source: TI07-MOLES/trunk/StubB/XSLT/browse/portal/cgi/browse/renderDiscoverySet.py @ 1173

Subversion URL: http://proj.badc.rl.ac.uk/svn/ndg/TI07-MOLES/trunk/StubB/XSLT/browse/portal/cgi/browse/renderDiscoverySet.py@1173
Revision 1173, 5.3 KB checked in by lawrence, 14 years ago (diff)

Handling selection and browse history better ...

Line 
1from DiscoveryWS import DiscoveryWS,DiscoveryState
2from DIF import DIF
3from htmlUtilities import *
4
5def renderDiscoverySet(difSet,state,selector=None,summary=0,services=0,spatial=0,temporal=0,
6    linkto='NDG_B_SERVICE'):
7    '''Takes a set of xml DIFS from a discovery search (difSet) and renders a
8    list of responses as a table, with layout depending on a set of keywords:
9            summary (boolean) - show the abstract,
10            services (boolean) - show the service list,
11            spatial (boolean) - show the bounding box,
12            temporal (boolean) - show the date range,
13            linkto (string) - clicking on the select widget should add the url for
14                              this service to the selected list
15     Note that state is a DiscoveryState instance containing the sessionID from the search,
16     and the offset, stride, and total number of results ...selector is a class for adding
17     particular datasets to a selection dataset (and cookie).
18     '''
19           
20    #
21    # List of methods which deal with the actual row content ...
22    #   
23   
24    def row(rowList,bgcolor='rbgWhite'):
25        h='<tr class="%s">'%bgcolor
26        for item in rowList:
27            if type(item)==type((1,2)):
28                h+='<td colspan="%s">%s</td>'%(item[1],item[0])
29            else:h+='<td>%s</td>'%item
30        h+='</tr>'
31        return h#span(h,bgcolor)
32
33    def spatialBox(elem):
34        return elem.bbox.toHTMLbox()
35     
36    def temporalRange(elem):
37        return ''
38   
39    def serviceList(d):
40        ll=span(' Links: ','ndgem')
41        ndg=0
42        ll+=d.binding.icon()
43        for item in d.services:
44            ll+=', '
45            #s=0
46            if item.serviceType == 'NDG_A_SERVICE': 
47                ll+=item.icon()
48                ndg+=1
49            elif item.serviceType == 'NDG_B_SERVICE':
50                ndg+=1
51                ll+=item.icon()
52            else:
53                ll+=item.icon()
54       
55        if ndg<2: ndg=0
56        return ndg,ll
57
58   
59    # ##################################
60    # Actual html production follows
61    # ##################################
62   
63    # depending on keyword options, provide column headings
64    #
65   
66    columns=['Dataset',]   
67    if spatial: columns.append('Location')
68    if temporal: 
69        #two columns for temporal but put a column header across both columns
70        header='''<table><tbody><tr><td colspan="2" align="center">Time&nbsp;Coverage</td></tr><tr>
71        <td align="center">Start</td><td align="center"> End</td></tr></tbody></table>'''
72        columns.append((header,2))
73    html='<div class="ListOfResults"><table><tbody>'+row(columns,bgcolor="rbgBeige")
74   
75    # ok, now let's cycle through the hits
76    i=1
77    for item in difSet:
78        d=item # we used to do the diffing here ... but we don't anymore
79        bgc={1:'rbgWhite',-1:'rbgGrey'}[i]
80        i=-1*i
81       
82        if d.elem is None:
83            html+='<tr class="%s"><td colspan="%s"> Unparseable record </td></tr>'%(bgc,len(columns))
84        else:
85            ndg,slist=serviceList(d)
86            rlist=[abbreviate(d.name,60),]
87            if summary:
88                rlist[0]='%s: %s'%(span('Name','ndgem'),rlist[0])
89                rlist[0]+='<br/>%s: %s'%(span('Summary','ndgem'),abbreviate(d.abstract,200))
90                rlist[0]+=' '+hyperlink('(more)',d.binding.url)
91            rlist[0]+='<br/>%s: %s.'%(span('Repository','ndgem'),d.centre.toHTML())
92            if not summary:
93                rlist[0]+=' '+hyperlink('(more)',d.binding.url)
94            if services:rlist[0]+=slist
95            if ndg and selector !=None: 
96                rlist[0]+=',&nbsp;'+selector.target(d.entryID,name=d.abbreviation)
97            if spatial: rlist.append(spatialBox(d))
98            if temporal: 
99                rlist.append(htmlTime(d.timeCoverage[0]))
100                rlist.append(htmlTime(d.timeCoverage[1]))
101            html+=row(rlist,bgcolor=bgc)
102
103    html+='</tbody></table>'
104   
105    #now work out the links to step through a large result set
106    html+='<p>Results %s to %s of %s'%(state.offset,min(state.offset+state.stride-1,state.hits),state.hits)
107    if state.stride < state.hits and selector is not None:
108        if state.offset+state.stride-1<state.hits:
109            next1=state.offset+state.stride
110            nextNum=min(next1+state.stride,state.hits)-next1
111            s1='Next %s'%nextNum
112            nexturl='%s&start=%s&howmany=%s'%(selector.baseURL,next1,nextNum)
113            html+=', %s'%hyperlink(s1,nexturl)
114        if state.offset>1:
115            last1=state.offset-state.stride
116            lastNum=state.stride
117            l1='Last %s'%lastNum
118            lasturl='%s&start=%s&howmany=%s'%(selector.baseURL,last1,lastNum)
119            html+=', %s'%hyperlink(l1,lasturl)
120    else:
121        html+='</p>'
122    html+='</div>'
123    return html
124
125if __name__=="__main__":
126
127    ws=DiscoveryWS()
128    hits=ws.SearchFullText('acsoe')
129    results=ws.GetResults(offset=1,number=5)
130    difs=[]
131    querystring='dummyUrl'
132    state=DiscoveryState(ws.sessID,querystring,hits,stride=5)
133    #g=file('log.xml','w')
134    for result in results:
135        #g.write(xmlCleanup(result)+'\n')
136        difs.append(DIF(result,serviceFile='serviceMap.config'))
137    html=renderDiscoverySet(difs,state,summary=1,spatial=1,temporal=1)
138    f=file('output.html','wb')
139    f.write(html)
140    ws.release()
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