buttons and logic must be defined Sarveshgithub#11

README.md

@@ -2,7 +2,7 @@
 
 # Salesforce Lightning Data table (LWC Version) 
 
-![Image description](https://github.com/Sarveshgithub/sfdc-lwc-lightning-datatable/blob/master/lwc-datatable.PNG?raw=true)
+![Image description](https://user-images.githubusercontent.com/39730173/158386203-bca7099f-0070-48d2-8ec9-6936a68dd754.PNG)
 
 ## About
 
@@ -36,6 +36,7 @@ Design Attribute
 Enter Related field API Name | :x: | String | Enter related field api name | Example AccountId for contact when component is on account layout.
 Enter WHERE clause | :x: | String | provide aditional filters | Example `LastName like '%s' AND Account.Name like '%t'`
 | Show the number of record | :x: | Boolean | append the number of records in the title  |  checked(true) OR not checked(false) |
+| Buttons to display | :x: | String | buttons that we want to display  | new,delete-selected |
 
 ## Columns JSON Example
 ``` yaml 
@@ -61,53 +62,59 @@ Enter WHERE clause | :x: | String | provide aditional filters | Example `LastNam
         "type": "text"
     }]
 ```
-## Buttons configuration (for developers, accessible in the component and from parent component)
+## Buttons configuration
+
+### Buttons definition(javascript controller) :
+```
+const buttonsOfList = {
+    'new' : { label : "New", variant: "neutral", needSelectedRows: false }, 
+    'delete-everything' : {  label : "delete all", variant: "destructive", needSelectedRows: false },
+    'delete-selected' : { label : "delete selected", variant : "brand", needSelectedRows: true }
+};
+```
+### Default displayed buttons
+The "New" button is displayed by default, modify the method setDefaultListButtons to change default buttons.
 
-### Call apex or javascript method
-For a button that is going to call callApexFromButton, the properties must be :
-- callApexFromButton: true
 
-### Fire event to parent component
-For a button that is going to fire an event, the properties must be :
-- callApex: false
-- needSelectedRows : can be true if you need to send selected rows to parent component
+### Button logic definition (fire an event, call a method in the javascript controller)
+You can implement your own logic for your new buttons based on button key (new, delete-selected...).
 
-### Example 
-Javascript array (actionButtonsList property) :
 ```
-[  
-   { label : "delete all", variant: "destructive", needSelectedRows: true, callApex: true },
-   { label : "action button", variant : "brand", needSelectedRows: false, callApex: false },
-   { label : "another action button", variant : "brand", needSelectedRows: true, callApex: false }
-];
+callButtonAction(event) {
+    //call desired javacript method or apex call, or throw an event based on the button key(new, delete-selected...)
+    //if button has needSelectedRows set to true, have selected rows using this.selectedRows
+    const buttonLabel = event.target.dataset.name;
+
+    if(buttonLabel === 'new') {
+        this.newRecord();
+    } else if(buttonLabel === 'delete-selected') {
+        new customEvent('deleteselected', {detail : this.rows});
+    }
+    console.log('callButtonAction, button clicked has label : '+buttonLabel);
+}
 ```
-Parent component (**you don't need parent component, you can define default buttons using actionButtonsList**) :
+
+**From Parent component (for developers) :**
 ```
 //in template
 <c-lwc-related-list object-name="Contact"
         columns={columns}
+        title="contacts-from-parent-component"
         related-field-api="AccountId"
         is-counter-displayed=true
-        action-buttons-list={actions}
-        show-checkboxes=true
-        onaction2={helloWorld}
-        onaction3={helloWorld}
+        action-buttons-to-display='new,delete-selected'
+        ondeleteselected={helloWorld} >
 
+</c-lwc-related-list>
+```
+```
 //in js controller
 helloWorld(event) {
     console.log('hello world');
     console.log('event rows ', event.detail);
 }
 ```
 
-- The first button "delete all" is not going to send event to parent it will call the javascript method callApexFromButton you must 
-implement the desired javascript/apex call based on the button label.
-- The button "action button" fires the event action2
-- The button "another action button" fires the event action3
-
-The results should be :
-![Capture buttons](https://user-images.githubusercontent.com/39730173/158386203-bca7099f-0070-48d2-8ec9-6936a68dd754.PNG)
-
 ## Deploy
 Click Button to deploy source in Developer/Sandbox
 

force-app/main/default/lwc/lwcRelatedList/lwcRelatedList.html

@@ -1,39 +1,19 @@
 <template>
   <!-- Main content -->
   <lightning-card variant="Narrow" title={titleFormatted} icon-name={iconName}>
-    <!--default button create -->
-    <template if:false={actionButtonsListNotEmpty}>
-      <lightning-button label="New" title="Non-primary action" onclick={newRecord} class="slds-m-left_x-small"
-      slot="actions"></lightning-button>
-    </template>
-
-    <!-- custom buttons for list --> 
+    <!-- custom action buttons for list, by default new is displayed --> 
     <template if:true={actionButtonsListNotEmpty}>
       <template for:each={actionButtonsList} for:item="actionButton" for:index="index">
-          <lightning-button if:true={actionButton.callApex}
-                            key={actionButton.label} 
+          <lightning-button key={actionButton.label} 
                             label={actionButton.label} 
                             title={actionButton.label}
                             variant={actionButton.variant} 
-                            onclick={callApexFromButton}
-                            data-name={actionButton.label}
+                            onclick={callButtonAction}
+                            data-name={actionButton.uniqueName}
                             class="slds-m-left_x-small"
                             slot="actions"
                             >
           </lightning-button>
-
-          <lightning-button if:false={actionButton.callApex}
-                            data-index={index}
-                            key={actionButton.label} 
-                            label={actionButton.label} 
-                            title={actionButton.label}
-                            variant={actionButton.variant} 
-                            onclick={fireEventFromButton}
-                            class="slds-m-left_x-small"
-                            slot="actions"
-                            >
-          </lightning-button>
-
       </template>
     </template>
 
@@ -80,4 +60,4 @@
         onclick={lastPage} class="slds-m-left_xx-small slds-m-right_xx-small"></lightning-button>
     </div>
   </lightning-card>
-</template>
+</template>

force-app/main/default/lwc/lwcRelatedList/lwcRelatedList.js

@@ -16,6 +16,13 @@ const actions = [
   { label: "Edit", name: "edit" },
   { label: "Delete", name: "delete" }
 ];
+
+const buttonsOfList = {
+    'new' : { label : "New", variant: "neutral", needSelectedRows: false }, 
+    'delete-everything' : {  label : "delete all", variant: "destructive", needSelectedRows: false },
+    'delete-selected' : { label : "delete selected", variant : "brand", needSelectedRows: true }
+};
+
 export default class LightningDatatable extends NavigationMixin(
   LightningElement
 ) {
@@ -29,6 +36,7 @@ export default class LightningDatatable extends NavigationMixin(
   @api whereClause;
   @api limit = 10;
   @api isCounterDisplayed;
+  @api actionButtonsToDisplay;
   @api actionButtonsList; //buttons for the list
   @api showCheckboxes;
   // Private Property
@@ -44,6 +52,40 @@ export default class LightningDatatable extends NavigationMixin(
     if (this.columns != null && this.columns != undefined) {
       cols = JSON.parse(this.columns);
     }
+
+    //defining custom list buttons based on actionButtonsToDisplay(string seperated design property)
+    if(this.actionButtonsToDisplay && this.actionButtonsToDisplay != undefined ) {
+      let arrayOfButtonsKeys = this.actionButtonsToDisplay.replace(/\s/g, '').split(',');
+      let actionsButtons = [];
+
+      if(arrayOfButtonsKeys && arrayOfButtonsKeys.length > 0) {
+        arrayOfButtonsKeys.forEach(buttonKey => {
+          //checking if button key is empty or button not defined
+          if(buttonKey && buttonsOfList[buttonKey]) {
+            let button = buttonsOfList[buttonKey];
+            button.uniqueName = buttonKey;
+
+            actionsButtons.push(button );
+
+            //if one button needs selected rows then we show checkboxes
+            if(buttonsOfList[buttonKey].needSelectedRows ) {
+              this.showCheckboxes = true;
+            }
+          }
+        });
+
+        if(actionsButtons.length > 0) {
+          this.actionButtonsList = actionsButtons;
+        } else {
+          this.setDefaultListButtons();
+        }
+      } else {
+        this.setDefaultListButtons();
+      }
+    } else {
+      this.setDefaultListButtons();
+    }
+
     cols.push({
       type: "action",
       typeAttributes: { rowActions: actions }
@@ -56,6 +98,11 @@ export default class LightningDatatable extends NavigationMixin(
     this.fetchRecords();
   }
 
+  setDefaultListButtons() {
+    this.actionButtonsList = [];
+    this.actionButtonsList.push(buttonsOfList['new']);
+  }
+
   fetchRecords() {
     getRecords({ soql: this.soql, SObjectName: this.objectName, iconName: this.iconName })
       .then((data) => {
@@ -267,35 +314,20 @@ export default class LightningDatatable extends NavigationMixin(
     return (this.isCounterDisplayed) ? this.title + ` (${this.totalRows})` : this.title;
   }
 
-  callApexFromButton(event) {
-    //call desired apex method based on buttonLabel value
+  callButtonAction(event) {
+    //call desired javacript method or apex call, or throw an event based on the button key(new, delete-selected...)
     //if button has needSelectedRows set to true, have selected rows using this.selectedRows
     const buttonLabel = event.target.dataset.name;
-    console.log('callApexFromButton, button clicked has label : '+buttonLabel);
-  }
 
-  fireEventFromButton(event) {
-    event.preventDefault();
-    console.log('fireEventFromButton');
-    const buttonPos = Number(event.target.dataset.index) + 1;
-    const button = this.actionButtonsList[buttonPos-1];
-    let buttonEvent = null;
-
-    console.log('action'+buttonPos);
-
-    if(button.needSelectedRows && button.needSelectedRows === true) {
-      buttonEvent = new CustomEvent(
-        'action'+buttonPos, 
-        { detail  : JSON.stringify(this.selectedRows) }
-      );
-    } else {
-      buttonEvent = new CustomEvent('action'+buttonPos);
+    if(buttonLabel === 'new') {
+      this.newRecord();
+    } else if(buttonLabel === 'delete-selected') {
+        const eventDeleteSelected = new CustomEvent('deleteselected', {detail : JSON.stringify(this.selectedRows) });
+        this.dispatchEvent(eventDeleteSelected);
     }
-
-    // Dispatches the event.
-    this.dispatchEvent(buttonEvent);
+    console.log('callButtonAction, button clicked has label : '+buttonLabel);
   }
-
+  
   handleRowSelection(event){
     this.selectedRows = JSON.parse(JSON.stringify(event.detail.selectedRows) );
   }

force-app/main/default/lwc/lwcRelatedList/lwcRelatedList.js-meta.xml

@@ -17,6 +17,7 @@
       <property name="relatedFieldAPI" type="String" default="" label="Enter Related field API Name" />
       <property name="whereClause" type="String" default="" label="Enter WHERE clause" />
       <property name="isCounterDisplayed" type="Boolean" label="Show the number of record" />
+      <property name="actionButtonsToDisplay" type="String" label="Buttons to display" />
     </targetConfig>
   </targetConfigs>
 </LightningComponentBundle>