Author: wyoung
Date: Sat Aug 11 00:30:04 2007
New Revision: 1749
URL: http://svn.gna.org/viewcvs/mysqlpp?rev=1749&view=rev
Log:
Added operator=(const std::string&) and several assign() overloads to
ColData, to give more options for changing the value of an existing
ColData object. This is most useful with SSQLS and BLOBs: the field
type is a ColData, and you will almost certainly have to do a 2-step
create with it, since the alternative is creating a temporary ColData
just to call the copy ctor...ick.
Modified:
trunk/Wishlist
trunk/lib/coldata.h
Modified: trunk/Wishlist
URL:
http://svn.gna.org/viewcvs/mysqlpp/trunk/Wishlist?rev=1749&r1=1748&r2=1749&view=diff
==============================================================================
--- trunk/Wishlist (original)
+++ trunk/Wishlist Sat Aug 11 00:30:04 2007
@@ -61,12 +61,6 @@
made into a base class that all SSQLSes derive from. Some
template functions like Query::insert<T> might become regular
member functions, taking a reference to the SSQLS base class.
-
- o Revamp ColData:
-
- - Add operator =(const std::string&)
-
- - Add assign() methods to parallel all ctors
o Rework elment access in subscript_iterator derivatives:
Modified: trunk/lib/coldata.h
URL:
http://svn.gna.org/viewcvs/mysqlpp/trunk/lib/coldata.h?rev=1749&r1=1748&r2=1749&view=diff
==============================================================================
--- trunk/lib/coldata.h (original)
+++ trunk/lib/coldata.h Sat Aug 11 00:30:04 2007
@@ -174,6 +174,48 @@
/// \brief Destroy string
~ColData();
+ /// \brief Assign raw data to this object
+ ///
+ /// This parallels the ctor with the same parameters, for when you
+ /// must do a 2-step create, or when you want to reassign the data
+ /// without creating a ColData temporary to get around the fact
+ /// that operator=() can only take one parameter.
+ void assign(const char* str, size_type len,
+ mysql_type_info type = mysql_type_info::string_type,
+ bool is_null = false)
+ {
+ dec_ref_count();
+ buffer_ = new Buffer(str, len, type, is_null);
+ }
+
+ /// \brief Assign a C++ string to this object
+ ///
+ /// This parallels the ctor with the same parameters, for when you
+ /// must do a 2-step create, or when you want to reassign the data
+ /// without creating a ColData temporary to get around the fact
+ /// that operator=() can only take one parameter.
+ void assign(const std::string& str,
+ mysql_type_info type = mysql_type_info::string_type,
+ bool is_null = false)
+ {
+ dec_ref_count();
+ buffer_ = new Buffer(str.data(), str.length(), type, is_null);
+ }
+
+ /// \brief Assign a C string to this object
+ ///
+ /// This parallels the ctor with the same parameters, for when you
+ /// must do a 2-step create, or when you want to reassign the data
+ /// without creating a ColData temporary to get around the fact
+ /// that operator=() can only take one parameter.
+ void assign(const char* str,
+ mysql_type_info type = mysql_type_info::string_type,
+ bool is_null = false)
+ {
+ dec_ref_count();
+ buffer_ = new Buffer(str, strlen(str), type, is_null);
+ }
+
/// \brief Return a character within the string.
///
/// Unlike \c operator[](), this function throws an
@@ -245,6 +287,17 @@
/// \brief Get this object's current MySQL type.
mysql_type_info type() const { return buffer_->type(); }
+
+ /// \brief Assignment operator, from C++ string
+ ColData& operator =(const std::string& rhs)
+ {
+ dec_ref_count();
+
+ buffer_ = new Buffer(rhs.data(), rhs.length(),
+ mysql_type_info::string_type, false);
+
+ return *this;
+ }
/// \brief Assignment operator, from C string
///
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