feat: dashboard widgets (#3362)

* fix: created dashboard, widgets and dashboard widget model

* fix: new user home dashboard

* chore: recent projects list

* chore: recent collaborators

* chore: priority order change

* chore: payload changes

* chore: collaborator's active issue count

* chore: all dashboard widgets added with services and typs

* chore: centered metric for pie chart

* chore: widget filters

* chore: created issue filter

* fix: created and assigned issues payload change

* chore: created issue payload change

* fix: date filter change

* chore: implement filters

* fix: added expansion fields

* fix: changed issue structure with relation

* chore: new issues response

* fix: project member fix

* chore: updated issue_relation structure

* chore: code cleanup

* chore: update issues response and added empty states

* fix: button text wrap

* chore: update empty state messages

* fix: filters

* chore: update dark mode empty states

* build-error: Type check in the issue relation service

* fix: issues redirection

* fix: project empty state

* chore: project member active check

* chore: project member check in state and priority

* chore: remove console logs and replace harcoded values with constants

* fix: code refactoring

* fix: key name changed

* refactor: mapping through similar components using an array

* fix: build errors

---------

Co-authored-by: Aaryan Khandelwal <aaryankhandu123@gmail.com>
Co-authored-by: gurusainath <gurusainath007@gmail.com>

apiserver/plane/db/models/__init__.py

@@ -90,3 +90,5 @@ from .notification import Notification
 from .exporter import ExporterHistory
 
 from .webhook import Webhook, WebhookLog
+
+from .dashboard import Dashboard, DashboardWidget, Widget

apiserver/plane/db/models/dashboard.py

@@ -0,0 +1,89 @@
+import uuid
+
+# Django imports
+from django.db import models
+from django.conf import settings
+
+# Module imports
+from . import BaseModel
+from ..mixins import TimeAuditModel
+
+class Dashboard(BaseModel):
+    DASHBOARD_CHOICES = (
+        ("workspace", "Workspace"),
+        ("project", "Project"),
+        ("home", "Home"),
+        ("team", "Team"),
+        ("user", "User"),
+    )
+    name = models.CharField(max_length=255)
+    description_html = models.TextField(blank=True, default="<p></p>")
+    identifier = models.UUIDField(null=True)
+    owned_by = models.ForeignKey(
+        "db.User",
+        on_delete=models.CASCADE,
+        related_name="dashboards",
+    )
+    is_default = models.BooleanField(default=False)
+    type_identifier = models.CharField(
+        max_length=30,
+        choices=DASHBOARD_CHOICES,
+        verbose_name="Dashboard Type",
+        default="home",
+    )
+
+    def __str__(self):
+        """Return name of the dashboard"""
+        return f"{self.name}"
+
+    class Meta:
+        verbose_name = "Dashboard"
+        verbose_name_plural = "Dashboards"
+        db_table = "dashboards"
+        ordering = ("-created_at",)
+
+
+class Widget(TimeAuditModel):
+    id = models.UUIDField(
+        default=uuid.uuid4, unique=True, editable=False, db_index=True, primary_key=True
+    )
+    key = models.CharField(max_length=255)
+    filters = models.JSONField(default=dict)
+
+    def __str__(self):
+        """Return name of the widget"""
+        return f"{self.key}"
+
+    class Meta:
+        verbose_name = "Widget"
+        verbose_name_plural = "Widgets"
+        db_table = "widgets"
+        ordering = ("-created_at",)
+
+
+class DashboardWidget(BaseModel):
+    widget = models.ForeignKey(
+        Widget,
+        on_delete=models.CASCADE,
+        related_name="dashboard_widgets",
+    )
+    dashboard = models.ForeignKey(
+        Dashboard,
+        on_delete=models.CASCADE,
+        related_name="dashboard_widgets",
+    )
+    is_visible = models.BooleanField(default=True)
+    sort_order = models.FloatField(default=65535)
+    filters = models.JSONField(default=dict)
+    properties = models.JSONField(default=dict)
+
+    def __str__(self):
+        """Return name of the dashboard"""
+        return f"{self.dashboard.name} {self.widget.key}"
+
+    class Meta:
+        unique_together = ("widget", "dashboard")
+        verbose_name = "Dashboard Widget"
+        verbose_name_plural = "Dashboard Widgets"
+        db_table = "dashboard_widgets"
+        ordering = ("-created_at",)