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check no two controlnets have the same name
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@ -72,7 +72,7 @@ class ConditionEncoder(Chain):
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class Controlnet(Passthrough):
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structural_attrs = ["scale"]
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structural_attrs = ["scale", "name"]
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def __init__(
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self, name: str, scale: float = 1.0, device: Device | str | None = None, dtype: DType | None = None
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@ -84,6 +84,7 @@ class Controlnet(Passthrough):
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It has to use the same context as the UNet: `unet` and `sampling`.
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"""
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self.name = name
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self.scale = scale
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super().__init__(
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TimestepEncoder(context_key=f"timestep_embedding_{name}", device=device, dtype=dtype),
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@ -159,7 +160,10 @@ class SD1ControlnetAdapter(Chain, Adapter[SD1UNet]):
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def inject(self: "SD1ControlnetAdapter", parent: Chain | None = None) -> "SD1ControlnetAdapter":
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controlnet = self._controlnet[0]
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assert controlnet not in self.target, f"{controlnet} is already injected"
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target_controlnets = [x for x in self.target if isinstance(x, Controlnet)]
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assert controlnet not in target_controlnets, f"{controlnet} is already injected"
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for cn in target_controlnets:
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assert cn.name != self.name, f"Controlnet named {self.name} is already injected"
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self.target.insert(0, controlnet)
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return super().inject(parent)
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@ -83,3 +83,13 @@ def test_two_controlnets_eject_top_down(unet: SD1UNet) -> None:
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cn2.eject()
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assert unet.parent == original_parent
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assert len(list(unet.walk(Controlnet))) == 0
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@torch.no_grad()
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def test_two_controlnets_same_name(unet: SD1UNet) -> None:
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SD1ControlnetAdapter(unet, name="cnx").inject()
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cn2 = SD1ControlnetAdapter(unet, name="cnx")
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with pytest.raises(AssertionError) as exc:
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cn2.inject()
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assert "Controlnet named cnx is already injected" in str(exc.value)
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