Fixed period overlapping

amd/src/studyplan-editor-components.js

@@ -1145,6 +1145,14 @@ export default {
                 'variant' : {
                     type: String,
                     default() { return "";},
+                },
+                'minstart' : {
+                    type: String,
+                    default() { return null;},
+                },
+                'maxend' : {
+                    type: String,
+                    default() { return null;},
                 }
             },
             data() {
@@ -1176,18 +1184,29 @@ export default {
                 editFinish(){
                     const self = this;
                     let args = { 'id': this.value.id };
-                    let method =  'local_treestudyplan_edit_period';
 
                     objCopy(args,this.editdata,PERIOD_EDITOR_FIELDS);
 
                     call([{
-                        methodname: method,
+                        methodname: 'local_treestudyplan_edit_period',
                         args: args
+                    }])[0].done(function(response){
+                        objCopy(self.value,response,PERIOD_EDITOR_FIELDS);
+                        self.$emit('input',self.value);
+                        self.$emit('edited',self.value);
+                    }).fail(notification.exception);
+                },
+                refresh(){
+                    const self = this;
+                    call([{
+                        methodname: 'local_treestudyplan_get_period',
+                        args: { 'id': this.value.id },
                     }])[0].done(function(response){
                         objCopy(self.value,response,PERIOD_EDITOR_FIELDS);
                         self.$emit('input',self.value);
                     }).fail(notification.exception);
                 },
+
             }
             ,
             template: 
@@ -1225,13 +1244,21 @@ export default {
                         <b-row>
                             <b-col cols="4">{{ text.studyplan_startdate}}</b-col>
                             <b-col cols="8">
-                                <b-form-datepicker v-model="editdata.startdate"></b-form-datepicker>
+                                <b-form-datepicker
+                                    v-model="editdata.startdate"
+                                    :min="(minstart ? minstart : '')"
+                                    :max="value.enddate"
+                                ></b-form-datepicker>
                             </b-col>
                         </b-row>
                         <b-row>
                             <b-col cols="4">{{ text.studyplan_enddate}}</b-col>
                             <b-col cols="8">
-                                <b-form-datepicker v-model="editdata.enddate" ></b-form-datepicker>
+                                <b-form-datepicker
+                                    v-model="editdata.enddate"
+                                    :min="value.startdate"
+                                    :max="(maxend ? maxend : '')"
+                                ></b-form-datepicker>
                             </b-col>
                         </b-row>
                     </b-container>
@@ -1537,7 +1564,17 @@ export default {
                     }
                     
                     return show;
+                },
+                periodEdited(pi) {
+                    const prev = this.$refs["periodeditor-" + (pi.period - 1)][0];
+                    if(prev) {
+                        prev.refresh();
                     }
+                    const next = this.$refs["periodeditor-" + (pi.period + 1)][0];
+                    if(next) {
+                        next.refresh();
+                    }
+                },
             }
             ,
             template: 
@@ -1623,7 +1660,13 @@ export default {
                             <s-studyline-header-period 
                                 v-if="index > 0"
                                 v-model="page.perioddesc[index-1]"
-                                ><t-period-edit v-model="page.perioddesc[index-1]"></t-period-edit
+                                ><t-period-edit
+                                    :ref="'periodeditor-'+index"
+                                    @edited="periodEdited"
+                                    v-model="page.perioddesc[index-1]"
+                                    :minstart="(index > 1) ? page.perioddesc[index-2].startdate : null"
+                                    :maxend="(index < page.periods) ? page.perioddesc[index].enddate : null"
+                                ></t-period-edit
                             ></s-studyline-header-period>
                             <div class="s-studyline-header-filter"></div>
                         </template>

classes/period.php

@@ -21,6 +21,9 @@
  */
 
 namespace local_treestudyplan;
+
+use DateInterval;
+
 defined('MOODLE_INTERNAL') || die();
 
 require_once($CFG->libdir.'/externallib.php');
@@ -221,8 +224,8 @@ class period {
         if ($this->r->enddate && strlen($this->r->enddate) > 0) {
             return new \DateTime($this->r->enddate);
         } else {
-            // Return a date 100 years into the future.
+            // Return a date 2 months into the future if not set.... Yes, it needs to be set.
-            return (new \DateTime($this->r->startdate))->add(new \DateInterval("P100Y"));
+            return (new \DateTime($this->r->startdate))->add(new \DateInterval("P2M"));
         }
     }
 
@@ -293,6 +296,11 @@ class period {
      */
     public function edit($fields) : self {
         global $DB;
+
+        $pages = self::find_for_page($this->page());
+        $prev = (count($pages) > 2 && $this->period() >= 1) ? $pages[$this->period() - 1] : null;
+        $next = (count($pages) > $this->period()) ? $pages[$this->period() + 1] : null;
+
         $editable = ['fullname', 'shortname', 'startdate', 'enddate'];
         $info = ['id' => $this->id, ];
         foreach ($editable as $f) {
@@ -301,8 +309,27 @@ class period {
             }
         }
         $DB->update_record(self::TABLE, $info);
-        // Reload record after edit.
+        // Reload record after edit and ensure end dates of previous period are adjusted if needed.
         $this->r = $DB->get_record(self::TABLE, ['id' => $this->id], "*", MUST_EXIST);
+
+        // Adjust end date of previous period if needed
+        if (isset($prev) && !empty($fields['startdate'])) {
+            $maxdate = $this->startdate()->sub(new DateInterval("P1D")); // Subtract 1 day, since periods include the end day.
+            $rqdate = $prev->enddate();
+            if ($maxdate < $rqdate) {
+                $prev->edit(["enddate" => $maxdate->format("Y-m-d")]);
+            }
+        }
+
+        // Adjust start date of previous period if needed
+        if (isset($next) && !empty($fields['enddate'])) {
+            $mindate = $this->enddate()->add(new DateInterval("P1D")); // Subtract 1 day, since periods include the end day.
+            $rqdate = $next->startdate();
+            if ($mindate > $rqdate) {
+                $next->edit(["startdate" => $mindate->format("Y-m-d")]);
+            }
+        }
+
         unset(self::$pagecache[$this->r->page_id]); // Invalidate the cache for this page.
         return $this;
     }

classes/studyplanservice.php

@@ -1448,6 +1448,34 @@ class studyplanservice extends \external_api {
      *                      *
      ************************/
 
+    /**
+     * Parameter description for webservice function get_period
+     */
+    public static function get_period_parameters() : \external_function_parameters {
+        return new \external_function_parameters( [
+            "id" => new \external_value(PARAM_INT, 'id of study item'),
+        ]);
+    }
+
+    /**
+     * Return value description for webservice function get_period
+     */
+    public static function get_period_returns() : \external_description {
+        return period::structure();
+    }
+
+    /**
+     * Get period information
+     * @param mixed $id Id of period to retrieve
+     * @return array
+     */
+    public static function get_period($id) {
+        $p = period::find_by_id($id);
+        // Public data - no rights check needed
+        \external_api::validate_context($p->page()->studyplan()->context());
+        return $p->model();
+    }
+
     /**
      * Parameter description for webservice function edit_period
      */
@@ -1489,7 +1517,6 @@ class studyplanservice extends \external_api {
         'enddate' => $enddate,
         ]);
         return $p->model();
-
     }
 
     /************************

db/services.php

@@ -484,6 +484,15 @@ $functions = [
         'capabilities'  => 'local/treestudyplan:editstudyplan',
         'loginrequired' => true,
     ],
+    'local_treestudyplan_get_period' => [         // Web service function name.
+        'classname'     => '\local_treestudyplan\studyplanservice',  // Class containing the external function.
+        'methodname'    => 'get_period',          // External function name.
+        'description'   => 'Get period name and timing',
+        'type'          => 'read',                  // Database rights of the web service function (read, write).
+        'ajax'          => true,
+        'capabilities'  => 'local/treestudyplan:viewstudyplan',
+        'loginrequired' => true,
+    ],
     'local_treestudyplan_edit_period' => [         // Web service function name.
         'classname'     => '\local_treestudyplan\studyplanservice',  // Class containing the external function.
         'methodname'    => 'edit_period',          // External function name.

version.php

@@ -22,7 +22,7 @@
 defined('MOODLE_INTERNAL') || die();
 
 $plugin->component = 'local_treestudyplan';  // Recommended since 2.0.2 (MDL-26035). Required since 3.0 (MDL-48494).
-$plugin->version = 2023083100;  // YYYYMMDDHH (year, month, day, iteration).
+$plugin->version = 2023090300;  // YYYYMMDDHH (year, month, day, iteration).
 $plugin->requires = 2021051700; // YYYYMMDDHH (This is the release version for Moodle 3.11).
 
 $plugin->release = "1.0.0";