feat: form validation link file

ui/src/components/FormValidation.vue

@@ -0,0 +1,46 @@
+<template>
+  <div :class="isValidated && validationCondition ? 'invalid-field' : ''" class="p-1">
+    <slot></slot>
+    <div v-if="isValidated && validationCondition" class="feedback">
+      {{  invalidMessage }}
+    </div>
+  </div>
+</template>
+
+<script lang="ts">
+import { defineComponent } from "vue";
+
+export default defineComponent({
+  name: "FormValidation",
+  props: {
+    isValidated: {
+      type: Boolean,
+      default: false
+    },
+    validationCondition: {
+      type: Boolean,
+      required: true
+    },
+    invalidMessage: {
+      type: String,
+      required: true
+    }
+  }
+});
+</script>
+
+<style scoped>
+.invalid-field {
+  border: 1px;
+  border-color: rgb(220, 53, 69);
+  border-style: solid;
+  border-radius: 10px;
+}
+
+.feedback {
+  color:  rgb(220, 53, 69);
+  font-style: italic;
+  font-size: 0.9rem;
+}
+
+</style>

ui/src/components/ViewEditor.vue

@@ -16,11 +16,12 @@
                 disabled
                 v-model="srcProject"
               />
-              <Dropdown
-                v-else
+              <FormValidation v-else :isValidated="formValidated" invalidMessage="Please select a source project to link from " :validationCondition="isEmpty(srcProject)">
+                <Dropdown
                 :options="projects.map((project) => project.name)"
                 @update="updateSrcProject"
-              ></Dropdown>
+                ></Dropdown>
+              </FormValidation>
             </div>
           </div>
           <div class="row mb-3">
@@ -35,11 +36,12 @@
                 disabled
                 v-model="srcFolder"
               />
-              <Dropdown
-                v-else
-                :options="Object.keys(projectData)"
-                @update="updateSrcFolder"
-              ></Dropdown>
+              <FormValidation v-else :isValidated="formValidated" invalidMessage="Please select a source folder to link from " :validationCondition="isEmpty(srcFolder)">
+                <Dropdown
+                  :options="Object.keys(projectData)"
+                  @update="updateSrcFolder"
+                ></Dropdown>
+              </FormValidation>
             </div>
           </div>
           <div class="row mb-3">
@@ -54,22 +56,29 @@
                 disabled
                 v-model="srcTable"
               />
-              <Dropdown
-                v-else
-                :options="getTablesFromListOfFiles(projectData[srcFolder])"
-                @update="updateSrcTable"
-              ></Dropdown>
+              <FormValidation v-else :isValidated="formValidated" invalidMessage="Please select a source table to link from" :validationCondition="isEmpty(srcTable)">
+                <Dropdown
+                  :options="getTablesFromListOfFiles(projectData[srcFolder])"
+                  @update="updateSrcTable"
+                ></Dropdown>
+              </FormValidation>
             </div>
           </div>
         </form>
       </div>
       <div class="row">
         <div class="col-12" v-if="variables.length > 0">
-          <VariableSelector
-            :variables="variables"
-            :preselectedVariables="preselectedVariables"
-            ref="variableSelector"
-          />
+          <FormValidation
+          class="p-3"
+          :isValidated="formValidated" 
+          invalidMessage="Please select at least one variable" 
+          :validationCondition="isEmpty(getSelectedVariables())">
+            <VariableSelector
+              :variables="variables"
+              :preselectedVariables="preselectedVariables"
+              ref="variableSelector"
+            />
+          </FormValidation>
         </div>
       </div>
       <div class="row mt-3">
@@ -90,59 +99,58 @@
                   disabled
                   v-model="vwProject"
                 />
-                <Dropdown
-                  v-else
-                  :options="projects.map((project) => project.name)"
-                  @update="updateVwProject"
-                ></Dropdown>
+                <FormValidation v-else :isValidated="formValidated" invalidMessage="Please select a project name" :validationCondition="isEmpty(vwProject)">
+                  <Dropdown
+                    :options="projects.map((project) => project.name)"
+                    @update="updateVwProject"
+                    required
+                  ></Dropdown>
+                </FormValidation>
               </div>
             </div>
             <div class="row mb-3">
               <label for="inputViewFolder" class="col-sm-3 col-form-label">
                 Folder:
               </label>
               <div class="col-sm-9">
-                <input
-                  type="string"
-                  class="form-control"
-                  :disabled="viewFolder !== undefined"
-                  v-model="vwFolder"
-                />
+                <FormValidation :isValidated="formValidated" invalidMessage="Please enter a folder name" :validationCondition="isEmpty(vwFolder)">
+                  <input
+                    type="string"
+                    class="form-control"
+                    :disabled="viewFolder !== undefined"
+                    v-model="vwFolder"
+                    required
+                  />
+                </FormValidation>
               </div>
             </div>
             <div class="row mb-3">
               <label for="inputViewTable" class="col-sm-3 col-form-label">
                 Table:
               </label>
               <div class="col-sm-9">
-                <input
-                  type="string"
-                  class="form-control"
-                  :disabled="isEditMode"
-                  v-model="vwTable"
-                />
+                <FormValidation :isValidated="formValidated" invalidMessage="Please enter a table name" :validationCondition="isEmpty(vwTable)">
+                  <input
+                    type="string"
+                    class="form-control"
+                    :disabled="isEditMode"
+                    v-model="vwTable"
+                  />
+                </FormValidation>
               </div>
             </div>
+            <div class="d-grid gap-2 d-md-flex justify-content-md-end">
+              <button
+                class="btn btn-primary"
+                type="submit"
+                @click.prevent="saveIfValid(allFileInformationProvided, getSelectedVariables())"
+              >
+                <i class="bi bi-floppy-fill"></i> Save
+              </button>
+            </div>
           </form>
         </div>
       </div>
-      <div class="d-grid gap-2 d-md-flex justify-content-md-end">
-        <button
-          class="btn btn-primary"
-          type="button"
-          @click="
-            onSave(
-              srcProject,
-              sourceObject,
-              vwProject,
-              linkedObject,
-              ($refs.variableSelector as any).selectedVariables
-            )
-          "
-        >
-          <i class="bi bi-floppy-fill"></i> Save
-        </button>
-      </div>
     </div>
   </div>
 </template>
@@ -151,18 +159,21 @@ import { getProjects, getTableVariables, getProject } from "@/api/api";
 import {
   getRestructuredProject,
   getTablesFromListOfFiles,
+  isEmpty,
 } from "@/helpers/utils";
 import { Project } from "@/types/api";
 import { StringArray, ViewEditorData } from "@/types/types";
 import { PropType, Ref, defineComponent, onMounted, ref } from "vue";
 import VariableSelector from "@/components/VariableSelector.vue";
 import Dropdown from "@/components/Dropdown.vue";
+import FormValidation from "@/components/FormValidation.vue";
 
 export default defineComponent({
   name: "ViewEditor",
   components: {
     VariableSelector,
     Dropdown,
+    FormValidation
   },
   props: {
     sourceFolder: String,
@@ -203,12 +214,9 @@ export default defineComponent({
 
     const isSrcTableSet = () => {
       return (
-        props.sourceTable !== "" &&
-        props.sourceFolder !== "" &&
-        props.sourceProject !== "" &&
-        props.sourceTable !== undefined &&
-        props.sourceFolder !== undefined &&
-        props.sourceProject !== undefined
+        !isEmpty(props.sourceTable) &&
+        !isEmpty(props.sourceFolder) &&
+        !isEmpty(props.sourceProject)
       );
     };
     const fetchVariables = async () => {
@@ -235,6 +243,7 @@ export default defineComponent({
   data(): ViewEditorData {
     return {
       projectData: {},
+      formValidated: false,
       vwTable: this.viewTable ? this.viewTable : "",
       vwProject: this.viewProject ? this.viewProject : "",
       vwFolder: this.viewFolder ? this.viewFolder : "",
@@ -245,6 +254,7 @@ export default defineComponent({
   },
   methods: {
     getTablesFromListOfFiles,
+    isEmpty,
     async getProjectContent(project: string) {
       await getProject(project)
         .then((data) => {
@@ -257,7 +267,6 @@ export default defineComponent({
         });
     },
     async getVariables(project: string, folder: string, file: string) {
-      console.log(project, folder, file);
       await getTableVariables(project, folder + "%2F" + file)
         .then((response) => {
           this.variables = response;
@@ -269,17 +278,36 @@ export default defineComponent({
         });
     },
     updateSrcProject(event: Event) {
+      this.formValidated = false;
       this.srcProject = event.toString();
     },
     updateVwProject(event: Event) {
       this.vwProject = event.toString();
     },
     updateSrcFolder(event: Event) {
+      this.formValidated = false;
       this.srcFolder = event.toString();
     },
     updateSrcTable(event: Event) {
+      this.formValidated = false;
       this.srcTable = event.toString();
     },
+    getSelectedVariables() {
+      return this.$refs.variableSelector && (this.$refs.variableSelector as any).selectedVariables ? (this.$refs.variableSelector as any).selectedVariables : [];
+    },
+    saveIfValid(fileInfoSet: boolean, selectedVariables: StringArray) {
+      if(fileInfoSet && !isEmpty(selectedVariables)){
+        this.onSave(
+                    this.srcProject,
+                    this.sourceObject,
+                    this.vwProject,
+                    this.linkedObject,
+                    selectedVariables
+                  )
+      } else {
+        this.formValidated = true;
+      }
+    }
   },
   watch: {
     srcProject() {
@@ -294,6 +322,16 @@ export default defineComponent({
     },
   },
   computed: {
+    allFileInformationProvided(): boolean {
+      return (
+        !isEmpty(this.vwTable) &&
+        !isEmpty(this.vwFolder) &&
+        !isEmpty(this.vwProject) &&
+        !isEmpty(this.srcProject) &&
+        !isEmpty(this.srcFolder) &&
+        !isEmpty(this.srcTable));
+
+    },
     linkedObject(): string {
       return `${this.vwFolder}/${this.vwTable}`;
     },
@@ -303,15 +341,15 @@ export default defineComponent({
     isEditMode(): boolean {
       // when all items are preselected, we are in edit mode
       return (
-        this.sourceFolder !== undefined &&
-        this.sourceProject !== undefined &&
-        this.sourceTable !== undefined &&
-        this.viewFolder !== undefined &&
-        this.viewProject !== undefined &&
-        this.viewTable !== undefined &&
-        this.preselectedVariables.length > 0
+        !isEmpty(this.sourceFolder) &&
+        !isEmpty(this.sourceProject) &&
+        !isEmpty(this.sourceTable) &&
+        !isEmpty(this.viewFolder) &&
+        !isEmpty(this.viewProject) &&
+        !isEmpty(this.viewTable) &&
+        !isEmpty(this.preselectedVariables)
       );
     },
   },
 });
-</script>
+</script>

ui/src/helpers/utils.ts

@@ -219,6 +219,21 @@ export function diskSpaceBelowThreshold(diskSpace: number): boolean {
   return diskSpace < 2147483648;
 }
 
+export function isEmpty(variable: any): boolean {
+  // function will return true if empty string, empty object or empty array, else false
+  if (variable === undefined || variable === null || variable === '') {
+    return true;
+  } else if(typeof(variable) === 'object') {
+    if (Array.isArray(variable)) {
+      return variable.length === 0;
+    } else {
+      return isEmptyObject(variable);
+    }
+  } else {
+    return false;
+  }
+}
+
 /**
  * Convert given bytes to 2 digits precision round exponent version string.
  * @param bytes number

ui/src/types/types.d.ts

@@ -1,3 +1,4 @@
+
 import { Project, User } from "./api";
 
 export type StringObject = Record<string, string | Array<string>>;
@@ -128,4 +129,5 @@ export type ViewEditorData = {
   srcTable: string;
   srcProject: string;
   srcFolder: string;
+  formValidated: boolean;
 };