SQL load book

Makefile

@@ -97,7 +97,7 @@ clean:
 	    -e "s!@CGIURI@!$(CGIURI)!g" $< >$@
 
 $(TARGET): $(OBJS)
-	$(CC) $(STATIC) -o $@ $(OBJS) $(LDFLAGS) -lkcgi -lkcgijson -lz -lsqlite3 -pthread
+	$(CC) $(STATIC) -o $@ $(OBJS) ksql.o $(LDFLAGS) -lkcgi -lkcgijson -lz -lsqlite3 -pthread
 
 $(OBJS): extern.h
 

db.c

@@ -28,6 +28,39 @@
 
 #include "extern.h"
 
+enum    stmt {
+    STMT_BOOK,
+    STMT__MAX
+};
+
+static const char *const stmts[STMT__MAX] = {
+  /* STMT_BOOK */
+  "SELECT books.id AS id,title FROM books WHERE books.id = ?",
+};
+
+struct book *
+db_book_load(struct kreq *r, int64_t id)
+{
+  struct ksqlstmt *stmt;
+  struct book   *book;
+  int i = 0;
+
+  ksql_stmt_alloc(r->arg, &stmt, 
+            stmts[STMT_BOOK], 
+            STMT_BOOK);
+  ksql_bind_int(stmt, 0, id);
+  if (KSQL_ROW != ksql_stmt_step(stmt)) {
+    ksql_stmt_free(stmt);
+    return(NULL);
+  }
+  book = kcalloc(1, sizeof(struct book));
+  book->id = ksql_stmt_int(stmt, i++);
+  book->title = kstrdup(ksql_stmt_str(stmt, i++));
+  ksql_stmt_free(stmt);
+  return book;
+}
+
+
 /*
  * Open the database and stash the resulting handle in the d
  */

extern.h

@@ -17,8 +17,18 @@
 #ifndef EXTERN_H
 #define EXTERN_H
 
+/*
+ * A book.
+ */
+struct book {
+  int64_t   id; /* unique identifier */
+  char     *title;
+};
+
 __BEGIN_DECLS
 
+struct book * db_book_load(struct kreq *r, int64_t id);
+
 void		 db_close(struct kreq *);
 int		 db_open(struct kreq *, const char *);
 

main.c

@@ -101,8 +101,10 @@ sendbooks(struct kreq *r)
     id = r->fieldmap[KEY_ID]->parsed.i;
   if (r->path[0] != '\0')
     id = strtonum(r->path, INT64_MIN, INT64_MAX, &errid);
-  if (id > 0)
+  if (id > 0) {
       kjson_putintp(&req, "id", id);
+      db_book_load(r, id);
+  }
 
   kjson_putstringp(&req, "_path", r->path);
   kjson_putstringp(&req, "_pname", r->pname);