Minor bugfixes

amd/src/studyplan-editor-components.js

@@ -1906,6 +1906,15 @@ export default {
                 slotkey(){
                     return `${this.type}'-'${this.line.id}-${this.slotindex}-${this.layer}`;
                 },
+                itemidx(){
+                    for(const ix in this.value){
+                        const itm = this.value[ix];
+                        if(itm.layer == this.layer){
+                            return ix;
+                        }
+                    }
+                    return null;
+                },
                 item(){
                     for(const ix in this.value){
                         const itm = this.value[ix];
@@ -2132,7 +2141,7 @@ export default {
                     :data="item" 
                     :type="makeType(item)" 
                     @cut="onCut"
-                        ><t-item v-model="item" :plan="plan" :page='page' :period='period' :maxspan='maxSpan()'></t-item
+                        ><t-item v-model="value[itemidx]" :plan="plan" :page='page' :period='period' :maxspan='maxSpan()'></t-item
                         ></drag
                 ><drop v-else
                     :class="'t-slot-drop '+type + (layer > 0?' secondary':' primary')"
@@ -2165,12 +2174,12 @@ export default {
                     ></template
                 ></drop>
                 <t-item-timing-checker hidden
-                    v-if="item && item.course"
+                    v-if="value && value[itemidx] && value[itemidx].course"
                     ref="timingChecker"
                     :maxspan="maxSpan()"
                     :page="page"
                     :period="period"
-                    v-model="item"
+                    v-model="value[itemidx]"
                     ></t-item-timing-checker>
             </div>
             `,