adding a dim_date table and tests

models/marts/dim_date.sql

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+{{
+    config(
+        materialized = "table"
+    )
+}}
+
+## macro to generate the date_spine with columns already filled in. This model is intended to servce as a dim model providing date information which can then be joined to booking info where needed ##
+
+with date_spine as (
+
+    {{ dbt_date.get_date_dimension("2023-01-01", "2050-12-31") }}
+
+)
+
+select
+    date_day,
+    day_of_week,
+    day_of_week_name,
+        case 
+        when day_of_week in (1, 7) then true
+        else false
+    end as is_weekend,
+    day_of_month,
+    day_of_year,
+    week_start_date,
+    week_end_date,
+    week_of_year,
+    month_name,
+    month_of_year,
+    month_start_date,
+    month_end_date, 
+    quarter_of_year,
+    quarter_start_date,
+    quarter_end_date,
+    year_number,
+    year_start_date,
+    year_end_date
+
+
+from date_spine
+

models/marts/dim_date.yml

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+version: 2
+
+models:
+  - name: dim_date
+    description: Date dimension table with one row per day and useful calendar attributes.
+
+    columns:
+      - name: date_day
+        description: The calendar date.
+        tests:
+          - not_null
+          - unique
+
+      - name: day_of_week
+        description: Day of week number where 1 = Sunday and 7 = Saturday.
+        tests:
+          - not_null
+          - accepted_values:
+              values: [1, 2, 3, 4, 5, 6, 7]
+              quote: false
+
+      - name: day_of_week_name
+        description: Name of the day of the week.
+        tests:
+          - not_null
+          - accepted_values:
+              values: ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']
+
+      - name: is_weekend
+        description: True when the date falls on Saturday or Sunday.
+        tests:
+          - not_null
+          - accepted_values:
+              values: [True, False]
+              quote: false
+
+      - name: day_of_month
+        description: Day number within the month.
+        tests:
+          - not_null
+
+      - name: day_of_year
+        description: Day number within the year.
+        tests:
+          - not_null
+
+      - name: week_start_date
+        description: Start date of the week.
+        tests:
+          - not_null
+
+      - name: week_end_date
+        description: End date of the week.
+        tests:
+          - not_null
+
+      - name: week_of_year
+        description: Week number within the year.
+        tests:
+          - not_null
+
+      - name: month_name
+        description: Name of the month.
+        tests:
+          - not_null
+          - accepted_values:
+              values: ['January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December']
+
+      - name: month_of_year
+        description: Month number within the year.
+        tests:
+          - not_null
+          - accepted_values:
+              values: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
+              quote: false
+
+      - name: month_start_date
+        description: First date of the month.
+        tests:
+          - not_null
+
+      - name: month_end_date
+        description: Last date of the month.
+        tests:
+          - not_null
+
+      - name: quarter_of_year
+        description: Quarter number within the year.
+        tests:
+          - not_null
+          - accepted_values:
+              values: [1, 2, 3, 4]
+              quote: false
+
+      - name: quarter_start_date
+        description: First date of the quarter.
+        tests:
+          - not_null
+
+      - name: quarter_end_date
+        description: Last date of the quarter.
+        tests:
+          - not_null
+
+      - name: year_number
+        description: Calendar year.
+        tests:
+          - not_null
+
+      - name: year_start_date
+        description: First date of the year.
+        tests:
+          - not_null
+
+      - name: year_end_date
+        description: Last date of the year.
+        tests:
+          - not_null