormCard } from '@/settings/data-model/fields/forms/date/components/SettingsDataModelFieldDateSettingsFormCard';
+import { settingsDataModelFieldNumberFormSchema } from '@/settings/data-model/fields/forms/number/components/SettingsDataModelFieldNumberForm';
+import { SettingsDataModelFieldNumberSettingsFormCard } from '@/settings/data-model/fields/forms/number/components/SettingsDataModelFieldNumberSettingsFormCard';
 import { settingsDataModelFieldRelationFormSchema } from '@/settings/data-model/fields/forms/relation/components/SettingsDataModelFieldRelationForm';
 import { SettingsDataModelFieldRelationSettingsFormCard } from '@/settings/data-model/fields/forms/relation/components/SettingsDataModelFieldRelationSettingsFormCard';
 import {
@@ -52,6 +54,10 @@ const multiSelectFieldFormSchema = z
   .object({ type: z.literal(FieldMetadataType.MultiSelect) })
   .merge(settingsDataModelFieldMultiSelectFormSchema);
 
+const numberFieldFormSchema = z
+  .object({ type: z.literal(FieldMetadataType.Number) })
+  .merge(settingsDataModelFieldNumberFormSchema);
+
 const otherFieldsFormSchema = z.object({
   type: z.enum(
     Object.keys(
@@ -63,6 +69,7 @@ const otherFieldsFormSchema = z.object({
         FieldMetadataType.MultiSelect,
         FieldMetadataType.Date,
         FieldMetadataType.DateTime,
+        FieldMetadataType.Number,
       ]),
     ) as [FieldMetadataType, ...FieldMetadataType[]],
   ),
@@ -78,13 +85,17 @@ export const settingsDataModelFieldSettingsFormSchema = z.discriminatedUnion(
     relationFieldFormSchema,
     selectFieldFormSchema,
     multiSelectFieldFormSchema,
+    numberFieldFormSchema,
     otherFieldsFormSchema,
   ],
 );
 
 type SettingsDataModelFieldSettingsFormCardProps = {
   isCreatingField?: boolean;
-  fieldMetadataItem: Pick<FieldMetadataItem, 'icon' | 'label' | 'type'> &
+  fieldMetadataItem: Pick<
+    FieldMetadataItem,
+    'icon' | 'label' | 'type' | 'isCustom'
+  > &
     Partial<Omit<FieldMetadataItem, 'icon' | 'label' | 'type'>>;
 } & Pick<SettingsDataModelFieldPreviewCardProps, 'objectMetadataItem'>;
 
@@ -163,6 +174,16 @@ export const SettingsDataModelFieldSettingsFormCard = ({
     );
   }
 
+  if (fieldMetadataItem.type === FieldMetadataType.Number) {
+    return (
+      <SettingsDataModelFieldNumberSettingsFormCard
+        disabled={fieldMetadataItem.isCustom === false}
+        fieldMetadataItem={fieldMetadataItem}
+        objectMetadataItem={objectMetadataItem}
+      />
+    );
+  }
+
   if (
     fieldMetadataItem.type === FieldMetadataType.Select ||
     fieldMetadataItem.type === FieldMetadataType.MultiSelect

packages/twenty-front/src/modules/settings/data-model/fields/forms/number/components/SettingsDataModelFieldNumberDecimalInput.tsx

@@ -0,0 +1,168 @@
+import styled from '@emotion/styled';
+
+import { Button } from '@/ui/input/button/components/Button';
+import { TextInput } from '@/ui/input/components/TextInput';
+import { IconInfoCircle, IconMinus, IconPlus } from 'twenty-ui';
+import { castAsNumberOrNull } from '~/utils/cast-as-number-or-null';
+
+type SettingsDataModelFieldNumberDecimalsInputProps = {
+  value: number;
+  onChange: (value: number) => void;
+  disabled?: boolean;
+};
+
+const StyledCounterContainer = styled.div`
+  align-items: center;
+  background: ${({ theme }) => theme.background.noisy};
+  border: 1px solid ${({ theme }) => theme.border.color.medium};
+  border-radius: 4px;
+  display: flex;
+  flex-direction: column;
+  flex: 1;
+  gap: ${({ theme }) => theme.spacing(1)};
+  justify-content: center;
+`;
+
+const StyledExampleText = styled.div`
+  color: ${({ theme }) => theme.font.color.primary};
+  width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  font-weight: ${({ theme }) => theme.font.weight.regular};
+`;
+
+const StyledCounterControlsIcons = styled.div`
+  align-items: center;
+  display: flex;
+  gap: ${({ theme }) => theme.spacing(2)};
+`;
+
+const StyledCounterInnerContainer = styled.div`
+  align-items: center;
+  align-self: stretch;
+  display: flex;
+  gap: ${({ theme }) => theme.spacing(1)};
+  padding: ${({ theme }) => theme.spacing(2)};
+  height: 24px;
+`;
+
+const StyledTextInput = styled(TextInput)`
+  width: ${({ theme }) => theme.spacing(16)};
+  input {
+    width: ${({ theme }) => theme.spacing(16)};
+    height: ${({ theme }) => theme.spacing(6)};
+    text-align: center;
+    font-weight: ${({ theme }) => theme.font.weight.medium};
+    background: ${({ theme }) => theme.background.noisy};
+  }
+  input ~ div {
+    padding-right: ${({ theme }) => theme.spacing(0)};
+    border-radius: ${({ theme }) => theme.spacing(1)};
+    background: ${({ theme }) => theme.background.noisy};
+  }
+`;
+
+const StyledTitle = styled.div`
+  color: ${({ theme }) => theme.font.color.light};
+  font-size: ${({ theme }) => theme.font.size.xs};
+  font-weight: ${({ theme }) => theme.font.weight.semiBold};
+  margin-bottom: ${({ theme }) => theme.spacing(1)};
+`;
+
+const StyledControlButton = styled(Button)`
+  height: ${({ theme }) => theme.spacing(6)};
+  width: ${({ theme }) => theme.spacing(6)};
+  padding: 0;
+  justify-content: center;
+  svg {
+    height: ${({ theme }) => theme.spacing(4)};
+    width: ${({ theme }) => theme.spacing(4)};
+  }
+`;
+
+const StyledInfoButton = styled(Button)`
+  height: ${({ theme }) => theme.spacing(6)};
+  width: ${({ theme }) => theme.spacing(6)};
+  padding: 0;
+  justify-content: center;
+  svg {
+    color: ${({ theme }) => theme.font.color.extraLight};
+    height: ${({ theme }) => theme.spacing(4)};
+    width: ${({ theme }) => theme.spacing(4)};
+  }
+`;
+
+const MIN_VALUE = 0;
+const MAX_VALUE = 100;
+export const SettingsDataModelFieldNumberDecimalsInput = ({
+  value,
+  onChange,
+  disabled,
+}: SettingsDataModelFieldNumberDecimalsInputProps) => {
+  const exampleValue = (1000).toFixed(value);
+
+  const handleIncrementCounter = () => {
+    if (value < MAX_VALUE) {
+      const newValue = value + 1;
+      onChange(newValue);
+    }
+  };
+
+  const handleDecrementCounter = () => {
+    if (value > MIN_VALUE) {
+      const newValue = value - 1;
+      onChange(newValue);
+    }
+  };
+
+  const handleTextInputChange = (value: string) => {
+    const castedNumber = castAsNumberOrNull(value);
+    if (castedNumber === null) {
+      onChange(MIN_VALUE);
+      return;
+    }
+
+    if (castedNumber < MIN_VALUE) {
+      return;
+    }
+
+    if (castedNumber > MAX_VALUE) {
+      onChange(MAX_VALUE);
+      return;
+    }
+    onChange(castedNumber);
+  };
+  return (
+    <>
+      <StyledTitle>Number of decimals</StyledTitle>
+      <StyledCounterContainer>
+        <StyledCounterInnerContainer>
+          <StyledExampleText>Example: {exampleValue}</StyledExampleText>
+          <StyledCounterControlsIcons>
+            <StyledInfoButton variant="tertiary" Icon={IconInfoCircle} />
+            <StyledControlButton
+              variant="secondary"
+              onClick={handleDecrementCounter}
+              Icon={IconMinus}
+              disabled={disabled}
+            />
+            <StyledTextInput
+              name="decimals"
+              fullWidth
+              value={value.toString()}
+              onChange={(value) => handleTextInputChange(value)}
+              disabled={disabled}
+            />
+            <StyledControlButton
+              variant="secondary"
+              onClick={handleIncrementCounter}
+              Icon={IconPlus}
+              disabled={disabled}
+            />
+          </StyledCounterControlsIcons>
+        </StyledCounterInnerContainer>
+      </StyledCounterContainer>
+    </>
+  );
+};

packages/twenty-front/src/modules/settings/data-model/fields/forms/number/components/SettingsDataModelFieldNumberForm.tsx

@@ -0,0 +1,55 @@
+import { Controller, useFormContext } from 'react-hook-form';
+import { z } from 'zod';
+
+import { FieldMetadataItem } from '@/object-metadata/types/FieldMetadataItem';
+import { numberFieldDefaultValueSchema } from '@/object-record/record-field/validation-schemas/numberFieldDefaultValueSchema';
+import { SettingsDataModelFieldNumberDecimalsInput } from '@/settings/data-model/fields/forms/number/components/SettingsDataModelFieldNumberDecimalInput';
+import { CardContent } from '@/ui/layout/card/components/CardContent';
+import { DEFAULT_DECIMAL_VALUE } from '~/utils/format/number';
+
+export const settingsDataModelFieldNumberFormSchema = z.object({
+  settings: numberFieldDefaultValueSchema,
+});
+
+export type SettingsDataModelFieldNumberFormValues = z.infer<
+  typeof settingsDataModelFieldNumberFormSchema
+>;
+
+type SettingsDataModelFieldNumberFormProps = {
+  disabled?: boolean;
+  fieldMetadataItem: Pick<
+    FieldMetadataItem,
+    'icon' | 'label' | 'type' | 'defaultValue' | 'settings'
+  >;
+};
+
+export const SettingsDataModelFieldNumberForm = ({
+  disabled,
+  fieldMetadataItem,
+}: SettingsDataModelFieldNumberFormProps) => {
+  const { control } = useFormContext<SettingsDataModelFieldNumberFormValues>();
+
+  return (
+    <CardContent>
+      <Controller
+        name="settings"
+        defaultValue={{
+          decimals:
+            fieldMetadataItem?.settings?.decimals ?? DEFAULT_DECIMAL_VALUE,
+        }}
+        control={control}
+        render={({ field: { onChange, value } }) => {
+          const count = value?.decimals ?? 0;
+
+          return (
+            <SettingsDataModelFieldNumberDecimalsInput
+              value={count}
+              onChange={(value) => onChange({ decimals: value })}
+              disabled={disabled}
+            ></SettingsDataModelFieldNumberDecimalsInput>
+          );
+        }}
+      />
+    </CardContent>
+  );
+};

packages/twenty-front/src/modules/settings/data-model/fields/forms/number/components/SettingsDataModelFieldNumberSettingsFormCard.tsx

@@ -0,0 +1,45 @@
+import styled from '@emotion/styled';
+
+import { FieldMetadataItem } from '@/object-metadata/types/FieldMetadataItem';
+import { SettingsDataModelPreviewFormCard } from '@/settings/data-model/components/SettingsDataModelPreviewFormCard';
+import { SettingsDataModelFieldNumberForm } from '@/settings/data-model/fields/forms/number/components/SettingsDataModelFieldNumberForm';
+import {
+  SettingsDataModelFieldPreviewCard,
+  SettingsDataModelFieldPreviewCardProps,
+} from '@/settings/data-model/fields/preview/components/SettingsDataModelFieldPreviewCard';
+
+type SettingsDataModelFieldNumberSettingsFormCardProps = {
+  disabled?: boolean;
+  fieldMetadataItem: Pick<
+    FieldMetadataItem,
+    'icon' | 'label' | 'type' | 'defaultValue'
+  >;
+} & Pick<SettingsDataModelFieldPreviewCardProps, 'objectMetadataItem'>;
+
+const StyledFieldPreviewCard = styled(SettingsDataModelFieldPreviewCard)`
+  display: grid;
+  flex: 1 1 100%;
+`;
+
+export const SettingsDataModelFieldNumberSettingsFormCard = ({
+  disabled,
+  fieldMetadataItem,
+  objectMetadataItem,
+}: SettingsDataModelFieldNumberSettingsFormCardProps) => {
+  return (
+    <SettingsDataModelPreviewFormCard
+      preview={
+        <StyledFieldPreviewCard
+          fieldMetadataItem={fieldMetadataItem}
+          objectMetadataItem={objectMetadataItem}
+        />
+      }
+      form={
+        <SettingsDataModelFieldNumberForm
+          disabled={disabled}
+          fieldMetadataItem={fieldMetadataItem}
+        />
+      }
+    />
+  );
+};

packages/twenty-front/src/modules/ui/field/display/components/NumberDisplay.tsx

@@ -4,8 +4,11 @@ import { EllipsisDisplay } from './EllipsisDisplay';
 
 type NumberDisplayProps = {
   value: string | number | null | undefined;
+  decimals?: number;
 };
 
-export const NumberDisplay = ({ value }: NumberDisplayProps) => (
-  <EllipsisDisplay>{value && formatNumber(Number(value))}</EllipsisDisplay>
+export const NumberDisplay = ({ value, decimals }: NumberDisplayProps) => (
+  <EllipsisDisplay>
+    {value && formatNumber(Number(value), decimals)}
+  </EllipsisDisplay>
 );

packages/twenty-front/src/modules/views/utils/mapViewFieldsToColumnDefinitions.ts

@@ -50,6 +50,7 @@ export const mapViewFieldsToColumnDefinitions = ({
         isSortable: correspondingColumnDefinition.isSortable,
         isFilterable: correspondingColumnDefinition.isFilterable,
         defaultValue: correspondingColumnDefinition.defaultValue,
+        settings: correspondingColumnDefinition.settings,
       } as ColumnDefinition<FieldMetadata>;
     })
     .filter(isDefined);

packages/twenty-front/src/utils/__tests__/cast-as-integer-or-null.test.ts

@@ -1,72 +0,0 @@
-import {
-  canBeCastAsIntegerOrNull,
-  castAsIntegerOrNull,
-} from '../cast-as-integer-or-null';
-
-describe('canBeCastAsIntegerOrNull', () => {
-  it(`should return true if null`, () => {
-    expect(canBeCastAsIntegerOrNull(null)).toBeTruthy();
-  });
-
-  it(`should return true if number`, () => {
-    expect(canBeCastAsIntegerOrNull(9)).toBeTruthy();
-  });
-
-  it(`should return true if empty string`, () => {
-    expect(canBeCastAsIntegerOrNull('')).toBeTruthy();
-  });
-
-  it(`should return true if integer string`, () => {
-    expect(canBeCastAsIntegerOrNull('9')).toBeTruthy();
-  });
-
-  it(`should return false if undefined`, () => {
-    expect(canBeCastAsIntegerOrNull(undefined)).toBeFalsy();
-  });
-
-  it(`should return false if non numeric string`, () => {
-    expect(canBeCastAsIntegerOrNull('9a')).toBeFalsy();
-  });
-
-  it(`should return false if non numeric string #2`, () => {
-    expect(canBeCastAsIntegerOrNull('a9a')).toBeFalsy();
-  });
-
-  it(`should return false if float`, () => {
-    expect(canBeCastAsIntegerOrNull(0.9)).toBeFalsy();
-  });
-
-  it(`should return false if float string`, () => {
-    expect(canBeCastAsIntegerOrNull('0.9')).toBeFalsy();
-  });
-});
-
-describe('castAsIntegerOrNull', () => {
-  it(`should cast null to null`, () => {
-    expect(castAsIntegerOrNull(null)).toBe(null);
-  });
-
-  it(`should cast empty string to null`, () => {
-    expect(castAsIntegerOrNull('')).toBe(null);
-  });
-
-  it(`should cast an integer to an integer`, () => {
-    expect(castAsIntegerOrNull(9)).toBe(9);
-  });
-
-  it(`should cast an integer string to an integer`, () => {
-    expect(castAsIntegerOrNull('9')).toBe(9);
-  });
-
-  it(`should throw if trying to cast a float string to an integer`, () => {
-    expect(() => castAsIntegerOrNull('9.9')).toThrow(Error);
-  });
-
-  it(`should throw if trying to cast a non numeric string to an integer`, () => {
-    expect(() => castAsIntegerOrNull('9.9a')).toThrow(Error);
-  });
-
-  it(`should throw if trying to cast an undefined to an integer`, () => {
-    expect(() => castAsIntegerOrNull(undefined)).toThrow(Error);
-  });
-});

packages/twenty-front/src/utils/__tests__/cast-as-number-or-null.test.ts

@@ -0,0 +1,72 @@
+import {
+  canBeCastAsNumberOrNull,
+  castAsNumberOrNull,
+} from '../cast-as-number-or-null';
+
+describe('canBeCastAsNumberOrNull', () => {
+  it(`should return true if null`, () => {
+    expect(canBeCastAsNumberOrNull(null)).toBeTruthy();
+  });
+
+  it(`should return true if number`, () => {
+    expect(canBeCastAsNumberOrNull(9)).toBeTruthy();
+  });
+
+  it(`should return true if empty string`, () => {
+    expect(canBeCastAsNumberOrNull('')).toBeTruthy();
+  });
+
+  it(`should return true if integer string`, () => {
+    expect(canBeCastAsNumberOrNull('9')).toBeTruthy();
+  });
+
+  it(`should return false if undefined`, () => {
+    expect(canBeCastAsNumberOrNull(undefined)).toBeFalsy();
+  });
+
+  it(`should return false if non numeric string`, () => {
+    expect(canBeCastAsNumberOrNull('9a')).toBeFalsy();
+  });
+
+  it(`should return false if non numeric string #2`, () => {
+    expect(canBeCastAsNumberOrNull('a9a')).toBeFalsy();
+  });
+
+  it(`should return true if float`, () => {
+    expect(canBeCastAsNumberOrNull(0.9)).toBeTruthy();
+  });
+
+  it(`should return true if float string`, () => {
+    expect(canBeCastAsNumberOrNull('0.9')).toBeTruthy();
+  });
+});
+
+describe('castAsNumberOrNull', () => {
+  it(`should cast null to null`, () => {
+    expect(castAsNumberOrNull(null)).toBe(null);
+  });
+
+  it(`should cast empty string to null`, () => {
+    expect(castAsNumberOrNull('')).toBe(null);
+  });
+
+  it(`should cast an integer to an integer`, () => {
+    expect(castAsNumberOrNull(9)).toBe(9);
+  });
+
+  it(`should cast an integer string to an integer`, () => {
+    expect(castAsNumberOrNull('9')).toBe(9);
+  });
+
+  it(`should throw if trying to cast a float string to an integer`, () => {
+    expect(castAsNumberOrNull('9.9')).toBe(9.9);
+  });
+
+  it(`should throw if trying to cast a non numeric string to an integer`, () => {
+    expect(() => castAsNumberOrNull('9.9a')).toThrow(Error);
+  });
+
+  it(`should throw if trying to cast an undefined to an integer`, () => {
+    expect(() => castAsNumberOrNull(undefined)).toThrow(Error);
+  });
+});

packages/twenty-front/src/utils/cast-as-number-or-null.ts

@@ -4,7 +4,7 @@ import { logError } from './logError';
 
 const DEBUG_MODE = false;
 
-export const canBeCastAsIntegerOrNull = (
+export const canBeCastAsNumberOrNull = (
   probableNumberOrNull: string | undefined | number | null,
 ): probableNumberOrNull is number | null => {
   if (probableNumberOrNull === undefined) {
@@ -16,7 +16,7 @@ export const canBeCastAsIntegerOrNull = (
   if (isNumber(probableNumberOrNull)) {
     if (DEBUG_MODE) logError('typeof probableNumberOrNull === "number"');
 
-    return Number.isInteger(probableNumberOrNull);
+    return true;
   }
 
   if (isNull(probableNumberOrNull)) {
@@ -39,8 +39,8 @@ export const canBeCastAsIntegerOrNull = (
 
       return false;
     }
-    if (Number.isInteger(stringAsNumber)) {
-      if (DEBUG_MODE) logError('Number.isInteger(stringAsNumber)');
+    if (isNumber(stringAsNumber)) {
+      if (DEBUG_MODE) logError('isNumber(stringAsNumber)');
 
       return true;
     }
@@ -49,10 +49,10 @@ export const canBeCastAsIntegerOrNull = (
   return false;
 };
 
-export const castAsIntegerOrNull = (
+export const castAsNumberOrNull = (
   probableNumberOrNull: string | undefined | number | null,
 ): number | null => {
-  if (canBeCastAsIntegerOrNull(probableNumberOrNull) === false) {
+  if (canBeCastAsNumberOrNull(probableNumberOrNull) === false) {
     throw new Error('Cannot cast to number or null');
   }
 

packages/twenty-front/src/utils/format/number.ts

@@ -1,2 +1,8 @@
-export const formatNumber = (value: number): string =>
-  value.toLocaleString('en-US');
+export const DEFAULT_DECIMAL_VALUE = 0;
+
+export const formatNumber = (value: number, decimals?: number): string => {
+  return value.toLocaleString('en-US', {
+    minimumFractionDigits: decimals ?? DEFAULT_DECIMAL_VALUE,
+    maximumFractionDigits: decimals ?? DEFAULT_DECIMAL_VALUE,
+  });
+};

packages/twenty-server/src/engine/metadata-modules/field-metadata/field-metadata-validation.service.ts

@@ -0,0 +1,48 @@
+import { Injectable } from '@nestjs/common';
+
+import { FieldMetadataSettings } from 'src/engine/metadata-modules/field-metadata/interfaces/field-metadata-settings.interface';
+
+import { FieldMetadataType } from 'src/engine/metadata-modules/field-metadata/field-metadata.entity';
+import {
+  FieldMetadataException,
+  FieldMetadataExceptionCode,
+} from 'src/engine/metadata-modules/field-metadata/field-metadata.exception';
+
+@Injectable()
+export class FieldMetadataValidationService<
+  T extends FieldMetadataType | 'default' = 'default',
+> {
+  constructor() {}
+
+  validateSettingsOrThrow({
+    fieldType,
+    settings,
+  }: {
+    fieldType: FieldMetadataType;
+    settings: FieldMetadataSettings<T>;
+  }) {
+    switch (fieldType) {
+      case FieldMetadataType.NUMBER:
+        this.validateNumberSettings(settings);
+        break;
+      default:
+        break;
+    }
+  }
+
+  private validateNumberSettings(settings: FieldMetadataSettings<T>) {
+    if ('decimals' in settings) {
+      const { decimals } = settings;
+
+      if (
+        decimals !== undefined &&
+        (decimals < 0 || !Number.isInteger(decimals))
+      ) {
+        throw new FieldMetadataException(
+          `Decimals value "${decimals}" must be a positive integer`,
+          FieldMetadataExceptionCode.INVALID_FIELD_INPUT,
+        );
+      }
+    }
+  }
+}

packages/twenty-server/src/engine/metadata-modules/field-metadata/field-metadata.module.ts

@@ -12,6 +12,7 @@ import { ActorModule } from 'src/engine/core-modules/actor/actor.module';
 import { WorkspaceAuthGuard } from 'src/engine/guards/workspace-auth.guard';
 import { DataSourceModule } from 'src/engine/metadata-modules/data-source/data-source.module';
 import { FieldMetadataDTO } from 'src/engine/metadata-modules/field-metadata/dtos/field-metadata.dto';
+import { FieldMetadataValidationService } from 'src/engine/metadata-modules/field-metadata/field-metadata-validation.service';
 import { FieldMetadataResolver } from 'src/engine/metadata-modules/field-metadata/field-metadata.resolver';
 import { FieldMetadataGraphqlApiExceptionInterceptor } from 'src/engine/metadata-modules/field-metadata/interceptors/field-metadata-graphql-api-exception.interceptor';
 import { IsFieldMetadataDefaultValue } from 'src/engine/metadata-modules/field-metadata/validators/is-field-metadata-default-value.validator';
@@ -44,7 +45,11 @@ import { UpdateFieldInput } from './dtos/update-field.input';
         TypeORMModule,
         ActorModule,
       ],
-      services: [IsFieldMetadataDefaultValue, FieldMetadataService],
+      services: [
+        IsFieldMetadataDefaultValue,
+        FieldMetadataService,
+        FieldMetadataValidationService,
+      ],
       resolvers: [
         {
           EntityClass: FieldMetadataEntity,

packages/twenty-server/src/engine/metadata-modules/field-metadata/field-metadata.service.ts

@@ -56,6 +56,7 @@ import { computeObjectTargetTable } from 'src/engine/utils/compute-object-target
 import { WorkspaceMigrationRunnerService } from 'src/engine/workspace-manager/workspace-migration-runner/workspace-migration-runner.service';
 import { ViewFieldWorkspaceEntity } from 'src/modules/view/standard-objects/view-field.workspace-entity';
 
+import { FieldMetadataValidationService } from './field-metadata-validation.service';
 import {
   FieldMetadataEntity,
   FieldMetadataType,
@@ -82,6 +83,7 @@ export class FieldMetadataService extends TypeOrmQueryService<FieldMetadataEntit
     private readonly typeORMService: TypeORMService,
     private readonly workspaceMetadataVersionService: WorkspaceMetadataVersionService,
     private readonly twentyORMGlobalManager: TwentyORMGlobalManager,
+    private readonly fieldMetadataValidationService: FieldMetadataValidationService,
   ) {
     super(fieldMetadataRepository);
   }
@@ -157,6 +159,7 @@ export class FieldMetadataService extends TypeOrmQueryService<FieldMetadataEntit
       }
 
       this.validateFieldMetadataInput<CreateFieldInput>(
+        fieldMetadataInput.type,
         fieldMetadataInput,
         objectMetadata,
       );
@@ -391,6 +394,7 @@ export class FieldMetadataService extends TypeOrmQueryService<FieldMetadataEntit
       }
 
       this.validateFieldMetadataInput<UpdateFieldInput>(
+        existingFieldMetadata.type,
         fieldMetadataInput,
         objectMetadata,
       );
@@ -707,7 +711,11 @@ export class FieldMetadataService extends TypeOrmQueryService<FieldMetadataEntit
 
   private validateFieldMetadataInput<
     T extends UpdateFieldInput | CreateFieldInput,
-  >(fieldMetadataInput: T, objectMetadata: ObjectMetadataEntity): T {
+  >(
+    fieldMetadataType: FieldMetadataType,
+    fieldMetadataInput: T,
+    objectMetadata: ObjectMetadataEntity,
+  ): T {
     if (fieldMetadataInput.name) {
       try {
         validateFieldNameValidityOrThrow(fieldMetadataInput.name);
@@ -748,6 +756,13 @@ export class FieldMetadataService extends TypeOrmQueryService<FieldMetadataEntit
       }
     }
 
+    if (fieldMetadataInput.settings) {
+      this.fieldMetadataValidationService.validateSettingsOrThrow({
+        fieldType: fieldMetadataType,
+        settings: fieldMetadataInput.settings,
+      });
+    }
+
     return fieldMetadataInput;
   }
 }

packages/twenty-server/src/engine/metadata-modules/field-metadata/interfaces/field-metadata-settings.interface.ts

@@ -12,6 +12,7 @@ type FieldMetadataDefaultSettings = {
 
 type FieldMetadataNumberSettings = {
   dataType: NumberDataType;
+  decimals?: number;
 };
 
 type FieldMetadataDateSettings = {