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• PHP XPath - how to get value from result

  - by LeeTee

  I have the followng XML file from Ebay <GeteBayDetailsResponse xmlns="urn:ebay:apis:eBLBaseComponents"><Timestamp>2012-07-04T12:02:14.541Z</Timestamp><Ack>Success</Ack><Version>779</Version><Build>E779_INTL_BUNDLED_14986004_R1</Build><SiteDetails><Site>US</Site><SiteID>0</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Canada</Site><SiteID>2</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>UK</Site><SiteID>3</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Germany</Site><SiteID>77</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Australia</Site><SiteID>15</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>France</Site><SiteID>71</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>eBayMotors</Site><SiteID>100</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Italy</Site><SiteID>101</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Netherlands</Site><SiteID>146</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Spain</Site><SiteID>186</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>India</Site><SiteID>203</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>HongKong</Site><SiteID>201</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Singapore</Site><SiteID>216</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Malaysia</Site><SiteID>207</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Philippines</Site><SiteID>211</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>CanadaFrench</Site><SiteID>210</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Poland</Site><SiteID>212</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Belgium_Dutch</Site><SiteID>123</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Belgium_French</Site><SiteID>23</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Austria</Site><SiteID>16</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Switzerland</Site><SiteID>193</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><SiteDetails><Site>Ireland</Site><SiteID>205</SiteID><DetailVersion>1</DetailVersion><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></SiteDetails><UpdateTime>2009-07-09T10:48:17.000Z</UpdateTime></GeteBayDetailsResponse> I need to get the value of node SiteID where the node Site matches whatever variable I pass. The code I have is: $xml_file ='SiteDetails.xml'; $xmlDoc = new DomDocument(); $xmlDoc->load($xml_file); $xpath = new DOMXpath($xmlDoc); $siteIDList = $xpath->query("/GeteBayDetailsResponse/SiteDetails[Site=$site]/SiteID"); var_dump($siteIDList); echo $siteIDList->SiteID; I get the following result: object(DOMNodeList)#11 (0) { } Can anyone help? I want to get a value of 3.

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• How do I code this relationship in SQLAlchemy?

  - by Martin Del Vecchio

  I am new to SQLAlchemy (and SQL, for that matter). I can't figure out how to code the idea I have in my head. I am creating a database of performance-test results. A test run consists of a test type and a number (this is class TestRun below) A test suite consists the version string of the software being tested, and one or more TestRun objects (this is class TestSuite below). A test version consists of all test suites with the given version name. Here is my code, as simple as I can make it: from sqlalchemy import * from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import relationship, backref, sessionmaker Base = declarative_base() class TestVersion (Base): __tablename__ = 'versions' id = Column (Integer, primary_key=True) version_name = Column (String) def __init__ (self, version_name): self.version_name = version_name class TestRun (Base): __tablename__ = 'runs' id = Column (Integer, primary_key=True) suite_directory = Column (String, ForeignKey ('suites.directory')) suite = relationship ('TestSuite', backref=backref ('runs', order_by=id)) test_type = Column (String) rate = Column (Integer) def __init__ (self, test_type, rate): self.test_type = test_type self.rate = rate class TestSuite (Base): __tablename__ = 'suites' directory = Column (String, primary_key=True) version_id = Column (Integer, ForeignKey ('versions.id')) version_ref = relationship ('TestVersion', backref=backref ('suites', order_by=directory)) version_name = Column (String) def __init__ (self, directory, version_name): self.directory = directory self.version_name = version_name # Create a v1.0 suite suite1 = TestSuite ('dir1', 'v1.0') suite1.runs.append (TestRun ('test1', 100)) suite1.runs.append (TestRun ('test2', 200)) # Create a another v1.0 suite suite2 = TestSuite ('dir2', 'v1.0') suite2.runs.append (TestRun ('test1', 101)) suite2.runs.append (TestRun ('test2', 201)) # Create another suite suite3 = TestSuite ('dir3', 'v2.0') suite3.runs.append (TestRun ('test1', 102)) suite3.runs.append (TestRun ('test2', 202)) # Create the in-memory database engine = create_engine ('sqlite://') Session = sessionmaker (bind=engine) session = Session() Base.metadata.create_all (engine) # Add the suites in version1 = TestVersion (suite1.version_name) version1.suites.append (suite1) session.add (suite1) version2 = TestVersion (suite2.version_name) version2.suites.append (suite2) session.add (suite2) version3 = TestVersion (suite3.version_name) version3.suites.append (suite3) session.add (suite3) session.commit() # Query the suites for suite in session.query (TestSuite).order_by (TestSuite.directory): print "\nSuite directory %s, version %s has %d test runs:" % (suite.directory, suite.version_name, len (suite.runs)) for run in suite.runs: print " Test '%s', result %d" % (run.test_type, run.rate) # Query the versions for version in session.query (TestVersion).order_by (TestVersion.version_name): print "\nVersion %s has %d test suites:" % (version.version_name, len (version.suites)) for suite in version.suites: print " Suite directory %s, version %s has %d test runs:" % (suite.directory, suite.version_name, len (suite.runs)) for run in suite.runs: print " Test '%s', result %d" % (run.test_type, run.rate) The output of this program: Suite directory dir1, version v1.0 has 2 test runs: Test 'test1', result 100 Test 'test2', result 200 Suite directory dir2, version v1.0 has 2 test runs: Test 'test1', result 101 Test 'test2', result 201 Suite directory dir3, version v2.0 has 2 test runs: Test 'test1', result 102 Test 'test2', result 202 Version v1.0 has 1 test suites: Suite directory dir1, version v1.0 has 2 test runs: Test 'test1', result 100 Test 'test2', result 200 Version v1.0 has 1 test suites: Suite directory dir2, version v1.0 has 2 test runs: Test 'test1', result 101 Test 'test2', result 201 Version v2.0 has 1 test suites: Suite directory dir3, version v2.0 has 2 test runs: Test 'test1', result 102 Test 'test2', result 202 This is not correct, since there are two TestVersion objects with the name 'v1.0'. I hacked my way around this by adding a private list of TestVersion objects, and a function to find a matching one: versions = [] def find_or_create_version (version_name): # Find existing for version in versions: if version.version_name == version_name: return (version) # Create new version = TestVersion (version_name) versions.append (version) return (version) Then I modified my code that adds the records to use it: # Add the suites in version1 = find_or_create_version (suite1.version_name) version1.suites.append (suite1) session.add (suite1) version2 = find_or_create_version (suite2.version_name) version2.suites.append (suite2) session.add (suite2) version3 = find_or_create_version (suite3.version_name) version3.suites.append (suite3) session.add (suite3) Now the output is what I want: Suite directory dir1, version v1.0 has 2 test runs: Test 'test1', result 100 Test 'test2', result 200 Suite directory dir2, version v1.0 has 2 test runs: Test 'test1', result 101 Test 'test2', result 201 Suite directory dir3, version v2.0 has 2 test runs: Test 'test1', result 102 Test 'test2', result 202 Version v1.0 has 2 test suites: Suite directory dir1, version v1.0 has 2 test runs: Test 'test1', result 100 Test 'test2', result 200 Suite directory dir2, version v1.0 has 2 test runs: Test 'test1', result 101 Test 'test2', result 201 Version v2.0 has 1 test suites: Suite directory dir3, version v2.0 has 2 test runs: Test 'test1', result 102 Test 'test2', result 202 This feels wrong to me; it doesn't feel right that I am manually keeping track of the unique version names, and manually adding the suites to the appropriate TestVersion objects. Is this code even close to being correct? And what happens when I'm not building the entire database from scratch, as in this example. If the database already exists, do I have to query the database's TestVersion table to discover the unique version names? Thanks in advance. I know this is a lot of code to wade through, and I appreciate the help.

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• Generate a merge statement from table structure

  - by Nigel Rivett

  This code generates a merge statement joining on he natural key and checking all other columns to see if they have changed. The full version deals with type 2 processing and an audit trail but this version is useful. Just the insert or update part is handy too. Change the table at the top (spt_values in master in the version) and the join columns for the merge in @nk. The output generated is at the top and the code to run to generate it below. Output merge spt_values a using spt_values b on a.name = b.name and a.number = b.number and a.type = b.type when matched and (1=0 or (a.low b.low) or (a.low is null and b.low is not null) or (a.low is not null and b.low is null) or (a.high b.high) or (a.high is null and b.high is not null) or (a.high is not null and b.high is null) or (a.status b.status) or (a.status is null and b.status is not null) or (a.status is not null and b.status is null) ) then update set low = b.low , high = b.high , status = b.status when not matched by target then insert ( name , number , type , low , high , status ) values ( b.name , b.number , b.type , b.low , b.high , b.status ); Generator set nocount on declare @t varchar(128) = 'spt_values' declare @i int = 0 -- this is the natural key on the table used for the merge statement join declare @nk table (ColName varchar(128)) insert @nk select 'Number' insert @nk select 'Name' insert @nk select 'Type' declare @cols table (seq int, nkseq int, type int, colname varchar(128)) ;with cte as ( select ordinal_position, type = case when columnproperty(object_id(@t), COLUMN_NAME,'IsIdentity') = 1 then 3 when nk.ColName is not null then 1 else 0 end, COLUMN_NAME from information_schema.columns c left join @nk nk on c.column_name = nk.ColName where table_name = @t ) insert @cols (seq, nkseq, type, colname) select ordinal_position, row_number() over (partition by type order by ordinal_position) , type, COLUMN_NAME from cte declare @result table (i int, j int, k int, data varchar(500)) select @i = @i + 1 insert @result (i, data) select @i, 'merge ' + @t + ' a' select @i = @i + 1 insert @result (i, data) select @i, ' using cte b' select @i = @i + 1 insert @result (i, j, data) select @i, nkseq, ' ' + case when nkseq = 1 then 'on' else 'and' end + ' a.' + ColName + ' = b.' + ColName from @cols where type = 1 select @i = @i + 1 insert @result (i, data) select @i, ' when matched and (1=0' select @i = @i + 1 insert @result (i, j, k, data) select @i, seq, 1, ' or (a.' + ColName + ' b.' + ColName + ')' + ' or (a.' + ColName + ' is null and b.' + ColName + ' is not null)' + ' or (a.' + ColName + ' is not null and b.' + ColName + ' is null)' from @cols where type 1 select @i = @i + 1 insert @result (i, data) select @i, ' )' select @i = @i + 1 insert @result (i, data) select @i, ' then update set' select @i = @i + 1 insert @result (i, j, data) select @i, nkseq, ' ' + case when nkseq = 1 then ' ' else ', ' end + colname + ' = b.' + colname from @cols where type = 0 select @i = @i + 1 insert @result (i, data) select @i, ' when not matched by target then insert' select @i = @i + 1 insert @result (i, data) select @i, ' (' select @i = @i + 1 insert @result (i, j, data) select @i, seq, ' ' + case when seq = 1 then ' ' else ', ' end + colname from @cols where type 3 select @i = @i + 1 insert @result (i, data) select @i, ' )' select @i = @i + 1 insert @result (i, data) select @i, ' values' select @i = @i + 1 insert @result (i, data) select @i, ' (' select @i = @i + 1 insert @result (i, j, data) select @i, seq, ' ' + case when seq = 1 then ' ' else ', ' end + 'b.' + colname from @cols where type 3 select @i = @i + 1 insert @result (i, data) select @i, ' );' select data from @result order by i,j,k,data

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• What would be the Query to get exact same result like Windows 7 start menu search for Programs using Windows Search service?

  - by Somnath

  I would like to implement the same search application like Windows 7 using microsoft.search.interop.dll, C#. Currently I'm using System.Kind property to retrieve information regarding the programs from Windows Search but the results set does not look same like Windows 7 search. Order of items are different. SELECT TOP 3 System.ItemNameDisplay, System.DateAccessed FROM SystemIndex WHERE System.ItemNameDisplay LIKE 'ad%' AND (System.Kind='Program') What would be the Query to get exact same result like Windows 7 start menu search for Programs? As an example : search token = 'ad' Windows 7 search result Adobe Reader 9, Add a device, Adobe Photoshop 7.0 Search Result from my code Adobe ImageReady 7.0 , Adobe Photoshop 7.0 , Adobe Reader 9

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• Polynomial division overloading operator

  - by Vlad

  Ok. here's the operations i successfully code so far thank's to your help: Adittion: polinom operator+(const polinom& P) const { polinom Result; constIter i = poly.begin(), j = P.poly.begin(); while (i != poly.end() && j != P.poly.end()) { //logic while both iterators are valid if (i->pow > j->pow) { //if the current term's degree of the first polynomial is bigger Result.insert(i->coef, i->pow); i++; } else if (j->pow > i->pow) { // if the other polynomial's term degree is bigger Result.insert(j->coef, j->pow); j++; } else { // if both are equal Result.insert(i->coef + j->coef, i->pow); i++; j++; } } //handle the remaining items in each list //note: at least one will be equal to end(), but that loop will simply be skipped while (i != poly.end()) { Result.insert(i->coef, i->pow); ++i; } while (j != P.poly.end()) { Result.insert(j->coef, j->pow); ++j; } return Result; } Subtraction: polinom operator-(const polinom& P) const //fixed prototype re. const-correctness { polinom Result; constIter i = poly.begin(), j = P.poly.begin(); while (i != poly.end() && j != P.poly.end()) { //logic while both iterators are valid if (i->pow > j->pow) { //if the current term's degree of the first polynomial is bigger Result.insert(-(i->coef), i->pow); i++; } else if (j->pow > i->pow) { // if the other polynomial's term degree is bigger Result.insert(-(j->coef), j->pow); j++; } else { // if both are equal Result.insert(i->coef - j->coef, i->pow); i++; j++; } } //handle the remaining items in each list //note: at least one will be equal to end(), but that loop will simply be skipped while (i != poly.end()) { Result.insert(i->coef, i->pow); ++i; } while (j != P.poly.end()) { Result.insert(j->coef, j->pow); ++j; } return Result; } Multiplication: polinom operator*(const polinom& P) const { polinom Result; constIter i, j, lastItem = Result.poly.end(); Iter it1, it2, first, last; int nr_matches; for (i = poly.begin() ; i != poly.end(); i++) { for (j = P.poly.begin(); j != P.poly.end(); j++) Result.insert(i->coef * j->coef, i->pow + j->pow); } Result.poly.sort(SortDescending()); lastItem--; while (true) { nr_matches = 0; for (it1 = Result.poly.begin(); it1 != lastItem; it1++) { first = it1; last = it1; first++; for (it2 = first; it2 != Result.poly.end(); it2++) { if (it2->pow == it1->pow) { it1->coef += it2->coef; nr_matches++; } } nr_matches++; do { last++; nr_matches--; } while (nr_matches != 0); Result.poly.erase(first, last); } if (nr_matches == 0) break; } return Result; } Division(Edited): polinom operator/(const polinom& P) { polinom Result, temp; Iter i = poly.begin(); constIter j = P.poly.begin(); if (poly.size() < 2) { if (i->pow >= j->pow) { Result.insert(i->coef, i->pow - j->pow); *this = *this - Result; } } else { while (true) { if (i->pow >= j->pow) { Result.insert(i->coef, i->pow - j->pow); temp = Result * P; *this = *this - temp; } else break; } } return Result; } The first three are working correctly but division doesn't as it seems the program is in a infinite loop. Update Because no one seems to understand how i thought the algorithm, i'll explain: If the dividend contains only one term, we simply insert the quotient in Result, then we multiply it with the divisor ans subtract it from the first polynomial which stores the remainder. If the polynomial we do this until the second polynomial( P in this case) becomes bigger. I think this algorithm is called long division, isn't it? So based on these, can anyone help me with overloading the / operator correctly for my class? Thanks!

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• Find multiple regex in each line and skip result if one of the regex doesn't match

  - by williamx

  I have a list of variables: variables = ['VariableA', 'VariableB','VariableC'] which I'm going to search for, line by line ifile = open("temp.txt",'r') d = {} match = zeros(len(variables)) for line in ifile: emptyCells=0 for i in range(len(variables)): regex = r'('+variables[i]+r')[:|=|\(](-?\d+(?:\.\d+)?)(?:\))?' pattern_variable = re.compile(regex) match[i] = re.findall(pattern_variable, line) if match[j] == []: emptyCells = emptyCells+1 if emptyCells == 0: for k, v in match[j]: d.setdefault(k, []).append(v) The requirement is that I will only keep the lines where all the regex'es matches! I want to collect all results for each variable in a dictionary where the variable name is the key, and the value becomes a list of all matches. The code provided is only what I've found out so far, and is not working perfectly yet...

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• C# Can I return HttpWebResponse result to iframe - Uses Digest authentication

  - by chadsxe

  I am trying to figure out a way to display a cross-domain web page that uses Digest Authentication. My initial thought was to make a web request and return the entire page source. I currently have no issues with authenticating and getting a response but I am not sure how to properly return the needed data. // Create a request for the URL. WebRequest request = WebRequest.Create("http://some-url/cgi/image.php?type=live"); // Set the credentials. request.Credentials = new NetworkCredential(username, password); // Get the response. HttpWebResponse response = (HttpWebResponse)request.GetResponse(); // Get the stream containing content returned by the server. Stream dataStream = response.GetResponseStream(); // Open the stream using a StreamReader for easy access. StreamReader reader = new StreamReader(dataStream); // Read the content. string responseFromServer = reader.ReadToEnd(); // Clean up the streams and the response. reader.Close(); dataStream.Close(); response.Close(); return responseFromServer; My problems are currently... responseFromServer is not returning the entire source of the page. I.E. missing body and head tags The data is encoded improperly in responseFromServer. I believe this has something to do with the transfer encoding being of the type chunked. Further more... I am not entirely sure if this is even possible. If it matters, this is being done in ASP.NET MVC 4 C#. Thanks, Chad

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• LINQ - IEnumerable.Join on Anonymous Result Set in VB.NET

  - by user337501

  I've long since built a way around this, but it still keeps bugging me... it doesnt help that my grasp of dynamic LINQ queries is still shakey. For the example: Parent has fields (ParentKey, ParentField) Child has fields (ChildKey, ParentKey, ChildField) Pet has fields (PetKey, ChildKey, PetField) Child has a foreign key reference to Parent on Child.ParentKey = Parent.ParentKey Pet has a foreign key reference to Child on Pet.Childkey = Child.ChildKey Simple enough eh? Lets say I have LINQ like this... Dim Q = FROM p in DataContext.Parent _ Join c In DataContext.Child On c.ParentKey = p.ParentKey Consider this a "base query" on which I will perform other filtering actions. Now I want to join the Pet table like this: Q = Q.Join(DataContext.Pet, _ Function(a) a.c.ChildKey, _ Function(p As Pet) p.ChildKey, _ Function(a, p As Pet) p.ChildKey = a.c.ChildKey) The above Join call doesnt work. I sort of understand why it doesnt work, but hopefully it'll show you how I tried to accomplish this task. After all this was done I would have appended a Select to finish the job. Any ideas on a better way to do this? I tried it with the PredicateBuilder with little success. I might not know how to use it right but it felt like it wasnt gonna handle the joining.

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• Deserializing a complex JSON result (array of dictionaries) with TouchJSON

  - by jpm

  I did a few tests with TouchJSON last night and it worked pretty well in general for simple cases. I'm using the following code to read some JSON content from a file, and deserialize it: NSString *jsonString = [[NSString alloc] initWithContentsOfFile:@"data.json"]; NSData *jsonData = [jsonString dataUsingEncoding:NSUTF32BigEndianStringEncoding]; NSError *error = nil; NSDictionary *items = [[CJSONDeserializer deserializer] deserializeAsDictionary:jsonData error:&error]; NSLog(@"total items: %d", [items count]); NSLog(@"error: %@", [error localizedDescription]); That works fine if I have a very simple JSON object in the file (i.e. a dictionary): {"id": "54354", "name": "boohoo"} This way I was able to get access to the array of values, as I wanted to get the item based on its index within the list: NSArray *items_list = [items allValues]; NSString *name = [items_list objectAtIndex:1]; (I understand that I could have fetched the name with the dictionary API) Now I would like to deserialize a semi-complex JSON string, which represents an array of dictionaries. An example of such a JSON string is below: [{"id": "123456", "name": "touchjson"}, {"id": "3456", "name": "bleh"}] When I try to run the same code above against this new content in the data.json file, I don't get any results back. My NSLog() call says "total items: 0", and no error is coming back in the NSError object. Any clues on what is going on? I'm completely lost on what to do, as there isn't much documentation available for TouchJSON, and much less usage examples.

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• Unexpected result in .NET 4 DirectoryInfo.EnumerateFiles(string)

  - by xkingpin

  It seems that the following code is not working as expected. I would assume that the following call to EnumarateFiles would only return files that match the filename pattern of c* ... however, filenames with H* are still getting returned. For example... the following file will get deleted in the following code (HNNN09060900932.xml). What's the issue? This is a major bug in my application. string searchPattern = "C*"; // get each file in this directory that is less than a given date var files = from file in SubDir.EnumerateFiles(searchPattern) where file.LastWriteTime < KeepDate select file; foreach (var file in files) { file.Delete(); }

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• zsh make **/*.cpp **/*.cxx **/*.hpp not result in error

  - by anon

  I have "v" aliased to "vim */.cpp */.hpp */.cxx" Problem is, if I'm in a directory without any .cxx files, zsh treats this as an error. Is there anyway to tell zsh to create the absence of */*.cxx files as "" instead of an error?

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• Image cropping in PHP is producing blank result

  - by thinkswan

  I'm simply trying to crop a JPEG image (no scaling) using PHP. Here is my function, along with the inputs. function cropPicture($imageLoc, $width, $height, $x1, $y1) { $newImage = imagecreatetruecolor($width, $height); $source = imagecreatefromjpeg($imageLoc); imagecopyresampled($newImage,$source,0,0,$x1,$y1,$width,$height,$width,$height); imagejpeg($newImage,$imageLoc,90); } When I call it as follows--cropPicture('image.jpg', 300, 300, 0, 0)--the function completes properly, but I'm left with a black image that is 300x300 px (in other words, a blank canvas). Am I passing in the wrong arguments? The image exists and is writeable.

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• How to reproduce System.Security.Cryptography.SHA1Managed result in Python

  - by joetyson

  Here's the deal: I'm moving a .NET website to Python. I have a database with passwords hashed using the System.Security.Cryptography.SHA1Managed utility. I'm creating the hash in .NET with the following code: string hashedPassword = Cryptographer.CreateHash("MYHasher", userInfo.Password); The MYHasher block looks like this: <add algorithmType="System.Security.Cryptography.SHA1Managed, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=blahblahblah" saltEnabled="true" type="Microsoft.Practices.EnterpriseLibrary.Security.Cryptography.HashAlgorithmProvider, Microsoft.Practices.EnterpriseLibrary.Security.Cryptography, Version=3.0.0.0, Culture=neutral, PublicKeyToken=daahblahdahdah" name="MYHasher" /> So for a given password, I get back and store in the database a 48 byte salted sha1. I assume the last 8 bytes are the salt. I have tried to reproduce the hashing process in python by doing a sha1(salt + password) and sha1(password + salt) but I'm having no luck. My question to you: How are the public keys being used? How is the password rehashed using the salt. How is the salt created? (e.g., When I say saltEnabled="true", what extra magic happens?) I need specific details that don't just reference other .NET libraries, I'm looking for the actual operational logic that happens in the blackbox. Thanks!

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• XmlDocument SelectNodes(Xpath): Order of result

  - by crauscher

  This is an example xml from MSDN <?xml version="1.0"?> <!-- A fragment of a book store inventory database --> <bookstore xmlns:bk="urn:samples"> <book genre="novel" publicationdate="1997" bk:ISBN="1-861001-57-8"> <title>Pride And Prejudice</title> </book> <book genre="novel" publicationdate="1992" bk:ISBN="1-861002-30-1"> <title>The Handmaid's Tale</title> </book> <book genre="novel" publicationdate="1991" bk:ISBN="1-861001-57-6"> <title>Emma</title> </book> <book genre="novel" publicationdate="1982" bk:ISBN="1-861001-45-3"> <title>Sense and Sensibility</title> </book> </bookstore> When I select all book nodes using the following code, which order will these nodes have? XmlDocument doc = new XmlDocument(); doc.Load("booksort.xml"); var nodeList =doc.SelectNodes("bookstore/book"); Will the order of the items in the nodelist be the same as the order in the xml? Is this order guaranteed?

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• Cache the result of a MySQLdb database query in memory

  - by ensnare

  Our application fetches the correct database server from a pool of database servers. So each query is really 2 queries, and they look like this: Fetch the correct DB server Execute the query We do this so we can take DB servers online and offline as necessary, as well as for load-balancing. But the first query seems like it could be cached to memory, so it only actually queries the database every 5 or 10 minutes or so. What's the best way to do this? Thanks.

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• Ajax.BeginForm return result and show data appropriate

  - by niao

  I have a from on my page as follows: <% using (Ajax.BeginForm("AddAnswer","Marketplace",new AjaxOptions() {HttpMethod = "POST" })){ %> AddAnswer action adds some data to db. What I want to do is: when answer has been successfully added, append #answers div with the current answer passed to controller. When answer has not been successfully added to db - I would like to display appropriate error in #errors div. How can I do this?

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• weird result with c# winForms array of Lists

  - by jello

  so I'm trying to store values in an array of Lists in C# winForms. In the for loop in which I make the sql statment, everything works fine: the message box outputs a different medication name each time. for (int i = 0; i < numberOfMeds; i++) { queryStr = "select * from biological where medication_name = '" + med_names[i] + "' and patient_id = " + patientID.patient_id; using (var conn = new SqlConnection(connStr)) using (var cmd = new SqlCommand(queryStr, conn)) { conn.Open(); using (SqlDataReader rdr = cmd.ExecuteReader()) { while (rdr.Read()) { medObject.medication_date = (DateTime)rdr["patient_history_date_bio"]; medObject.medication_name = rdr["medication_name"].ToString(); medObject.medication_dose = Convert.ToInt32(rdr["medication_dose"]); medsList[i].Add(medObject); } } conn.Close(); MedicationTimelineClass medObjectx = medsList[i][0] as MedicationTimelineClass; MessageBox.Show(medObjectx.medication_name); } } but then, when I take the message box code out of the loop, meaning that the array of Lists is supposed to be populated, I always get the same value: the last value entered. the same medication name, no matter what number I put between those brackets. It's like if the whole array of Lists is populated with the same data. for (int i = 0; i < numberOfMeds; i++) { queryStr = "select * from biological where medication_name = '" + med_names[i] + "' and patient_id = " + patientID.patient_id; using (var conn = new SqlConnection(connStr)) using (var cmd = new SqlCommand(queryStr, conn)) { conn.Open(); using (SqlDataReader rdr = cmd.ExecuteReader()) { while (rdr.Read()) { medObject.medication_date = (DateTime)rdr["patient_history_date_bio"]; medObject.medication_name = rdr["medication_name"].ToString(); medObject.medication_dose = Convert.ToInt32(rdr["medication_dose"]); medsList[i].Add(medObject); } } conn.Close(); } } MedicationTimelineClass medObjectx = medsList[0][0] as MedicationTimelineClass; MessageBox.Show(medObjectx.medication_name); what's going on here?

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• hibernate get unique field result

  - by cometta

  i use below to get unique "departmentCode" , but by using distinct, my list only return 'departmentCode' all other fields are not retrieved from table, how to retrieve other fields as well like 'divisionCode' and make sure 'departmentCode' is always unique? DetachedCriteria crit = DetachedCriteria.forClass(Company.class); crit.setProjection(Projections.distinct(Projections.property("departmentCode")));

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• rails question find no result

  - by Small Wolf

  Hey.Guys! Now .I have a question ,i want someone to help me to solve it ,the log of the problem like the under text >> Department.find(EmeReference.find(:all,:select =>:ref_config_id,:conditions=>"emergency_id = 1")) ActiveRecord::RecordNotFound: Couldn't find Department with ID=0 from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1591:in `find_one' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:1574:in `find_from_ids_without_cache' from (__DELEGATION__):2:in `__send__' from (__DELEGATION__):2:in `find_from_ids_without_cache' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:158:in `find_from_keys' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/primary_key.rb:31:in `miss' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:66:in `hit_or_miss' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/accessor.rb:17:in `call' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/accessor.rb:17:in `fetch' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/accessor.rb:29:in `get' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:65:in `hit_or_miss' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:18:in `perform' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/primary_key.rb:17:in `perform' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/query/abstract.rb:7:in `perform' from /usr/lib/ruby/gems/1.8/gems/nkallen-cache-money-0.2.5/lib/cash/finders.rb:29:in `find_from_ids' from /usr/lib/ruby/gems/1.8/gems/activerecord-2.3.2/lib/active_record/base.rb:616:in `find' from (irb):135 that's the question! Thank your and best regards!

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• Unexpected result in C algebra for search algorithm.

  - by Rhys

  Hi, I've implemented this search algorithm for an ordered array of integers. It works fine for the first data set I feed it (500 integers), but fails on longer searches. However, all of the sets work perfectly with the other four search algorithms I've implemented for the assignment. This is the function that returns a seg fault on line 178 (due to an unexpected negative m value). Any help would be greatly appreciated. CODE: 155 /* perform Algortihm 'InterPolationSearch' on the set 156 * and if 'key' is found in the set return it's index 157 * otherwise return -1 */ 158 int 159 interpolation_search(int *set, int len, int key) 160 { 161 int l = 0; 162 int r = len - 1; 163 int m; 164 165 while (set[l] < key && set[r] >= key) 166 { 167 168 printf ("m = l + ((key - set[l]) * (r - l)) / (set[r] - set[l])\n"); 169 170 printf ("m = %d + ((%d - %d) * (%d - %d)) / (%d - %d);\n", l, key, set[l], r, l, set[r], set[l]); 171 m = l + ((key - set[l]) * (r - l)) / (set[r] - set[l]); 172 printf ("m = %d\n", m); 173 174 #ifdef COUNT_COMPARES 175 g_compares++; 176 #endif 177 178 if (set[m] < key) 179 l = m + 1; 180 else if (set[m] > key) 181 r = m - 1; 182 else 183 return m; 184 } 185 186 if (set[l] == key) 187 return l; 188 else 189 return -1; 190 } OUTPUT: m = l + ((key - set[l]) * (r - l)) / (set[r] - set[l]) m = 0 + ((68816 - 0) * (100000 - 0)) / (114836 - 0); m = -14876 Thankyou! Rhys

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• How to "unbind" result on Jquery Autocomplete?

  - by Cesar

  Hi, I have this code to enable autocomplete:

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• Linq-to-sql Compiled Query is caching result from disposed DataContext

  - by Vladimir Kojic

  Compiled query: public static Func<OperationalDataContext, short, Machine> QueryMachineById = CompiledQuery.Compile((OperationalDataContext db, short machineID) => db.Machines.Where(m => m.MachineID == machineID).SingleOrDefault()); It looks like compiled query is caching Machine object and returning the same object even if query is called from new DataContext (I’m disposing DataContext in the service but I’m getting Machine from previous DataContext). I use POCOs and XML mapping. Getting cached object from the same datacontext is ok, but when I call query with new DataContext I don’t want to get object from old datacontext. Is there something that I don’t do right ? Thanks, Vladimir

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• Does hibernate query result always return a list?

  - by Phoenix

  Does a query execution always have to return a list ? How do I replace the code below if I am sure it will only return a single object ? @Override public List<DocInfo> findAllByDocId(String docId) { Query q = getCurrentSession().createQuery("from DocInfo item where item.id = :docId"); q.setString("docId", docId); List<DocInfo> docInfoList = q.list(); return docInfoList; }

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• Does vsize give the currect result for number?

  - by sathish reddy

  When I create a table as create table e_det(eno number,ename varchar2(20),sal number); I inserted eno as 111 ename as jone sal as 2000 vsize(ename) returns 4 because name is 4 characters. vsize(sal); returns 2. Can you explain this?

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• MODx: Wrong Result using Ditto and JSON output

  - by adantz

  I'm using the following Ditto call: [!Ditto? parents='8' &dateSource='event_date' &summarize='100' &format='json' !] But Ditto ignores the dateSource param as long as format is set to JSON. I'm using MODx evo and Ditto 2.1.0. Any ideas?

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