update

etc.jl

@@ -109,3 +109,92 @@ end
 
 
 
+
+
+function generate_wine_retail_sql(conditions::Dict{String, Any})::String
+    # 1. Base SQL structure
+    base_query = """
+SELECT
+  w.winery,
+  w.wine_name,
+  w.wine_id,
+  w.vintage,
+  w.region,
+  w.country,
+  w.wine_type,
+  w.grape,
+  w.serving_temperature,
+  w.sweetness,
+  w.intensity,
+  w.tannin,
+  w.acidity,
+  w.tasting_notes,
+  rw.price,
+  rw.currency,
+  w.image_url,
+  NULL AS retailer_name,
+  rw.retailer_id
+FROM wine AS w
+JOIN retailer_wine AS rw
+  ON w.wine_id = rw.wine_id
+"""
+
+    # 2. Dynamic WHERE Clause Builder
+    where_clauses = String[]
+
+    # Iterate over each table condition provided
+    for (table_name, table_conditions) in conditions
+        
+        # Determine table alias
+        alias = if table_name == "wine"
+            "w"
+        elseif table_name == "retailer_wine"
+            "rw"
+        else
+            continue # Skip unsupported tables
+        end
+        
+        # Process condition dictionaries
+        if isa(table_conditions, Dict) && !isempty(table_conditions)
+            
+            for (column_name, filter_details) in table_conditions
+                
+                if isa(filter_details, Dict) && haskey(filter_details, "operator")
+                    op = filter_details["operator"]
+                    raw_val = filter_details["value"]
+                    
+                    # --- Value Type Handling ---
+                    # Use tryparse instead of try/catch for cleaner, faster parsing
+                    final_val = raw_val
+                    
+                    if op in ("=", "<", ">", "<=", ">=")
+                        str_val = string(raw_val)
+                        num_val = tryparse(Float64, str_val)
+                        
+                        if !isnothing(num_val)
+                            final_val = isinteger(num_val) ? round(Int, num_val) : num_val
+                        end
+                    end
+                    
+                    # --- SQL Formatting ---
+                    if isa(final_val, Number)
+                        clause = "$(alias).$(column_name) $(op) $(final_val)"
+                    else
+                        # Escape single quotes within string values
+                        escaped_val = replace(string(final_val), "'" => "''")
+                        clause = "$(alias).$(column_name) $(op) '$(escaped_val)'"
+                    end
+
+                    push!(where_clauses, clause)
+                end
+            end
+        end
+    end
+
+    # 3. Assemble Final Query
+    where_sql = isempty(where_clauses) ? "" : "WHERE " * join(where_clauses, " AND ")
+    
+    return string(base_query, where_sql, ";")
+end
+
+