feat: Add temperature ranges for extruder and bed temps (#5)

Store extruder and bed temperatures as min/max ranges instead of
single values for more accurate filament specifications.

Backend changes:
- Add 4 new columns: settings_extruder_temp_min/max, settings_bed_temp_min/max
- Keep old columns for backward compatibility (marked deprecated)
- Alembic migration copies existing values to both min and max
- Update Pydantic models and API endpoints

Frontend changes:
- Filament model updated with new fields
- Create form uses min/max input pairs with Space.Compact
- Import from external DB populates both min and max with same value
- Label template updated to show ranges: "ET: 190-220 °C"
- Template help includes new tags

Labels now display temperature ranges like "190-220°C" which is more
useful for printing than a single recommended value.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

client/public/locales/en/common.json

@@ -236,6 +236,8 @@
             "comment": "Comment",
             "settings_extruder_temp": "Extruder Temp",
             "settings_bed_temp": "Bed Temp",
+            "temp_min": "Min",
+            "temp_max": "Max",
             "color_hex": "Color",
             "single_color": "Single",
             "multi_color": "Multi",

client/src/pages/filaments/create.tsx

@@ -1,6 +1,6 @@
 import { Create, useForm, useSelect } from "@refinedev/antd";
 import { HttpError, IResourceComponentsProps, useInvalidate, useTranslate } from "@refinedev/core";
-import { AutoComplete, Button, ColorPicker, Divider, Form, Input, InputNumber, Radio, Select, Typography } from "antd";
+import { AutoComplete, Button, ColorPicker, Divider, Form, Input, InputNumber, Radio, Select, Space, Typography } from "antd";
 import { PlusOutlined } from "@ant-design/icons";
 import TextArea from "antd/es/input/TextArea";
 import dayjs from "dayjs";
@@ -126,8 +126,10 @@ export const FilamentCreate: React.FC<IResourceComponentsProps & CreateOrClonePr
       color_hex: filament.color_hex,
       multi_color_hexes: filament.color_hexes?.join(",") || undefined,
       multi_color_direction: filament.multi_color_direction,
-      settings_extruder_temp: filament.extruder_temp || undefined,
-      settings_bed_temp: filament.bed_temp || undefined,
+      settings_extruder_temp_min: filament.extruder_temp || undefined,
+      settings_extruder_temp_max: filament.extruder_temp || undefined,
+      settings_bed_temp_min: filament.bed_temp || undefined,
+      settings_bed_temp_max: filament.bed_temp || undefined,
     });
   };
 
@@ -376,31 +378,43 @@ export const FilamentCreate: React.FC<IResourceComponentsProps & CreateOrClonePr
         >
           <InputNumber addonAfter="g" precision={1} />
         </Form.Item>
-        <Form.Item
-          label={t("filament.fields.settings_extruder_temp")}
-          name={["settings_extruder_temp"]}
-          rules={[
-            {
-              required: false,
-              type: "number",
-              min: 0,
-            },
-          ]}
-        >
-          <InputNumber addonAfter="°C" precision={0} />
+        <Form.Item label={t("filament.fields.settings_extruder_temp")}>
+          <Space.Compact>
+            <Form.Item
+              name={["settings_extruder_temp_min"]}
+              noStyle
+              rules={[{ type: "number", min: 0 }]}
+            >
+              <InputNumber placeholder={t("filament.fields.temp_min")} addonAfter="°C" precision={0} style={{ width: 140 }} />
+            </Form.Item>
+            <span style={{ padding: "4px 8px", background: "#fafafa", border: "1px solid #d9d9d9", borderLeft: 0, borderRight: 0 }}>-</span>
+            <Form.Item
+              name={["settings_extruder_temp_max"]}
+              noStyle
+              rules={[{ type: "number", min: 0 }]}
+            >
+              <InputNumber placeholder={t("filament.fields.temp_max")} addonAfter="°C" precision={0} style={{ width: 140 }} />
+            </Form.Item>
+          </Space.Compact>
         </Form.Item>
-        <Form.Item
-          label={t("filament.fields.settings_bed_temp")}
-          name={["settings_bed_temp"]}
-          rules={[
-            {
-              required: false,
-              type: "number",
-              min: 0,
-            },
-          ]}
-        >
-          <InputNumber addonAfter="°C" precision={0} />
+        <Form.Item label={t("filament.fields.settings_bed_temp")}>
+          <Space.Compact>
+            <Form.Item
+              name={["settings_bed_temp_min"]}
+              noStyle
+              rules={[{ type: "number", min: 0 }]}
+            >
+              <InputNumber placeholder={t("filament.fields.temp_min")} addonAfter="°C" precision={0} style={{ width: 140 }} />
+            </Form.Item>
+            <span style={{ padding: "4px 8px", background: "#fafafa", border: "1px solid #d9d9d9", borderLeft: 0, borderRight: 0 }}>-</span>
+            <Form.Item
+              name={["settings_bed_temp_max"]}
+              noStyle
+              rules={[{ type: "number", min: 0 }]}
+            >
+              <InputNumber placeholder={t("filament.fields.temp_max")} addonAfter="°C" precision={0} style={{ width: 140 }} />
+            </Form.Item>
+          </Space.Compact>
         </Form.Item>
         <Form.Item
           label={t("filament.fields.article_number")}

client/src/pages/filaments/model.tsx

@@ -15,6 +15,10 @@ export interface IFilament {
   comment?: string;
   settings_extruder_temp?: number;
   settings_bed_temp?: number;
+  settings_extruder_temp_min?: number;
+  settings_extruder_temp_max?: number;
+  settings_bed_temp_min?: number;
+  settings_bed_temp_max?: number;
   color_hex?: string;
   multi_color_hexes?: string;
   multi_color_direction?: string;

client/src/pages/printing/spoolQrCodePrintingDialog.tsx

@@ -157,8 +157,8 @@ const SpoolQRCodePrintingDialog: React.FC<SpoolQRCodePrintingDialog> = ({ spoolI
     `**{filament.vendor.name} - {filament.name}
 #{id} - {filament.material}**
 Spool Weight: {filament.spool_weight} g
-{ET: {filament.settings_extruder_temp} °C}
-{BT: {filament.settings_bed_temp} °C}
+{ET: {filament.settings_extruder_temp_min}-{filament.settings_extruder_temp_max} °C}
+{BT: {filament.settings_bed_temp_min}-{filament.settings_bed_temp_max} °C}
 {Lot Nr: {lot_nr}}
 {{comment}}
 {filament.comment}
@@ -201,6 +201,10 @@ Spool Weight: {filament.spool_weight} g
     { tag: "filament.comment" },
     { tag: "filament.settings_extruder_temp" },
     { tag: "filament.settings_bed_temp" },
+    { tag: "filament.settings_extruder_temp_min" },
+    { tag: "filament.settings_extruder_temp_max" },
+    { tag: "filament.settings_bed_temp_min" },
+    { tag: "filament.settings_bed_temp_max" },
     { tag: "filament.color_hex" },
     { tag: "filament.multi_color_hexes" },
     { tag: "filament.multi_color_direction" },

migrations/versions/2025_01_15_0200-a1b2c3d4e5f6_add_temperature_ranges.py

@@ -0,0 +1,56 @@
+"""add_temperature_ranges.
+
+Revision ID: a1b2c3d4e5f6
+Revises: 415a8f855e14
+Create Date: 2025-01-15 02:00:00.000000
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "a1b2c3d4e5f6"
+down_revision = "415a8f855e14"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    """Add temperature range columns and migrate existing data."""
+    # Add new columns for temperature ranges
+    op.add_column("filament", sa.Column("settings_extruder_temp_min", sa.Integer(), nullable=True))
+    op.add_column("filament", sa.Column("settings_extruder_temp_max", sa.Integer(), nullable=True))
+    op.add_column("filament", sa.Column("settings_bed_temp_min", sa.Integer(), nullable=True))
+    op.add_column("filament", sa.Column("settings_bed_temp_max", sa.Integer(), nullable=True))
+
+    # Migrate existing single temp values to both min and max
+    # This preserves the existing data while enabling the new range functionality
+    connection = op.get_bind()
+    connection.execute(
+        sa.text(
+            """
+            UPDATE filament
+            SET settings_extruder_temp_min = settings_extruder_temp,
+                settings_extruder_temp_max = settings_extruder_temp
+            WHERE settings_extruder_temp IS NOT NULL
+            """
+        )
+    )
+    connection.execute(
+        sa.text(
+            """
+            UPDATE filament
+            SET settings_bed_temp_min = settings_bed_temp,
+                settings_bed_temp_max = settings_bed_temp
+            WHERE settings_bed_temp IS NOT NULL
+            """
+        )
+    )
+
+
+def downgrade() -> None:
+    """Remove temperature range columns."""
+    op.drop_column("filament", "settings_bed_temp_max")
+    op.drop_column("filament", "settings_bed_temp_min")
+    op.drop_column("filament", "settings_extruder_temp_max")
+    op.drop_column("filament", "settings_extruder_temp_min")

spoolman/api/v1/filament.py

@@ -75,15 +75,39 @@ class FilamentParameters(BaseModel):
     settings_extruder_temp: Optional[int] = Field(
         None,
         ge=0,
-        description="Overridden extruder temperature, in °C.",
+        description="Overridden extruder temperature, in °C. Deprecated: use settings_extruder_temp_min/max.",
         examples=[210],
     )
     settings_bed_temp: Optional[int] = Field(
         None,
         ge=0,
-        description="Overridden bed temperature, in °C.",
+        description="Overridden bed temperature, in °C. Deprecated: use settings_bed_temp_min/max.",
         examples=[60],
     )
+    settings_extruder_temp_min: Optional[int] = Field(
+        None,
+        ge=0,
+        description="Minimum extruder temperature, in °C.",
+        examples=[190],
+    )
+    settings_extruder_temp_max: Optional[int] = Field(
+        None,
+        ge=0,
+        description="Maximum extruder temperature, in °C.",
+        examples=[220],
+    )
+    settings_bed_temp_min: Optional[int] = Field(
+        None,
+        ge=0,
+        description="Minimum bed temperature, in °C.",
+        examples=[50],
+    )
+    settings_bed_temp_max: Optional[int] = Field(
+        None,
+        ge=0,
+        description="Maximum bed temperature, in °C.",
+        examples=[70],
+    )
     color_hex: Optional[str] = Field(
         None,
         description=(
@@ -454,6 +478,10 @@ async def create(  # noqa: ANN201
         comment=body.comment,
         settings_extruder_temp=body.settings_extruder_temp,
         settings_bed_temp=body.settings_bed_temp,
+        settings_extruder_temp_min=body.settings_extruder_temp_min,
+        settings_extruder_temp_max=body.settings_extruder_temp_max,
+        settings_bed_temp_min=body.settings_bed_temp_min,
+        settings_bed_temp_max=body.settings_bed_temp_max,
         color_hex=body.color_hex,
         multi_color_hexes=body.multi_color_hexes,
         multi_color_direction=body.multi_color_direction,

spoolman/api/v1/models.py

@@ -149,15 +149,39 @@ class Filament(BaseModel):
     settings_extruder_temp: Optional[int] = Field(
         None,
         ge=0,
-        description="Overridden extruder temperature, in °C.",
+        description="Overridden extruder temperature, in °C. Deprecated: use settings_extruder_temp_min/max.",
         examples=[210],
     )
     settings_bed_temp: Optional[int] = Field(
         None,
         ge=0,
-        description="Overridden bed temperature, in °C.",
+        description="Overridden bed temperature, in °C. Deprecated: use settings_bed_temp_min/max.",
         examples=[60],
     )
+    settings_extruder_temp_min: Optional[int] = Field(
+        None,
+        ge=0,
+        description="Minimum extruder temperature, in °C.",
+        examples=[190],
+    )
+    settings_extruder_temp_max: Optional[int] = Field(
+        None,
+        ge=0,
+        description="Maximum extruder temperature, in °C.",
+        examples=[220],
+    )
+    settings_bed_temp_min: Optional[int] = Field(
+        None,
+        ge=0,
+        description="Minimum bed temperature, in °C.",
+        examples=[50],
+    )
+    settings_bed_temp_max: Optional[int] = Field(
+        None,
+        ge=0,
+        description="Maximum bed temperature, in °C.",
+        examples=[70],
+    )
     color_hex: Optional[str] = Field(
         None,
         min_length=6,
@@ -216,6 +240,10 @@ class Filament(BaseModel):
             comment=item.comment,
             settings_extruder_temp=item.settings_extruder_temp,
             settings_bed_temp=item.settings_bed_temp,
+            settings_extruder_temp_min=item.settings_extruder_temp_min,
+            settings_extruder_temp_max=item.settings_extruder_temp_max,
+            settings_bed_temp_min=item.settings_bed_temp_min,
+            settings_bed_temp_max=item.settings_bed_temp_max,
             color_hex=item.color_hex,
             multi_color_hexes=item.multi_color_hexes,
             multi_color_direction=(

spoolman/database/filament.py

@@ -41,6 +41,10 @@ async def create(
     comment: Optional[str] = None,
     settings_extruder_temp: Optional[int] = None,
     settings_bed_temp: Optional[int] = None,
+    settings_extruder_temp_min: Optional[int] = None,
+    settings_extruder_temp_max: Optional[int] = None,
+    settings_bed_temp_min: Optional[int] = None,
+    settings_bed_temp_max: Optional[int] = None,
     color_hex: Optional[str] = None,
     multi_color_hexes: Optional[str] = None,
     multi_color_direction: Optional[MultiColorDirection] = None,
@@ -69,6 +73,10 @@ async def create(
         comment=comment,
         settings_extruder_temp=settings_extruder_temp,
         settings_bed_temp=settings_bed_temp,
+        settings_extruder_temp_min=settings_extruder_temp_min,
+        settings_extruder_temp_max=settings_extruder_temp_max,
+        settings_bed_temp_min=settings_bed_temp_min,
+        settings_bed_temp_max=settings_bed_temp_max,
         color_hex=color_hex,
         multi_color_hexes=multi_color_hexes,
         multi_color_direction=multi_color_direction.value if multi_color_direction is not None else None,

spoolman/database/models.py

@@ -46,8 +46,12 @@ class Filament(Base):
     spool_weight: Mapped[Optional[float]] = mapped_column(comment="The weight of an empty spool.")
     article_number: Mapped[Optional[str]] = mapped_column(String(64))
     comment: Mapped[Optional[str]] = mapped_column(String(1024))
-    settings_extruder_temp: Mapped[Optional[int]] = mapped_column(comment="Overridden extruder temperature.")
-    settings_bed_temp: Mapped[Optional[int]] = mapped_column(comment="Overridden bed temperature.")
+    settings_extruder_temp: Mapped[Optional[int]] = mapped_column(comment="Overridden extruder temperature (deprecated, use min/max).")
+    settings_bed_temp: Mapped[Optional[int]] = mapped_column(comment="Overridden bed temperature (deprecated, use min/max).")
+    settings_extruder_temp_min: Mapped[Optional[int]] = mapped_column(comment="Minimum extruder temperature.")
+    settings_extruder_temp_max: Mapped[Optional[int]] = mapped_column(comment="Maximum extruder temperature.")
+    settings_bed_temp_min: Mapped[Optional[int]] = mapped_column(comment="Minimum bed temperature.")
+    settings_bed_temp_max: Mapped[Optional[int]] = mapped_column(comment="Maximum bed temperature.")
     color_hex: Mapped[Optional[str]] = mapped_column(String(8))
     multi_color_hexes: Mapped[Optional[str]] = mapped_column(String(128))
     multi_color_direction: Mapped[Optional[str]] = mapped_column(String(16))