feat: add funda ingest and staging models

dbt/models/staging/schema.yml

@@ -1,12 +1,27 @@
 version: 2
 
 models:
-  - name: stg_example
+  - name: stg_funda_listings
     description: >
-      A placeholder staging model. Replace with your actual source tables.
+      Cleaned Funda listing details – one row per property.
     columns:
-      - name: id
-        description: Primary key.
+      - name: global_id
+        description: Funda internal listing ID.
         tests:
           - unique
           - not_null
+      - name: city
+        description: City name.
+      - name: price
+        description: Asking or rental price in euros.
+
+  - name: stg_funda_price_history
+    description: >
+      Historical price events per listing (asking prices, WOZ assessments, sales).
+    columns:
+      - name: global_id
+        description: Funda internal listing ID.
+        tests:
+          - not_null
+      - name: price
+        description: Price at this point in time.

dbt/models/staging/sources.yml

@@ -0,0 +1,51 @@
+version: 2
+
+sources:
+  - name: raw_funda
+    schema: raw_funda
+    description: >
+      Raw Funda real-estate data ingested by Dagster assets.
+    tables:
+      - name: search_results
+        description: Funda search results (broad overview of matching listings).
+        columns:
+          - name: global_id
+            description: Funda internal listing ID.
+          - name: title
+            description: Property address / title.
+          - name: city
+            description: City name.
+          - name: price
+            description: Asking or rental price in euros.
+          - name: ingested_at
+            description: Timestamp when the row was written.
+
+      - name: listing_details
+        description: >
+          Full listing details fetched per search result (50+ fields).
+        columns:
+          - name: global_id
+            description: Funda internal listing ID.
+          - name: tiny_id
+            description: Public ID used in Funda URLs.
+          - name: price
+            description: Asking or rental price in euros.
+          - name: status
+            description: Listing status (available or sold).
+          - name: ingested_at
+            description: Timestamp when the row was written.
+
+      - name: price_history
+        description: >
+          Historical price data per listing (asking prices, WOZ, sales).
+        columns:
+          - name: global_id
+            description: Funda internal listing ID.
+          - name: price
+            description: Price at this point in time.
+          - name: source
+            description: Price data source (Funda or WOZ).
+          - name: status
+            description: Price event type (asking_price, sold, or woz).
+          - name: ingested_at
+            description: Timestamp when the row was written.

dbt/models/staging/stg_example.sql

@@ -1,4 +0,0 @@
--- Placeholder staging model.
--- Replace with your actual source query using the source() macro.
-
-select 1 as id, 'example' as name

dbt/models/staging/stg_funda_listings.sql

@@ -0,0 +1,48 @@
+-- Staging model: one row per Funda listing with cleaned core fields.
+
+with source as (
+    select * from {{ source('raw_funda', 'listing_details') }}
+),
+
+staged as (
+    select
+        global_id,
+        tiny_id,
+        title,
+        city,
+        postcode,
+        province,
+        neighbourhood,
+        municipality,
+        price,
+        price_formatted,
+        status,
+        offering_type,
+        object_type,
+        house_type,
+        construction_type,
+        construction_year,
+        energy_label,
+        living_area,
+        plot_area,
+        bedrooms,
+        rooms,
+        publication_date,
+        latitude,
+        longitude,
+        has_garden,
+        has_balcony,
+        has_solar_panels,
+        has_heat_pump,
+        has_roof_terrace,
+        is_energy_efficient,
+        is_monument,
+        url,
+        photo_count,
+        views,
+        saves,
+        ingested_at
+    from source
+)
+
+select * from staged

dbt/models/staging/stg_funda_price_history.sql

@@ -0,0 +1,20 @@
+-- Staging model: one row per price-history event per listing.
+
+with source as (
+    select * from {{ source('raw_funda', 'price_history') }}
+),
+
+staged as (
+    select
+        global_id,
+        price,
+        human_price,
+        date            as price_date,
+        timestamp       as price_timestamp,
+        source          as price_source,
+        status          as price_status,
+        ingested_at
+    from source
+)
+
+select * from staged