From 1b08f90d6c8911e1b2f171ff0319c687b7ca820a Mon Sep 17 00:00:00 2001
From: Philip Eisenlohr <eisenlohr@egr.msu.edu>
Date: Sun, 13 Feb 2022 23:54:16 -0500
Subject: [PATCH] allow constant (non-label) value in cm.from_table() keys

---
 python/damask/_configmaterial.py    | 22 +++++++++++++++++++---
 python/tests/test_ConfigMaterial.py | 12 ++++++++++++
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/python/damask/_configmaterial.py b/python/damask/_configmaterial.py
index 01d85f6a4..250b52e7e 100644
--- a/python/damask/_configmaterial.py
+++ b/python/damask/_configmaterial.py
@@ -178,8 +178,9 @@ class ConfigMaterial(Config):
         table : damask.Table
             Table that contains material information.
         **kwargs
-            Keyword arguments where the key is the name and the value specifies
-            the label of the data column in the table.
+            Keyword arguments where the key is the property name and
+            the value specifies either the label of the data column in the table
+            or a constant value.
 
         Returns
         -------
@@ -211,8 +212,23 @@ class ConfigMaterial(Config):
         homogenization: {}
         phase: {}
 
+        >>> cm.from_table(t,O='qu',phase='phase',homogenization='SX')
+        material:
+          - constituents:
+              - O: [0.19, 0.8, 0.24, -0.51]
+                v: 1.0
+                phase: Aluminum
+            homogenization: SX
+          - constituents:
+              - O: [0.8, 0.19, 0.24, -0.51]
+                v: 1.0
+                phase: Steel
+            homogenization: SX
+        homogenization: {}
+        phase: {}
+
         """
-        kwargs_ = {k:table.get(v) for k,v in kwargs.items()}
+        kwargs_ = {k:table.get(v) if v in table.labels else np.atleast_2d([v]*len(table)).T for k,v in kwargs.items()}
 
         _,idx = np.unique(np.hstack(list(kwargs_.values())),return_index=True,axis=0)
         idx = np.sort(idx)
diff --git a/python/tests/test_ConfigMaterial.py b/python/tests/test_ConfigMaterial.py
index a713b636f..b8b5df52a 100644
--- a/python/tests/test_ConfigMaterial.py
+++ b/python/tests/test_ConfigMaterial.py
@@ -96,6 +96,18 @@ class TestConfigMaterial:
         for i,m in enumerate(c['material']):
             assert m['homogenization'] == 1 and (m['constituents'][0]['O'] == [1,0,1,1]).all()
 
+    def test_from_table_with_constant(self):
+        N = np.random.randint(3,10)
+        a = np.vstack((np.hstack((np.arange(N),np.arange(N)[::-1])),
+                       np.ones(N*2),np.zeros(N*2),np.ones(N*2),np.ones(N*2),
+                       np.ones(N*2),
+                      )).T
+        t = Table(a,{'varying':1,'constant':4,'ones':1})
+        c = ConfigMaterial.from_table(t,**{'phase':'varying','O':'constant','homogenization':1})
+        assert len(c['material']) == N
+        for i,m in enumerate(c['material']):
+            assert m['homogenization'] == 1 and (m['constituents'][0]['O'] == [1,0,1,1]).all()
+
     @pytest.mark.parametrize('N,n,kw',[
                                         (1,1,{'phase':'Gold',
                                               'O':[1,0,0,0],