public void TestConstructor()
{
//-------------Setup Test Pack ------------------
const string surname = "Surname";
string surnameValue = TestUtil.GetRandomString();
Criteria criteria = new Criteria(surname, Criteria.ComparisonOp.Equals, surnameValue);
//-------------Execute test ---------------------
CriteriaDB criteriaDB = new CriteriaDB(criteria);
//-------------Test Result ----------------------
Assert.AreEqual(criteria, criteriaDB);
}
public void Test_ToString_IsNullCriteria()
{
//-------------Setup Test Pack ------------------
const string surnameField = "Surname";
Criteria criteria = new Criteria(surnameField, Criteria.ComparisonOp.Is, null);
const string surnameTable = "surname_table";
criteria.Field.Source = new Source(surnameTable);
CriteriaDB surnameCriteria = new CriteriaDB(criteria);
//-------------Execute test ---------------------
string tostring = surnameCriteria.ToString(new SqlFormatter("<<", ">>", "",""),
delegate(object value) { return Convert.ToString(value); },
SetupSingleAlias(surnameTable));
//-------------Test Result ----------------------
Assert.AreEqual(string.Format("a1.<<{0}>> IS NULL", surnameField), tostring);
}
public void Test_ToString_BlankSource()
{
//-------------Setup Test Pack ------------------
string surnameValue = Guid.NewGuid().ToString("N");
const string surname = "Surname";
Criteria criteria = new Criteria(surname, Criteria.ComparisonOp.Equals, surnameValue);
criteria.Field.Source = new Source("");
CriteriaDB surnameCriteria = new CriteriaDB(criteria);
//-------------Execute test ---------------------
string tostring = surnameCriteria.ToString(new SqlFormatter("<<", ">>", "", ""),
delegate(object value) { return Convert.ToString(value); },
SetupSingleAlias(""));
//-------------Test Result ----------------------
Assert.AreEqual(string.Format("a1.<<{0}>> = {1}", surname, surnameValue), tostring);
}
private void AppendWhereClause(StringBuilder builder, SqlStatement statement)
{
Criteria fullCriteria = Criteria.MergeCriteria(_selectQuery.Criteria, _selectQuery.DiscriminatorCriteria);
ClassDef classDef = (ClassDef) _selectQuery.ClassDef;
if (classDef != null && classDef.ClassID.HasValue)
{
Criteria classIDCriteria = new Criteria("DMClassID", Criteria.ComparisonOp.Equals, classDef.ClassID.Value);
classIDCriteria.Field.Source = this.Source;
fullCriteria = Criteria.MergeCriteria(fullCriteria, classIDCriteria);
}
if (fullCriteria == null) return;
builder.Append(" WHERE ");
CriteriaDB criteriaDB = new CriteriaDB(fullCriteria);
string whereClause = criteriaDB.ToString(_sqlFormatter, value => AddParameter(value, statement),Aliases);
builder.Append(whereClause);
}
/// <summary>
/// Converts this Criteria object to a string, using field names instead of property names and entity names instead of
/// source names. The <see cref="AddParameterDelegate"/> allows a database query builder to create a parameter value
/// when adding the value to the string for use with parametrized SQL. Also see <see cref="ISqlStatement"/>.
///
/// The <see cref="ToString()"/> method uses this method with a simple delegate that converts DateTimes and Guids
/// to sensible string representations and to
/// </summary>
/// See <see cref="PropNameConverterDelegate"/>
/// <param name="formatter">A formatter for any specific database <see cref="SqlFormatter"/></param>
/// <param name="addParameter">The delegate to use to convert the value in object form to a value in string form.
/// See <see cref="AddParameterDelegate"/></param>
/// <returns>The Criteria in string form.</returns>
public string ToString(ISqlFormatter formatter, AddParameterDelegate addParameter, IDictionary<string, string> aliases)
{
if (IsComposite())
{
string rightCriteriaAsString;
if (LogicalOperator == LogicalOp.Not)
{
rightCriteriaAsString = new CriteriaDB(RightCriteria).ToString(formatter, addParameter, aliases);
return string.Format("{0} ({1})", _logicalOps[(int)LogicalOperator], rightCriteriaAsString);
}
string leftCriteriaAsString = new CriteriaDB(LeftCriteria).ToString(formatter, addParameter, aliases);
rightCriteriaAsString = new CriteriaDB(RightCriteria).ToString(formatter, addParameter, aliases);
return string.Format("({0}) {1} ({2})", leftCriteriaAsString, _logicalOps[(int)LogicalOperator],
rightCriteriaAsString);
}
string valueString;
string comparisonOperator = ComparisonOperatorString();
if (_criteria.CanBeParametrised())
{
valueString = addParameter(FieldValue);
} else
{
if (FieldValue == null)
{
valueString = "NULL";
if (this.ComparisonOperator == ComparisonOp.Equals) comparisonOperator = "IS";
if (this.ComparisonOperator == ComparisonOp.NotEquals) comparisonOperator = "IS NOT";
}
else
{
valueString = Convert.ToString(FieldValue);
}
}
string sourceEntityName = "";
string separator = "";
if (Field.Source != null)
{
var fieldSourceName = Field.Source.ChildSourceLeaf.ToString();
if (!aliases.ContainsKey(fieldSourceName))
{
var userMessage = string.Format("The source '{0}' for the property '{1}' "
+ "in the given criteria does not have an alias provided for it.",
Field.Source, Field.PropertyName);
var developerMessage = userMessage
+ " The criteria object may have not been prepared correctly before the aliases were set up.";
throw new HabaneroDeveloperException(userMessage, developerMessage);
}
sourceEntityName = aliases[fieldSourceName];
separator = ".";
}
string fieldNameString = formatter.DelimitField(Field.FieldName);
return string.Format("{0}{1}{2} {3} {4}", sourceEntityName, separator, fieldNameString, comparisonOperator, valueString);
}
/// <summary>
/// Converts this Criteria object to a string, using field names instead of property names and entity names (aliased) instead of
/// source names. The <see cref="AddParameterDelegate"/> allows a database query builder to create a parameter value
/// when adding the value to the string for use with parametrized SQL. Also see <see cref="ISqlStatement"/>.
///
/// The <see cref="ToString()"/> method uses this method with a simple delegate that converts DateTimes and Guids
/// to sensible string representations and to
///
/// Provide a set of aliases to replace entity names with their aliases.
/// </summary>
/// See <see cref="PropNameConverterDelegate"/>
/// <param name="formatter">A formatter for any specific database <see cref="SqlFormatter"/></param>
/// <param name="addParameter">The delegate to use to convert the value in object form to a value in string form.
/// See <see cref="AddParameterDelegate"/></param>
/// <param name="aliases">The mapping of aliases to use</param>
/// <returns>The Criteria in string form.</returns>
public string ToString(ISqlFormatter formatter, AddParameterDelegate addParameter, IDictionary <string, string> aliases)
{
if (IsComposite())
{
string rightCriteriaAsString;
if (LogicalOperator == LogicalOp.Not)
{
rightCriteriaAsString = new CriteriaDB(RightCriteria).ToString(formatter, addParameter, aliases);
return(string.Format("{0} ({1})", _logicalOps[(int)LogicalOperator], rightCriteriaAsString));
}
string leftCriteriaAsString = new CriteriaDB(LeftCriteria).ToString(formatter, addParameter, aliases);
rightCriteriaAsString = new CriteriaDB(RightCriteria).ToString(formatter, addParameter, aliases);
return(string.Format("({0}) {1} ({2})", leftCriteriaAsString, _logicalOps[(int)LogicalOperator],
rightCriteriaAsString));
}
string valueString;
string comparisonOperator = ComparisonOperatorString();
if (_criteria.CanBeParametrised())
{
valueString = addParameter(FieldValue);
}
else
{
if (FieldValue == null)
{
valueString = "NULL";
if (this.ComparisonOperator == ComparisonOp.Equals)
{
comparisonOperator = "IS";
}
if (this.ComparisonOperator == ComparisonOp.NotEquals)
{
comparisonOperator = "IS NOT";
}
}
else
{
valueString = Convert.ToString(FieldValue);
}
}
string sourceEntityName = "";
string separator = "";
if (Field.Source != null)
{
var fieldSourceName = Field.Source.ChildSourceLeaf.ToString();
if (!aliases.ContainsKey(fieldSourceName))
{
var userMessage = string.Format("The source '{0}' for the property '{1}' "
+ "in the given criteria does not have an alias provided for it.",
Field.Source, Field.PropertyName);
var developerMessage = userMessage
+ " The criteria object may have not been prepared correctly before the aliases were set up.";
throw new HabaneroDeveloperException(userMessage, developerMessage);
}
sourceEntityName = aliases[fieldSourceName];
separator = ".";
}
string fieldNameString = formatter.DelimitField(Field.FieldName);
return(string.Format("{0}{1}{2} {3} {4}", sourceEntityName, separator, fieldNameString, comparisonOperator, valueString));
}
public void Test_ToString_WithFieldHavingSource_WhenAliasMissing_ShouldThrowError()
{
//---------------Set up test pack-------------------
const string sourceName = "mysource";
const string propertyName = "testproperty";
QueryField queryField = new QueryField(propertyName, "testfield", new Source(sourceName));
Criteria criteria = new Criteria(queryField, Criteria.ComparisonOp.Equals, "myvalue");
IDictionary<string, string> aliases = new Dictionary<string, string>();
CriteriaDB criteriaDb = new CriteriaDB(criteria);
SqlFormatter sqlFormatter = new SqlFormatter("[", "]", "", "LIMIT");
//---------------Execute Test ----------------------
var habaneroDeveloperException = Assert.Throws<HabaneroDeveloperException>(() =>
{
criteriaDb.ToString(sqlFormatter, value => "Param", aliases);
});
//---------------Test Result -----------------------
Assert.IsNotNull(habaneroDeveloperException);
var expectedMessage = string.Format("The source '{0}' for the property '{1}' " + "in the given criteria does not have an alias provided for it.", sourceName, queryField.PropertyName);
var expectedDeveloperMessage = expectedMessage
+ " The criteria object may have not been prepared correctly before the aliases were set up.";
Assert.AreEqual(expectedMessage, habaneroDeveloperException.Message);
Assert.AreEqual(expectedDeveloperMessage, habaneroDeveloperException.DeveloperMessage);
}
public void Test_ToString_ShouldUseAliases()
{
//---------------Set up test pack-------------------
const string sourceName = "mysource";
var source1 = new Source(sourceName);
Source field1Source = source1;
QueryField field1 = new QueryField("testfield", "testfield", field1Source);
Criteria criteria = new Criteria(field1, Criteria.ComparisonOp.Equals, "myvalue");
IDictionary<string, string> aliases = new Dictionary<string, string>() { { source1.ToString(), "a1" } };
CriteriaDB criteriaDb = new CriteriaDB(criteria);
SqlFormatter sqlFormatter = new SqlFormatter("[", "]", "", "LIMIT");
//---------------Execute Test ----------------------
string whereClause = criteriaDb.ToString(sqlFormatter, value => "Param", aliases);
//---------------Test Result -----------------------
StringAssert.AreEqualIgnoringCase("a1.[testfield] = Param", whereClause);
}
public void Test_ToString_NotIn()
{
//---------------Set up test pack-------------------
string surnameValue1 = Guid.NewGuid().ToString("N");
string surnameValue2 = Guid.NewGuid().ToString("N");
const string surname = "Surname";
CriteriaDB surnameCriteria =
new CriteriaDB(new Criteria(surname, Criteria.ComparisonOp.NotIn, new object[] { surnameValue1, surnameValue2 }));
//---------------Assert PreConditions---------------
//---------------Execute Test ----------------------
string criteriaAsString = surnameCriteria.ToString(new SqlFormatter("", "", "", ""), value => value.ToString());
//---------------Test Result -----------------------
string expectedString = string.Format("Surname NOT IN ('{0}', '{1}')", surnameValue1, surnameValue2);
StringAssert.AreEqualIgnoringCase(expectedString, criteriaAsString);
//---------------Tear Down -------------------------
}
public void Test_ToString_UsingDelegates()
{
//---------------Set up test pack-------------------
string surnameValue = Guid.NewGuid().ToString("N");
const string surname = "Surname";
CriteriaDB surnameCriteria =
new CriteriaDB(new Criteria(surname, Criteria.ComparisonOp.Equals, surnameValue));
DateTime dateTimeValue = DateTime.Now;
const string datetimePropName = "DateTime";
CriteriaDB dateTimeCriteria =
new CriteriaDB(new Criteria(datetimePropName, Criteria.ComparisonOp.GreaterThan, dateTimeValue));
CriteriaDB andCriteria =
new CriteriaDB(new Criteria(surnameCriteria, Criteria.LogicalOp.And, dateTimeCriteria));
//---------------Execute Test ----------------------
int i = 0;
string criteriaAsString = andCriteria.ToString(new SqlFormatter("", "","",""), delegate { return "param" + i++; });
//---------------Test Result -----------------------
const string expectedString = "(Surname = param0) AND (DateTime > param1)";
StringAssert.AreEqualIgnoringCase(expectedString, criteriaAsString);
//---------------Tear Down -------------------------
}
